Contact Apex Fasteners

APEX offers full-service design, engineering and manufacturing to your specifications. Our custom fasteners have enjoyed great success supplying all types and sizes of businesses in most sectors of industry.
Contact Apex Fasteners with your hardware requirements

Authorized Distributor for:

Product 3/3

 Previous 
 Return to the Product List 
 Next 

Lock Washer, Internal-External Tooth

tooth-lock-washers-external-internal.jpg
 Internal-External Tooth Lock Washers are ideal for electrical bonding. Hey are useful where a large bearing surface is desired or to span oversized or elongated holes. Also they can be used as an insert between two adjustable pieces to maintain their position after the original setting. Our lock washers meet all ASME standards in addition to RoHS and DFARS compliance when required. Internal-External tooth lock washers typically are available in steel and stainless steel materials.



Nominal Inside Outside Nominal

Screw Diameter Diameter Material
Basic Part Number Size Min. Max. Min. Max. Thickness
WLIE0.04.116.466.017 4 0.116 0.123 0.466 0.478 0.017
WLIE0.06.142.494.025 6 0.142 0.150 0.494 0.506 0.025
WLIE0.08.168.494.025 8 0.168 0.176 0.494 0.506 0.025
WLIE0.08.168.588.029 8 0.168 0.176 0.588 0.601 0.029
WLIE0.08.168.680.029 8 0.168 0.176 0.680 0.695 0.029
WLIE0.08.168.740.029 8 0.168 0.176 0.740 0.760 0.029
WLIE0.10.195.494.025 10 0.195 0.204 0.494 0.506 0.025
WLIE0.10.195.588.029 10 0.195 0.204 0.588 0.601 0.029
WLIE0.10.195.680.035 10 0.195 0.204 0.680 0.695 0.035
WLIE0.10.195.740.035 10 0.195 0.204 0.740 0.760 0.035
WLIE0.10.195.882.035 10 0.195 0.204 0.882 0.898 0.035
WLIE0.10.195.882.050 10 0.195 0.204 0.882 0.898 0.050
WLIE0.12.221.680.035 12 0.221 0.231 0.680 0.695 0.035
WLIE0.12.221.740.035 12 0.221 0.231 0.740 0.760 0.035
WLIE0.12.221.882.035 12 0.221 0.231 0.882 0.898 0.035
WLIE0.25.256.680.035 1/4 0.256 0.267 0.680 0.695 0.035
WLIE0.25.256.740.035 1/4 0.256 0.267 0.740 0.760 0.035
WLIE0.25.256.882.035 1/4 0.256 0.267 0.882 0.898 0.035
WLIE0.25.256.882.045 1/4 0.256 0.267 0.882 0.898 0.045
WLIE0.25.256.965.039 1/4 0.256 0.267 0.965 0.985 0.039
WLIE0.25.2561.045.039 1/4 0.256 0.267 1.045 1.070 0.039
WLIE0.31.320.882.035 5/16 0.320 0.332 0.882 0.898 0.035
WLIE0.31.320.965.039 5/16 0.320 0.332 0.965 0.985 0.039
WLIE0.31.320.965.050 5/16 0.320 0.332 0.965 0.985 0.050
WLIE0.31.3201.045.045 5/16 0.320 0.332 1.045 1.070 0.045
WLIE0.31.3201.130.045 5/16 0.320 0.332 1.130 1.155 0.045
WLIE0.31.3231.240.050 5/16 0.323 0.337 1.240 1.260 0.050
WLIE0.38.384.965.039 3/8 0.384 0.398 0.965 0.985 0.039
WLIE0.38.384.965.050 3/8 0.384 0.398 0.965 0.985 0.050
WLIE0.38.384.965.015 3/8 0.384 0.398 0.965 0.985 0.015
WLIE0.38.373.965.050 3/8 0.373 0.377 0.965 0.985 0.050
WLIE0.38.3841.045.045 3/8 0.384 0.398 1.045 1.070 0.045
WLIE0.38.3841.130.045 3/8 0.384 0.398 1.130 1.155 0.045
WLIE0.38.3841.240.050 3/8 0.384 0.398 1.240 1.260 0.050
WLIE0.43.4481.045.045 7/16 0.448 0.463 1.045 1.070 0.045
WLIE0.43.4481.130.045 7/16 0.448 0.463 1.130 1.155 0.045
WLIE0.43.4481.240.050 7/16 0.448 0.463 1.240 1.260 0.050
WLIE0.50.5121.380.055 1/2 0.512 0.529 1.380 1.410 0.055
WLIE0.50.5121.590.062 1/2 0.512 0.529 1.590 1.620 0.062
WLIE0.56.5761.380.055 9/16 0.576 0.594 1.380 1.410 0.055
WLIE0.63.6401.380.055 5/8 0.640 0.659 1.380 1.410 0.055
WLIE0.63.6401.590.062 5/8 0.640 0.659 1.590 1.620 0.062



Product 3/3

 Previous 
 Return to the Product List 
 Next 
APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
Tel: (626) 962-2219 - info@apexfasteners.com
Copyright © 2025 Apex Fasteners. Designed by Pope Productions