External Type
Recommended for maximum torsional resistance.lw32-1
Internal Type
Recommended where appearance or snagging are prime considerations.lw32-2
  • Small O.D. in relation to I.D.
  • Use with small headed screws and special narrow-rimmed nuts.
  • Ideal where clearance or appearance may be a factor.

External Type

Nominal
Washer
Size
Hole Dia. Min. Hole Dia. Max. Rim
Width
Outside Dia. Min. Outside Dia. Max. Thickness WCL Part
Number
Cross
Reference
4 0.116 0.123 0.019 0.215 0.225 0.015 EXT-0112-02-00 1104-02
10 0.195 0.199 0.031 0.335 0.345 0.017 EXT-0190-03-00 1110-03
1/4 0.257 0.263 0.03 0.428 0.44 0.017 EXT-0250-02-00 1114-02
1/4 0.256 0.267 0.026 0.365 0.375 0.02 EXT-0250-05-00 1114-05
1/4 0.246 0.25 0.034 0.365 0.375 0.017 EXT-0250-11-00 1114-11
1/4 0.256 0.267 0.026 0.365 0.375 0.029 EXT-0250-18-00 1114-18
3/8 0.38 0.387 0.034 0.55 0.562 0.015 EXT-0375-12-00 1120-12
5/8 0.625 0.635 0.054 0.839 0.849 0.035 EXT-0625-06-00 1128-06

Internal Type

Nominal
Washer
Size
Hole Dia. Min. Hole Dia. Max. Rim
Width
Outside Dia. Min. Outside Dia. Max. Thickness WCL Part
Number
Cross
Reference
8 0.168 0.176 0.023 0.3 0.311 0.02 INT-0164-05-00 1208-05
10 0.195 0.204 0.023 0.3 0.311 0.017 INT-0190-06-00 1210-06
5/16 0.314 0.322 0.025 0.425 0.435 0.022 INT-0312-02-00 1218-02
5/16 0.314 0.322 0.025 0.425 0.435 0.015 INT-0312-04-00 1218-04
3/8 0.377 0.391 0.032 0.493 0.507 0.022 INT-0375-02-00 1220-02
3/8 0.41 0.425 0.048 0.595 0.615 0.022 INT-0375-08-00 1220-08
3/8 0.38 0.387 0.045 0.557 0.567 0.025 INT-0375-10-00 1220-10*
7/16 0.439 0.442 0.025 0.533 0.547 0.022 INT-0437-04-00 1222-04
1/2 0.545 0.56 0.055 0.765 0.785 0.025 INT-0500-06-00 1224-06
1/2 0.545 0.56 0.055 0.765 0.785 0.03 INT-0500-10-00 1224-10
9/16 0.575 0.585 0.045 0.763 0.777 0.029 INT-0562-03-00 1226-03
3/4 0.757 0.76 0.064 1.047 1.077 0.022 INT-0750-04-00 1232-04
3/4 0.775 0.785 0.064 1.047 1.077 0.022 INT-0750-07-00 1232-07
13/16 0.818 0.828 0.064 1.047 1.077 0.022 INT-0812-03-00 1233-03
7/8 0.88 0.89 0.043 1.08 1.11 0.02 INT-0875-04-00 1234-04
1 1.01 1.02 0.087 1.36 1.39 0.025 INT-1000-05-00 1236-05
1-1/8 1.163 1.175 0.045 1.425 1.45 0.025 INT-1125-08-00 1238-08
1-5/8 1.63 1.645 0.045 1.797 1.827 0.015 INT-1625-02-00 1246-02
1-3/4 1.768 1.79 0.142 2.219 2.281 0.029 INT-1750-01-00 1248-01
* Alt.Twisted Tooth Type