Filter by
Material
Screw Size
ID
OD
Thickness
Performance
Specifications Met
DFARS Specialty Metals
RoHS
Export Control Classification Number (ECCN)
Military Specification
Number of Waves
Split Lock Washers
 |
Stop nuts and screws from loosening due to mild vibration. As you tighten, the uneven ends bite into the nut or screw so it won't back out. While they're not as vibration resistant as other lock washers, they are a great fit for electrical panels, light fixtures, and other light duty assemblies. Split lock washers are not reusable, and they only work with fasteners that have right-hand threads.
Highly Corrosion-Resistant Silicon Bronze—The choice for marine environments, these washers won't rust or deteriorate when submerged in salt water. They resist corrosion as well as 316 stainless steel, but are not quite as strong.
For Screw Size | ID | OD | Thk. | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
Highly Corrosion-Resistant Silicon Bronze | |||||||||
| No. 2 | 0.094" | 0.172" | 0.020" | ASME B18.21.1 | 100 | 93496A403 | 00000 | ||
| No. 3 | 0.107" | 0.195" | 0.025" | ASME B18.21.1 | 100 | 93496A404 | 0000 | ||
| No. 4 | 0.120" | 0.209" | 0.025" | ASME B18.21.1 | 100 | 93496A405 | 0000 | ||
| No. 4 | 0.120" | 0.209" | 0.025" | ASME B18.21.1 | 1,000 | 93496A005 | 00000 | ||
| No. 6 | 0.148" | 0.250" | 0.031" | ASME B18.21.1 | 100 | 93496A407 | 0000 | ||
| No. 6 | 0.148" | 0.250" | 0.031" | ASME B18.21.1 | 1,000 | 93496A007 | 00000 | ||
| No. 8 | 0.174" | 0.293" | 0.040" | ASME B18.21.1 | 100 | 93496A409 | 0000 | ||
| No. 8 | 0.174" | 0.293" | 0.040" | ASME B18.21.1 | 1,000 | 93496A009 | 00000 | ||
| No. 10 | 0.200" | 0.334" | 0.047" | ASME B18.21.1 | 100 | 93496A415 | 0000 | ||
| No. 12 | 0.227" | 0.377" | 0.056" | ASME B18.21.1 | 100 | 93496A418 | 00000 | ||
| 1/4" | 0.260" | 0.487" | 0.062" | ASME B18.21.1 | 100 | 93496A029 | 00000 | ||
| 5/16" | 0.322" | 0.583" | 0.078" | ASME B18.21.1 | 50 | 93496A030 | 00000 | ||
| 3/8" | 0.385" | 0.680" | 0.094" | ASME B18.21.1 | 25 | 93496A031 | 00000 | ||
| 7/16" | 0.450" | 0.776" | 0.109" | ASME B18.21.1 | 10 | 93496A432 | 0000 | ||
| 1/2" | 0.512" | 0.869" | 0.125" | ASME B18.21.1 | 10 | 93496A433 | 0000 | ||
| 5/8" | 0.641" | 1.073" | 0.156" | ASME B18.21.1 | 5 | 93496A435 | 0000 | ||
| 3/4" | 0.766" | 1.265" | 0.188" | ASME B18.21.1 | 5 | 93496A436 | 00000 | ||
| 1" | 1.024" | 1.656" | 0.250" | ASME B18.21.1 | 5 | 93496A445 | 00000 | ||
| M3 | 3.4 mm | 6.2 mm | 0.7 mm to 0.9 mm | DIN 127B | 100 | 97093A201 | 00000 | ||
| M4 | 4.4 mm | 7.6 mm | 0.8 mm to 1.0 mm | DIN 127B | 100 | 97093A202 | 00000 | ||
| M5 | 5.4 mm | 9.2 mm | 1.1 mm to 1.3 mm | DIN 127B | 100 | 97093A203 | 00000 | ||
| M6 | 6.5 mm | 11.8 mm | 1.5 mm to 1.7 mm | DIN 127B | 50 | 97093A204 | 00000 | ||
| M8 | 8.5 mm | 14.8 mm | 1.9 mm to 2.1 mm | DIN 127B | 25 | 97093A205 | 00000 | ||
| M10 | 10.7 mm | 18.1 mm | 2.0 mm to 2.4 mm | DIN 127B | 10 | 97093A206 | 0000 | ||
Tooth Lock Washers
External Tooth
 |
For Screw Size | ID | OD | Thk. | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
Highly Corrosion-Resistant Phosphor Bronze | |||||||||
| No. 3 | 0.102" | 0.235" | 0.010" to 0.016" | ASME B18.21.1 | 100 | 92164A333 | 00000 | ||
| No. 4 | 0.115" | 0.260" | 0.012" to 0.018" | ASME B18.21.1 | 100 | 92164A005 | 0000 | ||
| No. 6 | 0.141" | 0.320" | 0.016" to 0.022" | ASME B18.21.1 | 100 | 92164A007 | 0000 | ||
| No. 8 | 0.168" | 0.381" | 0.018" to 0.023" | ASME B18.21.1 | 100 | 92164A009 | 0000 | ||
| No. 10 | 0.195" | 0.410" | 0.018" to 0.024" | ASME B18.21.1 | 100 | 92164A011 | 0000 | ||
| No. 12 | 0.221" | 0.475" | 0.020" to 0.027" | ASME B18.21.1 | 100 | 92164A334 | 0000 | ||
| 1/4" | 0.256" | 0.510" | 0.023" to 0.028" | ASME B18.21.1 | 100 | 92164A029 | 00000 | ||
| 5/16" | 0.320" | 0.610" | 0.028" to 0.034" | ASME B18.21.1 | 50 | 92164A030 | 0000 | ||
| 3/8" | 0.384" | 0.694" | 0.032" to 0.040" | ASME B18.21.1 | 25 | 92164A031 | 0000 | ||
| 7/16" | 0.448" | 0.760" | 0.032" to 0.040" | ASME B18.21.1 | 25 | 92164A032 | 0000 | ||
| 1/2" | 0.513" | 0.900" | 0.037" to 0.045" | ASME B18.21.1 | 25 | 92164A033 | 00000 | ||
| 5/8" | 0.641" | 1.070" | 0.042" to 0.050" | ASME B18.21.1 | 10 | 92164A040 | 00000 | ||
| 3/4" | 0.768" | 1.260" | 0.047" to 0.055" | ASME B18.21.1 | 5 | 92164A335 | 0000 | ||
Internal Tooth
 |
For Screw Size | ID | OD | Thk. | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|
Highly Corrosion-Resistant Phosphor Bronze | |||||||||
| No. 2 | 0.089" | 0.200" | 0.010" to 0.016" | ASME B18.21.1 | 100 | 92165A002 | 00000 | ||
| No. 3 | 0.109" | 0.232" | 0.010" to 0.016" | ASME B18.21.1 | 100 | 92165A121 | 0000 | ||
| No. 4 | 0.115" | 0.270" | 0.012" to 0.018" | ASME B18.21.1 | 100 | 92165A005 | 0000 | ||
| No. 5 | 0.136" | 0.280" | 0.014" to 0.018" | ASME B18.21.1 | 100 | 92165A122 | 0000 | ||
| No. 6 | 0.141" | 0.295" | 0.016" to 0.022" | ASME B18.21.1 | 100 | 92165A007 | 0000 | ||
| No. 8 | 0.168" | 0.340" | 0.018" to 0.023" | ASME B18.21.1 | 100 | 92165A009 | 0000 | ||
| No. 10 | 0.195" | 0.381" | 0.018" to 0.024" | ASME B18.21.1 | 100 | 92165A011 | 0000 | ||
| No. 12 | 0.231" | 0.410" | 0.020" to 0.027" | ASME B18.21.1 | 100 | 92165A123 | 0000 | ||
| 1/4" | 0.256" | 0.478" | 0.023" to 0.028" | ASME B18.21.1 | 100 | 92165A029 | 00000 | ||
| 5/16" | 0.320" | 0.610" | 0.028" to 0.034" | ASME B18.21.1 | 50 | 92165A030 | 0000 | ||
| 3/8" | 0.384" | 0.692" | 0.032" to 0.040" | ASME B18.21.1 | 50 | 92165A031 | 00000 | ||
| 7/16" | 0.448" | 0.789" | 0.032" to 0.040" | ASME B18.21.1 | 25 | 92165A032 | 0000 | ||
| 1/2" | 0.512" | 0.900" | 0.037" to 0.045" | ASME B18.21.1 | 25 | 92165A033 | 00000 | ||
| 5/8" | 0.640" | 1.071" | 0.042" to 0.050" | ASME B18.21.1 | 5 | 92165A055 | 0000 | ||
| 3/4" | 0.795" | 1.245" | 0.047" to 0.055" | ASME B18.21.1 | 5 | 92165A124 | 0000 | ||
Mil. Spec. Tooth Lock Washers
External Tooth
 |
Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding head screws.
Highly Corrosion-Resistant Phosphor Bronze—Stronger and more wear resistant than silicon bronze, but with the same excellent corrosion resistance. These washers won't rust or deteriorate when submerged in salt water, so they're a good fit for marine environments.
For Screw Size | ID | OD | Thk. | Mil. Spec. | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Highly Corrosion-Resistant Phosphor Bronze | ||||||||||
| No. 10 | 0.195" | 0.410" | 0.020" to 0.025" | MS35335-88 | ASME B18.21.1 | 25 | 97775A534 | 00000 | ||
| 1/4" | 0.256" | 0.510" | 0.023" to 0.028" | MS35335-89 | ASME B18.21.1 | 10 | 97775A535 | 0000 | ||
| 5/16" | 0.320" | 0.610" | 0.028" to 0.034" | MS35335-90 | ASME B18.21.1 | 10 | 97775A536 | 0000 | ||
| 3/8" | 0.384" | 0.694" | 0.032" to 0.040" | MS35335-91 | ASME B18.21.1 | 10 | 97775A537 | 0000 | ||
| 1/2" | 0.513" | 0.900" | 0.037" to 0.045" | MS35335-93 | ASME B18.21.1 | 10 | 97775A538 | 0000 | ||
Internal Tooth
 |
Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
Highly Corrosion-Resistant Phosphor Bronze—Stronger and more wear resistant than silicon bronze, but with the same excellent corrosion resistance. These washers won't rust or deteriorate when submerged in salt water, so they're a good fit for marine environments.
For Screw Size | ID | OD | Thk. | Mil. Spec. | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|
Highly Corrosion-Resistant Phosphor Bronze | ||||||||||
| No. 2 | 0.089" | 0.200" | 0.010" to 0.015" | MS35333-103, NASM35333 | ASME B18.21.1 | 25 | 96551A340 | 00000 | ||
| No. 4 | 0.115" | 0.270" | 0.015" to 0.019" | MS35333-104, NASM35333 | ASME B18.21.1 | 25 | 96551A350 | 0000 | ||
| No. 6 | 0.141" | 0.295" | 0.017" to 0.021" | MS35333-105, NASM35333 | ASME B18.21.1 | 25 | 96551A360 | 00000 | ||
| No. 8 | 0.168" | 0.340" | 0.018" to 0.023" | MS35333-106, NASM35333 | ASME B18.21.1 | 25 | 96551A370 | 00000 | ||
| No. 10 | 0.195" | 0.381" | 0.020" to 0.025" | MS35333-107, NASM35333 | ASME B18.21.1 | 25 | 96551A380 | 00000 | ||
| 1/4" | 0.256" | 0.478" | 0.023" to 0.028" | MS35333-108, NASM35333 | ASME B18.21.1 | 25 | 96551A390 | 00000 | ||
| 5/16" | 0.332" | 0.610" | 0.028" to 0.034" | MS35333-109, NASM35333 | ASME B18.21.1 | 10 | 96551A400 | 0000 | ||
| 3/8" | 0.384" | 0.692" | 0.032" to 0.040" | MS35333-110, NASM35333 | ASME B18.21.1 | 10 | 96551A410 | 0000 | ||
| 1/2" | 0.512" | 0.900" | 0.037" to 0.045" | MS35333-113, NASM35333 | ASME B18.21.1 | 5 | 96551A420 | 0000 | ||
Wave Spring Lock Washers
 |
For Screw Size | No. of Waves | ID, mm | OD, mm | Thk., mm | Overall Ht., mm | Specs. Met | Pkg. Qty. | Pkg. | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Highly Corrosion-Resistant Phosphor Bronze | |||||||||||
| M3 | 1 | 3.2 | 8.0 | 0.5 | 1.6 | DIN 137B | 25 | 90394A111 | 000000 | ||
| M4 | 1 | 4.3 | 9.0 | 0.5 | 2.0 | DIN 137B | 25 | 90394A112 | 00000 | ||
| M5 | 1 | 5.3 | 11.0 | 0.5 | 2.2 | DIN 137B | 10 | 90394A113 | 0000 | ||
| M6 | 1 | 6.4 | 12.0 | 0.5 | 2.6 | DIN 137B | 10 | 90394A114 | 0000 | ||
| M8 | 1 | 8.4 | 15.0 | 0.8 | 3.0 | DIN 137B | 5 | 90394A115 | 0000 | ||
| M10 | 1 | 10.5 | 21.0 | 1.0 | 4.2 | DIN 137B | 1 | 90394A116 | 0000 | ||
| M12 | 1 | 13.0 | 24.0 | 1.2 | 5.0 | DIN 137B | 1 | 90394A117 | 0000 | ||
