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WCL HOME > Lock Washers > Toothed Lock Washers
Nominal Inside Outside Nominal WCL
Screw Diameter Diameter Material Product
Size Min. Max. Min. Max. Thickness Plain Steel
4 0.116 0.123 0.466 0.478 0.017  EIT-0112-12-01  
6 0.142 0.150 0.494 0.506 0.025  EIT-0138-14-00  
8 0.168 0.176 0.494 0.506 0.025  EIT-0164-14-00  
8 0.168 0.176 0.588 0.601 0.029  EIT-0164-18-00  
8 0.168 0.176 0.680 0.695 0.029  EIT-0164-20-01  
8 0.168 0.176 0.740 0.760 0.029  EIT-0164-22-01  
10 0.195 0.204 0.494 0.506 0.025  EIT-0190-14-00  
10 0.195 0.204 0.588 0.601 0.029  EIT-0190-18-00  
10 0.195 0.204 0.680 0.695 0.035  EIT-0190-20-01  
10 0.195 0.204 0.740 0.760 0.035  EIT-0190-22-00  
10 0.195 0.204 0.882 0.898 0.035  EIT-0190-24-00  
10 0.192 0.196 0.880 0.900 0.022 EIT-0190-24-03 *
10 0.195 0.204 0.882 0.898 0.050 EIT-0190-24-04
12 0.221 0.231 0.680 0.695 0.035  EIT-0216-20-00  
12 0.221 0.231 0.740 0.760 0.035  EIT-0216-22-00  
12 0.221 0.231 0.882 0.898 0.035  EIT-0216-24-00  
1/4 0.256 0.267 0.680 0.695 0.035  EIT-0250-20-00  
1/4 0.256 0.267 0.680 0.695 0.035 EIT-0250-20-01
1/4 0.256 0.267 0.740 0.760 0.035  EIT-0250-22-00  
1/4 0.256 0.267 0.882 0.898 0.035  EIT-0250-24-00  
1/4 0.256 0.267 0.882 0.898 0.045  EIT-0250-24-01  
1/4 0.256 0.267 0.965 0.985 0.039  EIT-0250-00-01  
1/4 0.256 0.267  1.045    1.070   0.039  EIT-0250-28-00  
5/16 0.320 0.332 0.882 0.898 0.035  EIT-0312-24-00  
5/16 0.320 0.332 0.965 0.985 0.039  EIT-0312-26-00  
5/16 0.320 0.332 0.965 0.985 0.050 EIT-0312-26-01
5/16 0.320 0.332  1.045    1.070   0.045  EIT-0312-28-00  
5/16 0.320 0.332 1.130 1.155 0.045 EIT-0312-30-01
5/16 0.323 0.337  1.240    1.260   0.050  EIT-0312-32-00  
3/8 0.384 0.398 0.965 0.985 0.039  EIT-0375-26-00  
3/8 0.384 0.398 0.965 0.985 0.050  EIT-0375-26-01  
3/8 0.384 0.398 0.965 0.985 0.040 EIT-0375-26-02 **
3/8 0.384 0.398 0.965 0.985 0.015 EIT-0375-26-03
3/8 0.373 0.377 0.965 0.985 0.050 EIT-0375-26-04
3/8 0.384 0.398  1.045    1.070   0.045  EIT-0375-28-00  
3/8 0.384 0.398 1.130 1.155 0.045 EIT-0375-30-01
3/8 0.384 0.398  1.240    1.260   0.050  EIT-0375-32-00  
7/16 0.448 0.463  1.045    1.070   0.045  EIT-0437-28-00  
7/16 0.448 0.463  1.130    1.155   0.045  EIT-0437-30-00  
7/16 0.448 0.463  1.240    1.260   0.050  EIT-0437-32-00  
1/2 0.512 0.529 1.240  1.260   0.050 EIT-0500-32-00 ***  
1/2 0.512 0.529 1.240 1.260 0.050 EIT-0500-32-01 ***
1/2 0.512 0.529  1.380    1.410   0.055  EIT-0500-34-00  
1/2 0.512 0.529  1.590    1.620   0.062  EIT-0500-36-00  
9/16 0.576 0.594  1.380   1.410 0.055  EIT-0562-34-00  
5/8 0.640 0.659  1.380    1.410   0.055  EIT-0625-34-00  
5/8 0.640 0.659  1.590    1.620   0.062  EIT-0625-36-00  
* External Teeth Untwisted    ** Two External Teeth Omitted  *** Special Heat Treat

WCL Company • 16730 East Johnson Dr. • P.O. Box 3588 • Industry, CA 91744
Tel (626) 968-5523 • Fax (626) 369-9805 • We are Open 7am - 4:30pm, Pacific
WCL Company specializes in reliable low-cost, engineered high-performance fasteners, fittings, plastic components, washers, nuts, and a wide array of fastener components. WCL has 50 years of experience with all types of standard and engineered fasteners, and provides a comprehensive line of fastener products for sale from some of the world's leading manufacturers.
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