Flex-Bolt® Sandwich Mounts (UNC Thread) Type 4

Flex-Bolt® Sandwich Mounts (UNC Thread) Type 4

Flex-Bolt® Sandwich Mounts are Manufactured by LORD Corporation.

Flex-Bolt® Sandwich Mounts are designed to protect equipment, machinery and sensitive components against damaging vibration. This family of mounts has excellent capacity for energy control. Constructed with high-strength bonds and specially compounded elastomers, these mounts provide high load carrying capacity and assure long life.

The simple design and unitized construction provide low-cost mounting systems which are compact, lightweight, easy to install and maintenance free.

If you don't see the size you need, contact us - we can help.
Item # Compression Static Load Compression - Spring Rate KC Shear Static Load Shear - Spring Rate KS A B C D Thread Size
J-5425-123
1670 lbs
7428 N
4125 lbs/in
722 N/mm
165 lbs
732 N
750 lbs/in
133 N/mm
3.12 in
0.53 in
2.25 in
0.53 in
1/2-20 UNC
J-5425-275
720 lbs
3203 N
1400 lbs/in
245 N/mm
110 lbs
489 N
260 lbs/in
46 N/mm
3.12 in
0.53 in
3 in
0.53 in
1/2-13 UNC
J-3424-21
549 lbs
2442 N
2410 lbs/in
422 N/mm
120 lbs
534 N
525 lbs/in
92 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
J-3424-3
417 lbs
1855 N
1830 lbs/in
320 N/mm
81 lbs
360 N
355 lbs/in
62 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
J-3424-80
382 lbs
1699 N
1675 lbs/in
293 N/mm
91 lbs
405 N
400 lbs/in
70 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
J-3424-2
278 lbs
1237 N
1220 lbs/in
214 N/mm
66 lbs
293 N
290 lbs/in
51 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
J-3424-6
274 lbs
1219 N
1200 lbs/in
210 N/mm
57 lbs
253 N
250 lbs/in
44 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
J-3424-30
259 lbs
1152 N
1685 lbs/in
295 N/mm
49 lbs
218 N
320 lbs/in
56 N/mm
2 in
0.4 in
1.75 in
0.4 in
1/2-13 UNC
J-3424-5
205 lbs
912 N
900 lbs/in
158 N/mm
38 lbs
169 N
165 lbs/in
29 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
J-3424-8
208 lbs
925 N
635 lbs/in
111 N/mm
36 lbs
160 N
110 lbs/in
19 N/mm
2 in
0.4 in
2.62 in
0.4 in
1/2-13 UNC
J-3424-49
184 lbs
818 N
455 lbs/in
80 N/mm
30 lbs
133 N
75 lbs/in
13 N/mm
2 in
0.4 in
3 in
0.4 in
1/2-13 UNC
J-3424-143
130 lbs
578 N
650 lbs/in
114 N/mm
23 lbs
102 N
115 lbs/in
20 N/mm
2 in
0.4 in
2.12 in
0.4 in
1/2-13 UNC
If you need rubber, we’ll have it. If we don’t have it, we’ll find it. If we can’t find it, we’ll make it.