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.ThicknessWCL Part
Number
Cross
Reference
40.1160.1230.0190.2150.2250.015EXT-0112-02-001104-02
100.1950.1990.0310.3350.3450.017EXT-0190-03-001110-03
1/40.2570.2630.030.4280.440.017EXT-0250-02-001114-02
1/40.2560.2670.0260.3650.3750.02EXT-0250-05-001114-05
1/40.2460.250.0340.3650.3750.017EXT-0250-11-001114-11
1/40.2560.2670.0260.3650.3750.029EXT-0250-18-001114-18
3/80.380.3870.0340.550.5620.015EXT-0375-12-001120-12
5/80.6250.6350.0540.8390.8490.035EXT-0625-06-001128-06

Internal Type

Nominal
Washer
Size
Hole Dia. Min.Hole Dia. Max.Rim
Width
Outside Dia. Min.Outside Dia. Max.ThicknessWCL Part
Number
Cross
Reference
80.1680.1760.0230.30.3110.02INT-0164-05-001208-05
100.1950.2040.0230.30.3110.017INT-0190-06-001210-06
5/160.3140.3220.0250.4250.4350.022INT-0312-02-001218-02
5/160.3140.3220.0250.4250.4350.015INT-0312-04-001218-04
3/80.3770.3910.0320.4930.5070.022INT-0375-02-001220-02
3/80.410.4250.0480.5950.6150.022INT-0375-08-001220-08
3/80.380.3870.0450.5570.5670.025INT-0375-10-001220-10*
7/160.4390.4420.0250.5330.5470.022INT-0437-04-001222-04
1/20.5450.560.0550.7650.7850.025INT-0500-06-001224-06
1/20.5450.560.0550.7650.7850.03INT-0500-10-001224-10
9/160.5750.5850.0450.7630.7770.029INT-0562-03-001226-03
3/40.7570.760.0641.0471.0770.022INT-0750-04-001232-04
3/40.7750.7850.0641.0471.0770.022INT-0750-07-001232-07
13/160.8180.8280.0641.0471.0770.022INT-0812-03-001233-03
7/80.880.890.0431.081.110.02INT-0875-04-001234-04
11.011.020.0871.361.390.025INT-1000-05-001236-05
1-1/81.1631.1750.0451.4251.450.025INT-1125-08-001238-08
1-5/81.631.6450.0451.7971.8270.015INT-1625-02-001246-02
1-3/41.7681.790.1422.2192.2810.029INT-1750-01-001248-01
* Alt.Twisted Tooth Type