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Thread-Locking Male-Female Threaded Hex Standoffs
A nylon patch bonded to the threads adds friction, preventing these standoffs from loosening from vibration. They’re reusable, but with each use they’ll have less holding power. Made of 18-8 stainless steel, they have good corrosion resistance, so they won’t corrode from frequent washdowns with harsh cleaners and sanitizers. They may be mildly magnetic. The flat sides of their hex are easy to grip with a wrench.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel—Inch
Thread (A) | Thread (B) | Each | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Size | Lg. | Size | Min. Lg. | Thread Locker Temp. Range, °F | Specifications Met | 1-9 | 10-Up | |
3/16" Hex Size | |||||||||
| 3/16" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 7/32" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 1/4" | 2-56 | 5/32" | 2-56 | 3/16" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 1/4" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 5/16" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 3/8" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 1/2" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 5/8" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 3/4" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 1" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
1/4" Hex Size | |||||||||
| 1/4" | 4-40 | 3/16" | 4-40 | 9/64" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1/4" | 6-32 | 1/4" | 6-32 | 7/64" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 3/8" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 3/8" | 6-32 | 1/4" | 6-32 | 15/64" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1/2" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1/2" | 6-32 | 1/4" | 6-32 | 23/64" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1/2" | 8-32 | 3/8" | 8-32 | 11/32" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 5/8" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 5/8" | 6-32 | 1/4" | 6-32 | 3/8" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 3/4" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 3/4" | 6-32 | 1/4" | 6-32 | 3/8" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1" | 4-40 | 3/16" | 4-40 | 1/4" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1" | 6-32 | 1/4" | 6-32 | 3/8" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1" | 8-32 | 3/8" | 8-32 | 7/16" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1 1/4" | 6-32 | 1/4" | 6-32 | 3/8" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1 1/4" | 8-32 | 3/8" | 8-32 | 7/16" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1 1/2" | 6-32 | 1/4" | 6-32 | 3/8" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 2" | 6-32 | 1/4" | 6-32 | 3/8" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
3/8" Hex Size | |||||||||
| 3/8" | 10-32 | 3/8" | 10-32 | 13/64" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1/2" | 10-32 | 3/8" | 10-32 | 21/64" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 3/4" | 10-32 | 3/8" | 10-32 | 1/2" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1" | 10-32 | 3/8" | 10-32 | 1/2" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 1 1/2" | 10-32 | 3/8" | 10-32 | 1/2" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 2" | 10-32 | 3/8" | 10-32 | 1/2" | -70° to 245° | ASTM A582 | 000000000 | 0000 | 0000 |
| 3" | 10-32 | 3/8" | 10-32 | 1/2" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
1/2" Hex Size | |||||||||
| 1/2" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 3/4" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 1" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 1 1/2" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 2" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 3" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 4" | 1/4"-20 | 1/2" | 1/4"-20 | 5/8" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 4" | 10-32 | 3/8" | 10-32 | 1/2" | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
18-8 Stainless Steel—Metric
Thread (A) | Thread (B) | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Size | Pitch, mm | Lg., mm | Size | Pitch, mm | Min. Lg., mm | Thread Locker Temp. Range, °F | Specifications Met | 1-9 | 10-Up | |
4.5 mm Hex Size | |||||||||||
| 5 | M2.5 | 0.45 | 4 | M2.5 | 0.45 | 2.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 5 | M3 | 0.5 | 4.8 | M3 | 0.5 | 2.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 6 | M2.5 | 0.45 | 4 | M2.5 | 0.45 | 3.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 6 | M3 | 0.5 | 4.8 | M3 | 0.5 | 3.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 8 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 10 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 12 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 16 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 20 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 30 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
6 mm Hex Size | |||||||||||
| 5 | M3 | 0.5 | 4.8 | M3 | 0.5 | 2.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 6 | M3 | 0.5 | 4.8 | M3 | 0.5 | 3.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 8 | M3 | 0.5 | 4.8 | M3 | 0.5 | 5.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 10 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 12 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 14 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 25 | M3 | 0.5 | 4.8 | M3 | 0.5 | 6.4 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 0000 |
8 mm Hex Size | |||||||||||
| 10 | M4 | 0.7 | 9.5 | M4 | 0.7 | 6.8 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 30 | M4 | 0.7 | 9.5 | M4 | 0.7 | 11.1 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 30 | M5 | 0.8 | 9.5 | M5 | 0.8 | 12.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
| 51 | M4 | 0.7 | 9.5 | M4 | 0.7 | 11.1 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 0000 |
10 mm Hex Size | |||||||||||
| 51 | M5 | 0.8 | 9.5 | M5 | 0.8 | 12.7 | -70° to 250° | ASTM A581 or A582 | 000000000 | 0000 | 0000 |
13 mm Hex Size | |||||||||||
| 20 | M6 | 1 | 12.7 | M6 | 1 | 16 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 25 | M6 | 1 | 12.7 | M6 | 1 | 16 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 30 | M6 | 1 | 12.7 | M6 | 1 | 16 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |
| 51 | M6 | 1 | 12.7 | M6 | 1 | 16 | -70° to 250° | ASTM A581 or A582 | 000000000 | 00000 | 00000 |