lw21-1

Materials: Part numbers shown are for washers made of spring steel. These washers are also available in bronze and bronze alloy and in 400 series stainless steel. Many of these are in stock at WCL. Washers can also be produced from 300 series stainless steel and other materials on request. Specify material when inquiring or ordering.

Specifications: All commercial and military tooth lockwashers supplied by WCL Company and listed on these pages conform to ASME B18.21.1 and to all applicable specifications as reported by IFI.

  • Provide maximum torsional resistance.
  • Work best with larger head screws (round, pan, binding, etc.)
Nominal
Washer
Size
Hole
Diameter
Min.
Hole
Diameter
Max.
Outside
Diameter
Min.
Outside
Diameter
Max.
ThicknessWCL Part
Number
Cross
Reference
Steel
Plated
MS35335
Stainless
Steel
MS35335
Bronze
Alloy
MS35335
20.0890.0950.2750.2850.017EXT-0086-01-001102-01
30.1020.1090.220.2350.013EXT-0099-00-001103-00
40.1150.1230.2450.260.015EXT-0112-00-001104-00-29-57-85
40.1160.1230.2750.2850.015EXT-0112-01-001104-01
40.1160.1230.2150.2250.015EXT-0112-02-001104-02
50.1290.1360.270.2850.015EXT-0125-00-001105-00
60.1410.150.3050.320.02EXT-0138-00-001106-00-30-58-86
60.1420.150.370.3810.022EXT-0138-01-001106-01
60.150.1420.3060.3170.017EXT-0138-05-001106-05
80.1680.1760.3650.3810.02EXT-0164-00-001108-00-31-59-87
80.1680.1760.370.3810.025EXT-0164-01-001108-01
80.1680.1760.680.6950.039EXT-0164-02-001108-02
80.1680.1760.4940.5060.02EXT-0164-05-001108-05
80.1680.1760.4940.5060.022EXT-0164-08-001108-08
80.1650.170.3060.3170.02EXT-0164-11-001108-11
100.1950.2040.3950.410.022EXT-0190-00-001110-00-32-60-88
100.1950.1990.3350.3450.017EXT-0190-03-001110-03
100.1950.2040.3950.4060.029EXT-0190-04-001110-04
100.1950.2040.4940.5060.025EXT-0190-07-001110-07
120.2210.2310.460.4750.025EXT-0216-00-001112-00
120.2180.2240.3950.4060.022EXT-0216-05-001112-05
1/40.2560.2670.4940.510.025EXT-0250-00-001114-00-33-61-89
1/40.2570.2630.4280.440.017EXT-0250-02-001114-02
1/40.2560.2670.8820.8980.045EXT-0250-04-001114-04
1/40.2560.2670.3650.3750.02EXT-0250-05-001114-05
1/40.2560.2670.680.6950.039EXT-0250-09-001114-09
1/40.2460.250.3650.3750.017EXT-0250-11-001114-11
1/40.2560.2670.8820.8980.039EXT-0250-16-001114-16
1/40.2560.2670.3650.3750.029EXT-0250-18-001114-18
5/160.320.3320.5880.610.029EXT-0312-00-001118-00-34-62-90
5/160.320.3320.680.6950.035EXT-0312-02-001118-02
5/160.3530.3570.640.6540.035EXT-0312-11-001118-11
3/80.3840.3980.670.6940.035EXT-0375-00-001120-00-35-63-91
1/8 Pipe0.4060.420.680.6950.035EXT-0375-01-001120-01
3/80.3840.3980.8830.8980.039EXT-0375-06-001120-06
3/80.3840.3980.6150.6350.035EXT-0375-08-001120-08
3/80.3840.3981.241.260.035EXT-0375-09-001120-09
3/80.380.3870.550.5620.015EXT-0375-12-001120-12
7/160.4480.4640.740.760.035EXT-0437-00-001122-00-36-64-92
7/160.4680.4880.740.760.035EXT-0437-09-001122-09
1/20.5130.530.8820.90.039EXT-0500-00-001124-00-37-65-93
1/20.5120.5291.381.410.055EXT-0500-01-001124-01
1/20.5120.5290.8820.8980.05EXT-0500-06-001124-06
9/160.5760.5960.960.9850.039EXT-0562-00-001126-00-38-66-94
5/80.6410.6631.0451.070.045EXT-0625-00-001128-00-39-67-95
5/80.6250.6350.8390.8490.035EXT-0625-06-001128-06
11/160.690.6960.9140.9220.035EXT-0687-05-001130-05
3/40.7680.791.221.260.05EXT-0750-00-001132-00-40-68-96
7/80.8970.9271.381.410.055EXT-0875-00-001134-00**-41-69-97
11.0251.061.591.620.062EXT-1000-00-001136-00-42-70-98
1-1/81.1281.1421.7971.8270.062EXT-1125-03-001138-03
1-1/41.2691.2932.1722.2020.062EXT-1250-01-001140-01
1.56251.561.582.3592.3920.094EXT-1562-01-001145-01
2-3/42.82.8253.493.510.078EXT-2750-01-001164-01
2-3/42.82.8253.493.510.078EXT-2750-02-001164-02*
* Left Hand Twist
**Type B option also stocked

 

Type “B” Tooth Form

lw21-1The Type “B” is listed as an alternative tooth form in ASME B18.21.1 Military Standards, S.A.E., etc. It is available for many of the styles and sizes of tooth washers shown in this catalog, including external, internal, external-internal and many others. To order, specify the WCL part number and designate “Type B” for example: 1114-00 Type B.