Filter by
Material
Washer Type
System of Measurement
ID
OD
Thickness
Performance
Specifications Met
Military Specification
DFARS Specialty Metals
REACH
RoHS
Export Control Classification Number (ECCN)
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 | 00000 | ||
| 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 | 00000 | ||
| 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 | ||
