160:
time, applications for helical coil inserts have come into broad usage in aerospace, automotive and industrial equipment. Usage originally included metric spark plus sizes that were delineated in Europe in the 1950s coming into inch using countries in the 1960s. ASME Subcommittee 29 of the B18 Committee put together the first version of a standard in 1993. In 2010, ANSI approved of recent revisions and ASME published a revision of B18.29.1 — Helical Coil Screw Thread
Inserts — Free Running and Screw Locking (Inch Series).
25:
159:
Here is some history as referenced in the forward of ASME B18.29.1. Helical coil screw thread inserts have been in use for many years. It was first invented in the 1930s and found initial acceptance in aircraft manufactured and serviced by the Allied Air Forces during World War II. Since that
42:
108:
89:
61:
46:
153:
68:
222:
182:
75:
57:
35:
133:
202:
141:
82:
144:
panel or to join two composite panels together. Metallic inserts are commonly used in the
137:
149:
216:
178:
164:
24:
174:
145:
16:
Pins, bolts, screws, joints and other structures used with composite panels
170:
129:
167:
are designed as inserts between metal bolts and soft plastic.
125:
18:
136:
and other structures that are used to transfer localized
49:. Unsourced material may be challenged and removed.
8:
185:as inserts between metal bolts and wood.
109:Learn how and when to remove this message
194:
7:
47:adding citations to reliable sources
203:"SI® Threaded Inserts for Plastic"
14:
152:industries to attach objects to
23:
34:needs additional citations for
1:
183:ready-to-assemble furniture
239:
58:"Insert" composites
43:improve this article
223:Composite materials
181:are often used in
154:sandwich composite
119:
118:
111:
93:
230:
207:
206:
199:
114:
107:
103:
100:
94:
92:
51:
27:
19:
238:
237:
233:
232:
231:
229:
228:
227:
213:
212:
211:
210:
201:
200:
196:
191:
115:
104:
98:
95:
52:
50:
40:
28:
17:
12:
11:
5:
236:
234:
226:
225:
215:
214:
209:
208:
193:
192:
190:
187:
163:Some kinds of
117:
116:
31:
29:
22:
15:
13:
10:
9:
6:
4:
3:
2:
235:
224:
221:
220:
218:
204:
198:
195:
188:
186:
184:
180:
176:
172:
168:
166:
161:
157:
155:
151:
147:
143:
139:
135:
131:
127:
123:
113:
110:
102:
91:
88:
84:
81:
77:
74:
70:
67:
63:
60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
197:
179:barrel bolts
169:
162:
158:
121:
120:
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
175:insert nuts
165:knurled nut
189:References
69:newspapers
146:aerospace
142:composite
128:, bolts,
99:July 2024
217:Category
156:panels.
122:Inserts
83:scholar
177:, and
171:T-nuts
150:marine
134:joints
130:screws
85:
78:
71:
64:
56:
140:to a
138:loads
90:JSTOR
76:books
148:and
126:pins
124:are
62:news
45:by
219::
173:,
132:,
205:.
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.