External Tooth Lock Washers

DEFAULT SPECIFICATIONS

Brand HJ Tech
Standard  
Material Carbon Steel/Stainless Steel
Finish Plain/Self Colour (S/C)/Black Oxide (Black)/Polished
Size #6-1"  

 

FEATURES

 

External Tooth Lock Washers create a ratchet action by biting into the nut or screw head and the surface it contacts. When used under a screw head, the "external" type require a large head—like Binding, Pan or Round—because the washer teeth must make contact with the head. Since the teeth are on the largest radius, which results in greater twisting resistance, this type is preferred when the greatest locking power is desired.

External Tooth Lock Washers

Description:

size d dc t
  max min max min max min
No.3 .109 .102 .235 .220 .016 .010
No.4 .123 .115 .260 .245 .018 .012
No.5 .136 .129 .285 .270 .020 .014
No.6 .150 .141 .320 .305 .022 .016
No.8 .176 .168 .381 .365 .023 .018
No.10 .204 .195 .410 .395 .024 .018
No.12 .231 .221 .475 .460 .027 .020
1/4 .267 .256 .510 .494 .028 .023
5/16 .332 .320 .610 .588 .034 .028
3/8 .398 .384 .694 .670 .040 .032
7/16 .464 .448 .760 .740 .040 .032
1/2 .530 .513 .900 .880 .045 .037
9/16 .596 .576 .985 .960 .045 .037
5/8 .663 .641 1.070 1.045 .050 .042
3/4 .795 .768 1.260 1.220 .055 .047
7/8 .927 .897 1.410 1.380 .060 .052
1 1.060 1.025 1.620 1.590 0.67 .059
1 1/8 1.142 1.128 1.827 1.797 .067 .059
1 1/4 1.293 1.269 2.202 2.172 .067 .059
1 1/2 1.580 1.560 2.392 2.359 .099 .091