Lock Washers Internal Tooth

Inch

Also Available in Metric
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Part Desc. Washer SizeMaterialFinish
General
Thread
Code
Nominal
Washer
Size
T
Thickness
A
Inside
Diameter
B
Outside
Diameter
#2 2 - .086 .016 / .010 .095 / .089 .200 / .175
#3 3 - .099 .016 / .010 .109 / .102 .232 / .215
#4 4 - .112 .018 / .012 .123 / .115 .270 / .245
#5 5 - .125 .020 / .014 .136 / .129 .280 / .255
#6 6 - .138 .022 / .016 .150 / .141 .295 / .275
#8 8 - .164 .023 / .018 .176 / .168 .340 / .325
#10 10 - .190 .024 / .018 .204 / .195 .381 / .365
#12 12 - .216 .027 / .020 .231 / .221 .410 / .394
#1/4 1/4 - .250 .028 / .023 .267 / .256 .478 / .460
#5/16 5/16 - .3125 .034 / .028 .332 / .320 .610 / .594
#3/8 3/8 - .375 .040 / .032 .398 / .384 .692 / .670
#7/16 7/16 - .4375 .040 / .032 .464 / .448 .789 / .740
#1/2 1/2 - .500 .045 /.037 .530 / .512 .900 / .867
#9/16 9/16 - .5625 .045 / .037 .596 / .576 .985 / .957
#5/8 5/8 - .625 .050 / .042 .663 / .640 1.071 / 1.045
#11/16 11/16 - .6875 .050 / .042 .728 / .704 1.166 / 1.130
#3/4 3/4 - .750 .055 / .047 .795 / .769 1.245 / 1.220