Countersunk 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

 

Countersunk External Tooth Lock Washers create a ratchet action by biting into the screw head and the surface it contacts. They are used with standard 82° Flat and Oval head screws in countersunk holes.

Countersunk External Tooth Lock Washers

Description:

 

Size A B C D
  max min Ref. max min max min
#4 .123 .113 .213 .019 .015 .065 .050
#6 .150 .140 .289 .021 .017 .092 .082
#8 .177 .167 .322 .021 .017 .099 .083
#10 .205 .195 .354 .025 .020 .105 .088
#12 .231 .220 .421 .025 .020 .128 .113
1/4 .267 .255 .454 .025 .020 .128 .118
5/16 .333 .318 .599 .028 .023 .192 .165
3/8 .398 .383 .765 .034 .028 .255 .242
7/16 .463 .448 .867 .045 .037 .270 .260
1/2 .259 .512 .976 .045 .037 .304 .294