129:
1760:
281:
1724:
1248:
1267:
1323:
1212:
32:
1360:
1286:(External Plus) with sizes ranging from 1EP to 42EP as well as smaller sizes ranging from H7EP to H2EP and includes five-lobed tamper-resistant variants. The specifications for these licenses are held by Textron. Standard Torx drivers can be used to drive Torx Plus screws, but not to full torque because of the loose fit. Torx Plus drivers will not fit into standard Torx screws.
1736:
2629:
1748:
137:
646:(diameter of circle circumscribed on the cross-section of the tip of the screw driver). Common sizes include T10, T15, and T25, while T35 and T47 tend to see specialized use. Only the proper driver can drive a specific head size without risk of damaging the driver or screw. The same series of Torx drivers is used to drive
2232:
1338:
engagement (branded
Frixion Fit), designed to minimize wobbling (branded Stable Drive) without pressing and the need for magnetic bits, a feature that can be important to certain industrial users. Standard Torx drivers can be used to drive Torx ttap screws, but Torx ttap drivers will not fit standard
320:
The green circle, passing through the six points of contact between the two components, represents the direction of the rotational force being exerted at each of those points. Because the plane of contact is not perpendicular to this circle, a radial force is also generated which tends to "burst" the
312:
automatic screwdrivers for use in factories allowed this change. Rather than rely on the tool to slip out of the screw head when a desired torque level is reached (which risks damage to the driver tip, screw head, or workpiece), torque-limiting driver designs achieve a desired torque consistently.
1202:
Although the brand "Torx" generally refers to the standard 6-star-driver or -socket, there are many variations to the original design, including a number made or licensed by Torx. Other tool manufacturers have been producing 8-, 10- and 12-point star drivers and sockets for many decades. The Torx
645:
Torx head sizes are described using the capital letter "T" followed by a number ranging from T1 to T100. Some manufacturers and resellers head sizes are also described using "TX" or "Tx" in front of the number. A smaller number corresponds to a smaller point-to-point dimension of the screw head
316:
The Torx design allows for a higher torque to be exerted than a similarly sized conventional hex socket head without damaging the head or the tool. The diagram depicts the interaction between the male and female components of a conventional hex drive and a Torx drive. The clearance between the
328:
For the Torx type of design, the angle is much closer to 90° than in the case of the hex head, and so for a given torque the potentially damaging radial force is much lower. This property allows the head of the fastener to be smaller for the same required torque, which can be an advantage in
1350:
is a tamper-proof fastener where a convex and smooth fastener head is topped with a break-away Torx drive that snaps off when the engineered torque is reached, leaving a rivet-like bolt head that cannot be easily removed. The main application for these fasteners is in the railroad industry.
1375:, where the screw head has the shape of a Torx screwdriver bit, and a Torx socket is used to drive it. The external "E" Torx nominal sizing does not correlate to the "T" size, (e.g. an E40 socket is too large to fit a T40 Torx bit, while an E8 Torx socket will fit a T40 Torx bit).
321:
female component and "crush" the male one. If this radial force component is too great for the material to withstand, it will cause the corners to be rounded off one or both components or will split the sides of the female part. The magnitude of this force is proportional to the
657:
The "external" variants of Torx head sizes (see below) are described using the capital letter "E" followed by a number ranging from E4 to E44. The "E" numbers are different from the "T" numbers of the same size: for example, an E4 Torx socket fits a T20 head.
2213:
1278:, was introduced around 1990 when the original Torx patent was expiring. The Torx Plus patent subsequently expired in 2011. The lobes are more square to allow for higher torque and to minimize wear. The name is shortened to
1235:
contains a post in the center of the head that prevents a standard Torx driver from being inserted. However, the pin allows a smaller flat head screw driver to be used successfully between two adjacent lobes.
1312:
is a highly specialized variant used on the ends of fasteners opposite the bolt-head, and provides higher torque than other drive systems allow. Torxstem is a stud with the Torx Plus Maxx drive on both
2083:
304:
screws. Whereas the tendency of
Phillips drivers to cam out under excessive torque has been listed as a feature preventing damage to the screw-head or driver, Torx heads were designed to
284:
The angle between the plane of contact between tool and fastener and the circumferentially directed force is much closer to 90° in a Torx type of head (lower) than in a conventional
1941:
1239:
Security Torx has its own set of variations, and many other variations of Torx drives are available in
Security or TR versions. These include five- and seven-lobed TR heads.
1294:
lobes rather than six, plus a solid post in the center, and is used for security as the drivers are uncommon. Though
Acument (formerly Textron) lists no designation,
1894:
195:
2415:
2183:
1799:
Fastening
Systems in the 1990s. In 2006 Textron Fastening Systems was sold to Platinum Equities, LLC, of Beverly Hills, California. They renamed the company
2344:
2108:
1959:
2307:
2087:
2549:
632:
2469:
1723:
115:
2249:
2043:
2389:
2598:
2280:
647:
1982:
53:
1759:
2133:
1804:
2158:
2581:
272:, as described below, were developed. Torx screws are also becoming increasingly popular in construction industries.
2419:
625:
96:
2550:"Technical Information on Fasteners: Design recommendations 11.1 Inside drives for screws – AW drive (AW-Antrieb)"
2187:
1334:
was developed in 2006 and is licensed by
Acument Intellectual Properties. It features a second recess to create a
42:
68:
1698:
Group in
Germany. It is available in five sizes: AW 10, AW 20, AW 25, AW 30 and AW 40.
1258:
is a further developed Torx Drive System with 6% longer flanks which results in a 20% higher applicable torque.
128:
2495:
2440:
1694:
is a hexalobular-type screw head similar to Torx, with a tapered profile to aid in centering, developed by the
132:
A security Torx L-key and fastener with holes for a safety pin to hinder disassembly with an ordinary Torx key.
1705:
2351:
2112:
75:
2369:"TS Star Bits (5 Sided) 1/4"D 7pc - Part No. 3389 - Part of the TS Star/Torx* Plus range from Laser Tools"
2211:, Goss, David & Seidl, Richard, "Elliptical lobed drive system", issued 1993-05-04
1704:
has a similar screw drive design to Torx ttap and was introduced in 2005 by German fastener manufacturer
1935:
618:
241:
49:
1747:
1955:
82:
2556:
606:
601:
591:
586:
581:
565:
560:
555:
534:
529:
508:
503:
498:
493:
478:
473:
457:
452:
447:
442:
426:
421:
416:
411:
406:
401:
396:
391:
386:
381:
365:
360:
345:
257:
651:
2007:
280:
64:
2368:
2327:
1916:
1735:
1282:(Internal Plus) with sizes ranging from 1IP to 100IP (sometimes listed as IP1 to IP100 ) and
261:
2633:
1847:
2473:
1906:
1335:
1247:
249:
154:
2649:
596:
141:
268:
were not widely available. However, as torx drivers became more common, tamper-resistant
1868:
2256:
2050:
1266:
309:
2643:
2393:
2312:
297:
2602:
2284:
1203:
brand is often used universally to describe these and other star driver variations.
2227:
2208:
1986:
1211:
325:
of the angle (depicted in orange) between the green circle and the contact plane.
89:
1837:, Bernard F. Reiland, "Coupling arrangement and tools for same", filed 1967-03-21
2582:"Construction Range Overview (Fasteners: Introducing the AW Drive System, p. 3)"
2137:
1322:
265:
245:
175:
31:
1359:
1833:
654:
and other thread system fasteners, reducing the number of bit sizes required.
237:
233:
1920:
2084:"2 Pcs T35 3/13 Torx Head Screwdriver Link 1/2 Square Mechanic Drive Socket"
1803:, which as of 2010 includes Avdel, Camcar, Ring Screw, and others. In 2014,
1303:
322:
301:
178:
characterized by a 6-point star-shaped pattern, developed in 1967 by Camcar
2525:
2628:
2069:
ISO 10664:2014 - Hexalobular internal driving feature for bolts and screws
2067:
1911:
1695:
253:
20:
2230:, D·戈斯 & R·赛德尔, "有椭圆凸出部的传动装置", issued 2000-01-05
1796:
488:
483:
293:
285:
179:
136:
1776:
2503:
2448:
1358:
1321:
1265:
1246:
1210:
279:
135:
127:
19:"Star key" redirects here. For the key on a telephone keypad, see
260:. Initially, they were sometimes used in applications requiring
25:
2023:"Contorion: digitaler Fachhändler für Handwerk und Industrie"
329:
applications where space to accommodate the head is limited.
206:. This is sometimes abbreviated in databases and catalogs as
2022:
160:
2184:"TORX PARALOBE Drive System | Acument Global Technologies"
1800:
16:
Screw drive with 6-lobed star-shaped flower-petal pattern
288:
head (upper). (Exaggerated for illustrational purposes)
2308:"When a Phillips is not a Phillips Plus So Much More!"
1290:
A tamper-resistant version of Torx Plus exists having
166:
163:
157:
56:. Unsourced material may be challenged and removed.
1895:"Fast and Secure: how much proof is tamperproof?"
194:. The official generic name, standardized by the
1940:: CS1 maint: bot: original URL status unknown (
2555:. Adolf Würth GmbH & Co. KG. Archived from
1302:may be seen. The screw may alternatively be a
196:International Organization for Standardization
2472:. Acument Global Technologies. Archived from
626:
8:
2244:
2242:
2109:"FTX47E, Socket Driver, TORX, GM-style, T47"
2350:. Textron Fastening Systems. Archived from
2049:. Textron Fastening Systems. Archived from
1977:
1975:
1973:
1971:
1969:
1828:
1826:
1824:
1379:Properties of various External Torx drives
2038:
2036:
1923:. Archived from the original on 2007-02-09
1377:
633:
619:
336:
182:. A popular generic name for the drive is
2345:"Tamper-Resistant TORX PLUS Drive System"
1910:
269:
116:Learn how and when to remove this message
660:
1820:
1807:from Platinum Equity to Fontana Gruppo.
1788:
1719:
573:
547:
516:
465:
434:
373:
352:
344:
317:components is exaggerated for clarity.
1933:
1389:
1386:
1383:
1330:A proprietary version of Torx called
675:
672:
669:
666:
7:
2599:"Multi-Material Construction Screws"
54:adding citations to reliable sources
2441:"TORX ttap Advantages and benefits"
2159:"7 Lobe Pin Button Security Screws"
1983:"Chart of Torx fasteners and tools"
308:cam-out. The development of better
292:By design, Torx head screws resist
662:Properties of various Torx drives
232:Torx screws are commonly found on
14:
1795:Camcar eventually became part of
2627:
2392:. Wiha Tools USA. Archived from
2390:"Security TORX PLUS Insert Bits"
2283:. Wiha Tools USA. Archived from
1985:. Wiha Tools USA. Archived from
1758:
1746:
1734:
1729:Torx bits T15, T20, T25, and T30
1722:
153:
30:
1753:Closeup of Torx screwdriver tip
174:) is a trademark for a type of
41:needs additional citations for
2502:. Ttapdrive AS. Archived from
2306:Pavlis, Egon (16 March 2010).
1371:version exists, also known as
264:, since the drive systems and
1:
2526:"Acument Global Technologies"
2416:"TORX PLUS MAXX Drive System"
1390:Standard fastener selection
229:are improved head profiles.
2281:"TORX PLUS Long arm L-Keys"
1801:Acument Global Technologies
210:(starting with the numeral
2666:
2587:. Würth New Zealand. 2016.
1893:Sharke, Paul (June 2005).
1251:Torx Paralobe head pattern
140:A Torx T8 screw head on a
18:
2601:. Spax US. Archived from
2255:. Acument. Archived from
1706:Altenloh, Brinck & Co
1403:
1400:
1397:
1394:
689:
686:
683:
680:
214:, not the capital letter
21:asterisk § Telephony
2250:"TORX PLUS Drive System"
1387:Point-to-point distance
1355:External (inverted) Torx
670:Point-to-point distance
427:Phillips/Slotted
1869:"What Is a Torx Screw?"
276:Principles of operation
2496:"Torx ttap Advantages"
1899:Mechanical Engineering
1364:
1327:
1326:Torx Ttap head pattern
1271:
1270:Torx Plus head pattern
1252:
1216:
289:
145:
133:
2328:"Fastening Solutions"
1834:U.S. patent 3,584,667
1708:under its brand name
1362:
1325:
1269:
1250:
1225:Tamper-Resistant Torx
1214:
673:Maximum torque range
283:
242:bicycle brake systems
139:
131:
2636:at Wikimedia Commons
2506:on 23 September 2019
2134:"Fiero Torx Sockets"
1912:10.1115/1.2005-JUN-2
1873:Fastener Engineering
1687:Competitive variants
1363:External Torx driver
1310:Torx Plus Maxx Stems
1227:(often shortened to
1215:Security Torx driver
258:consumer electronics
204:hexalobular internal
50:improve this article
2476:on 27 February 2017
2396:on 13 December 2015
2044:"TORX Drive System"
1380:
1219:A version known as
663:
340:Part of a series on
1378:
1365:
1328:
1274:A Torx successor,
1272:
1253:
1217:
661:
484:Hex socket (Allen)
479:Robertson (square)
290:
146:
134:
2632:Media related to
2287:on 7 October 2015
2021:GmbH, Contorion.
1783:Explanatory notes
1684:
1683:
1195:
1194:
643:
642:
262:tamper resistance
126:
125:
118:
100:
2657:
2631:
2615:
2614:
2612:
2610:
2595:
2589:
2588:
2586:
2578:
2572:
2571:
2569:
2567:
2561:
2554:
2546:
2540:
2539:
2537:
2536:
2522:
2516:
2515:
2513:
2511:
2492:
2486:
2485:
2483:
2481:
2466:
2460:
2459:
2457:
2456:
2447:. Archived from
2437:
2431:
2430:
2428:
2427:
2418:. Archived from
2412:
2406:
2405:
2403:
2401:
2386:
2380:
2379:
2377:
2375:
2365:
2359:
2358:
2356:
2349:
2341:
2335:
2334:
2332:
2324:
2318:
2317:
2303:
2297:
2296:
2294:
2292:
2277:
2271:
2270:
2268:
2267:
2261:
2254:
2246:
2237:
2236:
2235:
2231:
2224:
2218:
2217:
2216:
2212:
2205:
2199:
2198:
2196:
2195:
2186:. Archived from
2179:
2173:
2172:
2170:
2169:
2155:
2149:
2148:
2146:
2145:
2136:. Archived from
2130:
2124:
2123:
2121:
2120:
2111:. Archived from
2105:
2099:
2098:
2096:
2095:
2086:. Archived from
2080:
2074:
2073:
2064:
2058:
2057:
2055:
2048:
2040:
2031:
2030:
2018:
2012:
2011:
2004:
1998:
1997:
1995:
1994:
1979:
1964:
1963:
1962:
1958:
1952:
1946:
1945:
1939:
1931:
1929:
1928:
1914:
1890:
1884:
1883:
1881:
1880:
1865:
1859:
1858:
1856:
1855:
1848:"ISO 10664:2005"
1844:
1838:
1836:
1830:
1808:
1805:Acument was sold
1793:
1762:
1750:
1738:
1726:
1381:
664:
635:
628:
621:
504:12-spline flange
466:Internal polygon
435:External polygon
337:
250:hard disk drives
188:star screwdriver
173:
172:
169:
168:
165:
162:
159:
121:
114:
110:
107:
101:
99:
58:
34:
26:
2665:
2664:
2660:
2659:
2658:
2656:
2655:
2654:
2640:
2639:
2624:
2619:
2618:
2608:
2606:
2605:on 16 June 2024
2597:
2596:
2592:
2584:
2580:
2579:
2575:
2565:
2563:
2562:on 1 March 2017
2559:
2552:
2548:
2547:
2543:
2534:
2532:
2524:
2523:
2519:
2509:
2507:
2494:
2493:
2489:
2479:
2477:
2470:"TTAP Fastener"
2468:
2467:
2463:
2454:
2452:
2439:
2438:
2434:
2425:
2423:
2414:
2413:
2409:
2399:
2397:
2388:
2387:
2383:
2373:
2371:
2367:
2366:
2362:
2354:
2347:
2343:
2342:
2338:
2330:
2326:
2325:
2321:
2305:
2304:
2300:
2290:
2288:
2279:
2278:
2274:
2265:
2263:
2259:
2252:
2248:
2247:
2240:
2233:
2226:
2225:
2221:
2214:
2207:
2206:
2202:
2193:
2191:
2182:Media, Miller.
2181:
2180:
2176:
2167:
2165:
2163:Fastenright Ltd
2157:
2156:
2152:
2143:
2141:
2132:
2131:
2127:
2118:
2116:
2107:
2106:
2102:
2093:
2091:
2082:
2081:
2077:
2066:
2065:
2061:
2053:
2046:
2042:
2041:
2034:
2020:
2019:
2015:
2006:
2005:
2001:
1992:
1990:
1981:
1980:
1967:
1960:
1954:
1953:
1949:
1932:
1926:
1924:
1892:
1891:
1887:
1878:
1876:
1867:
1866:
1862:
1853:
1851:
1846:
1845:
1841:
1832:
1831:
1822:
1817:
1812:
1811:
1794:
1790:
1785:
1773:
1766:
1765:A Torx T30 bolt
1763:
1754:
1751:
1742:
1739:
1730:
1727:
1718:
1689:
1357:
1345:
1320:
1264:
1245:
1209:
1200:
639:
335:
310:torque-limiting
278:
156:
152:
142:hard disk drive
122:
111:
105:
102:
59:
57:
47:
35:
24:
17:
12:
11:
5:
2663:
2661:
2653:
2652:
2642:
2641:
2638:
2637:
2623:
2622:External links
2620:
2617:
2616:
2590:
2573:
2541:
2517:
2487:
2461:
2432:
2407:
2381:
2360:
2357:on 2006-11-10.
2336:
2319:
2298:
2272:
2238:
2219:
2200:
2174:
2150:
2125:
2100:
2075:
2059:
2056:on 2007-01-02.
2032:
2013:
1999:
1965:
1947:
1885:
1860:
1839:
1819:
1818:
1816:
1813:
1810:
1809:
1787:
1786:
1784:
1781:
1780:
1779:
1772:
1769:
1768:
1767:
1764:
1757:
1755:
1752:
1745:
1743:
1740:
1733:
1731:
1728:
1721:
1717:
1714:
1688:
1685:
1682:
1681:
1678:
1675:
1673:
1671:
1667:
1666:
1663:
1660:
1658:
1656:
1652:
1651:
1648:
1645:
1643:
1641:
1637:
1636:
1635:M24 & M27
1633:
1630:
1628:
1626:
1622:
1621:
1618:
1615:
1613:
1611:
1607:
1606:
1605:M18 & M20
1603:
1600:
1597:
1594:
1590:
1589:
1586:
1583:
1580:
1577:
1573:
1572:
1569:
1566:
1563:
1560:
1556:
1555:
1553:
1550:
1547:
1544:
1540:
1539:
1536:
1533:
1530:
1527:
1523:
1522:
1521:M10 & M11
1519:
1516:
1513:
1510:
1506:
1505:
1502:
1499:
1496:
1493:
1489:
1488:
1485:
1482:
1479:
1476:
1472:
1471:
1469:
1467:
1464:
1461:
1457:
1456:
1453:
1450:
1447:
1444:
1440:
1439:
1436:
1433:
1430:
1427:
1423:
1422:
1419:
1416:
1413:
1410:
1406:
1405:
1402:
1399:
1396:
1392:
1391:
1388:
1385:
1356:
1353:
1344:
1341:
1319:
1316:
1315:
1314:
1307:
1263:
1260:
1244:
1241:
1208:
1205:
1199:
1196:
1193:
1192:
1189:
1186:
1183:
1180:
1177:
1173:
1172:
1170:
1167:
1164:
1161:
1158:
1154:
1153:
1150:
1147:
1144:
1141:
1138:
1134:
1133:
1130:
1127:
1124:
1121:
1118:
1114:
1113:
1110:
1107:
1104:
1101:
1098:
1094:
1093:
1090:
1087:
1084:
1081:
1078:
1074:
1073:
1070:
1067:
1064:
1061:
1058:
1054:
1053:
1051:
1049:
1047:
1045:
1042:
1038:
1037:
1035:
1032:
1029:
1026:
1023:
1019:
1018:
1015:
1012:
1009:
1006:
1003:
999:
998:
995:
993:
991:
988:
985:
981:
980:
977:
974:
971:
968:
965:
961:
960:
958:
955:
952:
949:
946:
942:
941:
938:
935:
932:
929:
926:
922:
921:
918:
915:
912:
909:
906:
902:
901:
899:
896:
893:
890:
887:
883:
882:
880:
877:
874:
871:
868:
864:
863:
861:
858:
855:
852:
849:
845:
844:
842:
839:
836:
833:
830:
826:
825:
823:
820:
817:
814:
811:
807:
806:
804:
801:
798:
795:
792:
788:
787:
784:
781:
778:
775:
772:
768:
767:
765:
762:
759:
756:
753:
749:
748:
746:
743:
740:
737:
734:
730:
729:
727:
724:
721:
718:
715:
711:
710:
708:
705:
702:
699:
696:
692:
691:
688:
685:
682:
678:
677:
674:
671:
668:
641:
640:
638:
637:
630:
623:
615:
612:
611:
610:
609:
604:
599:
594:
589:
584:
576:
575:
571:
570:
569:
568:
563:
558:
550:
549:
545:
544:
543:
542:
537:
532:
527:
519:
518:
514:
513:
512:
511:
506:
501:
496:
491:
486:
481:
476:
468:
467:
463:
462:
461:
460:
455:
450:
445:
437:
436:
432:
431:
430:
429:
424:
419:
414:
409:
404:
399:
394:
389:
384:
376:
375:
371:
370:
369:
368:
363:
355:
354:
350:
349:
342:
341:
334:
331:
277:
274:
124:
123:
38:
36:
29:
15:
13:
10:
9:
6:
4:
3:
2:
2662:
2651:
2648:
2647:
2645:
2635:
2630:
2626:
2625:
2621:
2604:
2600:
2594:
2591:
2583:
2577:
2574:
2558:
2551:
2545:
2542:
2531:
2530:Fontana Group
2527:
2521:
2518:
2505:
2501:
2500:Ttapdrive.com
2497:
2491:
2488:
2475:
2471:
2465:
2462:
2451:on 2019-09-23
2450:
2446:
2445:Ttapdrive.com
2442:
2436:
2433:
2422:on 2020-08-09
2421:
2417:
2411:
2408:
2395:
2391:
2385:
2382:
2370:
2364:
2361:
2353:
2346:
2340:
2337:
2329:
2323:
2320:
2315:
2314:
2313:Instructables
2309:
2302:
2299:
2286:
2282:
2276:
2273:
2262:on 2020-08-09
2258:
2251:
2245:
2243:
2239:
2229:
2223:
2220:
2210:
2204:
2201:
2190:on 2019-03-30
2189:
2185:
2178:
2175:
2164:
2160:
2154:
2151:
2140:on 2017-12-12
2139:
2135:
2129:
2126:
2115:on 2013-12-16
2114:
2110:
2104:
2101:
2090:on 2020-11-25
2089:
2085:
2079:
2076:
2071:
2070:
2063:
2060:
2052:
2045:
2039:
2037:
2033:
2028:
2024:
2017:
2014:
2009:
2003:
2000:
1989:on 2015-12-26
1988:
1984:
1978:
1976:
1974:
1972:
1970:
1966:
1957:
1951:
1948:
1943:
1937:
1922:
1918:
1913:
1908:
1904:
1900:
1896:
1889:
1886:
1874:
1870:
1864:
1861:
1849:
1843:
1840:
1835:
1829:
1827:
1825:
1821:
1814:
1806:
1802:
1798:
1792:
1789:
1782:
1778:
1775:
1774:
1770:
1761:
1756:
1749:
1744:
1741:A Torx wrench
1737:
1732:
1725:
1720:
1715:
1713:
1711:
1707:
1703:
1699:
1697:
1693:
1686:
1679:
1676:
1674:
1672:
1669:
1668:
1664:
1661:
1659:
1657:
1654:
1653:
1649:
1646:
1644:
1642:
1639:
1638:
1634:
1631:
1629:
1627:
1624:
1623:
1619:
1616:
1614:
1612:
1609:
1608:
1604:
1601:
1598:
1595:
1592:
1591:
1587:
1584:
1581:
1578:
1575:
1574:
1570:
1567:
1564:
1561:
1558:
1557:
1554:
1551:
1548:
1545:
1542:
1541:
1537:
1534:
1531:
1528:
1525:
1524:
1520:
1517:
1514:
1511:
1508:
1507:
1503:
1500:
1497:
1494:
1491:
1490:
1486:
1483:
1480:
1477:
1474:
1473:
1470:
1468:
1465:
1462:
1459:
1458:
1454:
1451:
1448:
1445:
1442:
1441:
1437:
1434:
1431:
1428:
1425:
1424:
1420:
1417:
1414:
1411:
1408:
1407:
1393:
1382:
1376:
1374:
1373:Inverted Torx
1370:
1369:External Torx
1361:
1354:
1352:
1349:
1342:
1340:
1339:Torx screws.
1337:
1333:
1324:
1317:
1311:
1308:
1305:
1301:
1297:
1293:
1289:
1288:
1287:
1285:
1281:
1277:
1268:
1261:
1259:
1257:
1256:Torx Paralobe
1249:
1243:Torx Paralobe
1242:
1240:
1237:
1234:
1230:
1226:
1222:
1221:Security Torx
1213:
1207:Security Torx
1206:
1204:
1197:
1190:
1187:
1184:
1181:
1178:
1175:
1174:
1171:
1168:
1165:
1162:
1159:
1156:
1155:
1151:
1148:
1145:
1142:
1139:
1136:
1135:
1131:
1128:
1125:
1122:
1119:
1116:
1115:
1111:
1108:
1105:
1102:
1099:
1096:
1095:
1091:
1088:
1085:
1082:
1079:
1076:
1075:
1071:
1068:
1065:
1062:
1059:
1056:
1055:
1052:
1050:
1048:
1046:
1043:
1040:
1039:
1036:
1033:
1030:
1027:
1024:
1021:
1020:
1016:
1013:
1010:
1007:
1004:
1001:
1000:
996:
994:
992:
989:
986:
983:
982:
978:
975:
972:
969:
966:
963:
962:
959:
956:
953:
950:
947:
944:
943:
939:
936:
933:
930:
927:
924:
923:
919:
916:
913:
910:
907:
904:
903:
900:
897:
894:
891:
888:
885:
884:
881:
878:
875:
872:
869:
866:
865:
862:
859:
856:
853:
850:
847:
846:
843:
840:
837:
834:
831:
828:
827:
824:
821:
818:
815:
812:
809:
808:
805:
802:
799:
796:
793:
790:
789:
785:
782:
779:
776:
773:
770:
769:
766:
763:
760:
757:
754:
751:
750:
747:
744:
741:
738:
735:
732:
731:
728:
725:
722:
719:
716:
713:
712:
709:
706:
703:
700:
697:
694:
693:
679:
665:
659:
655:
653:
649:
636:
631:
629:
624:
622:
617:
616:
614:
613:
608:
605:
603:
600:
598:
595:
593:
590:
588:
587:Spline socket
585:
583:
580:
579:
578:
577:
572:
567:
564:
562:
559:
557:
554:
553:
552:
551:
548:Three-pointed
546:
541:
540:External Torx
538:
536:
533:
531:
528:
526:
523:
522:
521:
520:
515:
510:
507:
505:
502:
500:
499:Triple-square
497:
495:
494:Double-square
492:
490:
487:
485:
482:
480:
477:
475:
472:
471:
470:
469:
464:
459:
456:
454:
451:
449:
446:
444:
441:
440:
439:
438:
433:
428:
425:
423:
420:
418:
415:
413:
410:
408:
405:
403:
400:
398:
395:
393:
390:
388:
387:French recess
385:
383:
380:
379:
378:
377:
372:
367:
364:
362:
359:
358:
357:
356:
351:
347:
343:
339:
338:
332:
330:
326:
324:
318:
314:
311:
307:
303:
299:
298:Phillips head
295:
287:
282:
275:
273:
271:
267:
263:
259:
255:
251:
247:
243:
239:
235:
230:
228:
224:
223:Torx Paralobe
221:
217:
213:
209:
205:
201:
197:
193:
189:
185:
181:
177:
171:
150:
143:
138:
130:
120:
117:
109:
98:
95:
91:
88:
84:
81:
77:
74:
70:
67: –
66:
62:
61:Find sources:
55:
51:
45:
44:
39:This article
37:
33:
28:
27:
22:
2607:. Retrieved
2603:the original
2593:
2576:
2564:. Retrieved
2557:the original
2544:
2533:. Retrieved
2529:
2520:
2508:. Retrieved
2504:the original
2499:
2490:
2478:. Retrieved
2474:the original
2464:
2453:. Retrieved
2449:the original
2444:
2435:
2424:. Retrieved
2420:the original
2410:
2398:. Retrieved
2394:the original
2384:
2372:. Retrieved
2363:
2352:the original
2339:
2322:
2311:
2301:
2289:. Retrieved
2285:the original
2275:
2264:. Retrieved
2257:the original
2222:
2203:
2192:. Retrieved
2188:the original
2177:
2166:. Retrieved
2162:
2153:
2142:. Retrieved
2138:the original
2128:
2117:. Retrieved
2113:the original
2103:
2092:. Retrieved
2088:the original
2078:
2068:
2062:
2051:the original
2027:Contorion.at
2026:
2016:
2002:
1991:. Retrieved
1987:the original
1950:
1936:cite journal
1925:. Retrieved
1902:
1898:
1888:
1877:. Retrieved
1875:. 2020-08-12
1872:
1863:
1852:. Retrieved
1842:
1791:
1709:
1701:
1700:
1691:
1690:
1487:M6 & M7
1372:
1368:
1366:
1347:
1346:
1331:
1329:
1309:
1299:
1295:
1291:
1283:
1279:
1275:
1273:
1255:
1254:
1238:
1232:
1228:
1224:
1220:
1218:
1201:
1188:1,843–2,048
1185:1,359–1,511
1169:1,334–1,483
723:0.052–0.066
704:0.015–0.022
656:
644:
602:Spanner head
539:
524:
489:Security hex
327:
319:
315:
305:
296:better than
291:
266:screwdrivers
256:systems and
231:
226:
222:
219:
215:
211:
207:
203:
199:
191:
187:
183:
151:(pronounced
148:
147:
112:
103:
93:
86:
79:
72:
60:
48:Please help
43:verification
40:
2510:26 February
2480:26 February
2008:"Torx bits"
1702:T-Star plus
1336:"stick-fit"
1233:pin-in Torx
517:Hexalobular
346:Screw drive
246:disc brakes
238:motorcycles
234:automobiles
176:screw drive
2535:2023-10-03
2455:2022-04-17
2426:2018-01-17
2333:. Acument.
2266:2013-12-13
2228:CN1048080C
2209:US5207132A
2194:2019-07-11
2168:2022-04-17
2144:2013-12-13
2119:2013-12-13
2094:2013-12-13
1993:2012-01-14
1956:US 2474994
1927:2012-01-14
1879:2021-10-04
1854:2012-01-14
1815:References
1166:984–1,094
1149:943–1,048
1031:63.4–76.1
1014:54.1–65.1
1011:39.9–48.0
976:31.1–37.4
973:22.9–27.6
957:22.5–26.9
954:16.6–19.8
934:11.7–14.0
917:10.5–12.7
803:0.75–0.90
800:0.55–0.66
783:0.43–0.51
780:0.32–0.38
764:0.22–0.28
761:0.16–0.21
745:0.14–0.18
742:0.10–0.13
726:0.07–0.09
707:0.02–0.03
561:Tri-groove
509:Double hex
397:JIS B 1012
361:Slot drive
220:Torx Plus,
106:March 2013
76:newspapers
1921:0025-6501
1905:(6): 32.
1850:. ISO.org
1332:Torx ttap
1318:Torx ttap
1304:Pentalobe
1276:Torx Plus
1262:Torx Plus
1044:GM-Style
1034:86–103.2
676:~ E Torx
607:Line Head
597:Pentalobe
556:Tri-point
535:Torx ttap
530:Polydrive
474:Tri-angle
374:Cruciform
323:cotangent
302:slot head
227:Torx ttap
200:ISO 10664
192:star bits
2644:Category
1771:See also
1692:AW drive
1348:AudiTorx
1343:AudiTorx
1198:Variants
1146:696–773
1129:630–700
1126:460–520
1109:379–445
1106:280–328
1089:218–256
1086:161–189
1069:132–158
937:15.9–19
914:7.7–9.4
898:6.4–7.7
895:4.7–5.7
879:3.7–4.5
876:2.7–3.3
860:2.8–3.4
857:2.1–2.5
841:2.2–2.6
838:1.6–1.9
822:1.4–1.7
819:1.0–1.3
687:(lb·ft)
566:Tri-wing
458:12-point
448:Pentagon
422:Torq-set
417:Supadriv
412:Pozidriv
407:Phillips
392:ISO 8764
382:Frearson
270:variants
254:computer
186:, as in
2609:16 June
2566:2 March
2400:14 July
2374:14 July
2291:14 July
1797:Textron
1716:Gallery
1677:1-3/8"
1662:1-1/4"
1647:1-1/8"
1404:Metric
1229:Torx TR
1066:97–117
592:Quadrex
582:One-way
574:Special
402:Mortorq
353:Slotted
306:prevent
294:cam out
180:Textron
90:scholar
2650:Screws
2234:
2215:
1961:
1919:
1777:Wrench
1568:9/16"
1535:7/16"
1501:5/16"
1182:22.40
1179:0.882
1163:20.20
1160:0.795
1143:17.75
1140:0.699
1123:15.70
1120:0.618
1103:13.45
1100:0.530
1083:11.35
1080:0.447
1060:0.352
1025:0.312
1005:0.266
987:0.232
967:0.220
948:0.201
928:0.177
908:0.156
889:0.132
870:0.110
851:0.102
832:0.094
813:0.083
794:0.069
774:0.059
755:0.053
736:0.047
717:0.039
698:0.035
690:(N·m)
652:metric
443:Square
333:Sizing
92:
85:
78:
71:
65:"Torx"
63:
2585:(PDF)
2560:(PDF)
2553:(PDF)
2355:(PDF)
2348:(PDF)
2331:(PDF)
2260:(PDF)
2253:(PDF)
2054:(PDF)
2047:(PDF)
1696:Würth
1617:7/8"
1602:3/4"
1599:22.1
1596:0.87
1585:5/8"
1582:18.4
1579:0.72
1565:16.6
1562:0.65
1552:1/2"
1549:14.7
1546:0.58
1532:12.8
1529:0.50
1518:3/8"
1515:11.1
1512:0.44
1495:0.37
1484:1/4"
1478:0.29
1463:0.24
1446:0.22
1429:0.19
1412:0.15
1398:(mm)
1395:(in)
1384:Size
1313:ends.
1231:) or
1176:T100
1063:8.95
1028:7.93
1008:6.75
990:5.90
970:5.60
951:5.10
931:4.50
911:3.95
892:3.35
873:2.80
854:2.60
835:2.40
816:2.10
797:1.75
777:1.50
758:1.35
739:1.20
720:1.00
701:0.90
684:(mm)
681:(in)
667:Size
366:Cross
348:types
208:6lobe
202:, is
97:JSTOR
83:books
2634:Torx
2611:2024
2568:2017
2512:2017
2482:2017
2402:2016
2376:2016
2293:2016
1942:link
1917:ISSN
1710:Spax
1680:M36
1670:E44
1665:M33
1655:E40
1650:M30
1640:E36
1625:E32
1620:M22
1610:E28
1593:E24
1588:M16
1576:E20
1571:M14
1559:E18
1543:E16
1538:M12
1526:E14
1509:E12
1498:9.3
1492:E10
1481:7.4
1466:6.1
1452:#10
1449:5.6
1432:4.7
1415:3.8
1401:SAE
1292:five
1191:E24
1157:T90
1152:E20
1137:T80
1132:E18
1117:T70
1112:E16
1097:T60
1092:E12
1077:T55
1072:E10
1057:T50
1041:T47
1022:T45
1002:T40
984:T35
964:T30
945:T27
925:T25
905:T20
886:T15
867:T10
525:Torx
225:and
184:star
149:Torx
69:news
1907:doi
1903:127
1632:1"
1504:M8
1475:E8
1460:E7
1455:M5
1443:E6
1438:M4
1435:#8
1426:E5
1421:M3
1418:#6
1409:E4
1367:An
1300:IPR
1298:or
1017:E8
997:E7
979:E6
940:E5
920:E4
848:T9
829:T8
810:T7
791:T6
786:E2
771:T5
752:T4
733:T3
714:T2
695:T1
648:SAE
453:Hex
300:or
286:hex
248:),
218:).
198:as
190:or
161:ɔːr
52:by
2646::
2528:.
2498:.
2443:.
2310:.
2241:^
2161:.
2035:^
2025:.
1968:^
1938:}}
1934:{{
1915:.
1901:.
1897:.
1871:.
1823:^
1712:.
1296:TS
1284:EP
1280:IP
1223:,
650:,
252:,
240:,
236:,
2613:.
2570:.
2538:.
2514:.
2484:.
2458:.
2429:.
2404:.
2378:.
2316:.
2295:.
2269:.
2197:.
2171:.
2147:.
2122:.
2097:.
2072:.
2029:.
2010:.
1996:.
1944:)
1930:.
1909::
1882:.
1857:.
1306:.
634:e
627:t
620:v
244:(
216:G
212:6
170:/
167:s
164:k
158:t
155:/
144:.
119:)
113:(
108:)
104:(
94:·
87:·
80:·
73:·
46:.
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
