Split Lock Washers

Regular and metric split-lock washers, heavy split-lock washers and high collar split-lock washers are made from carbon steel, and our high-alloy lock washers are manufactured from AISI-4037 alloy steel. All are heat-treated to a Rockwell hardness of 38-46 C scale and manufactured according to the ASME B18.21.1 specification.

Regular and heavy lock washers are available in plain, mechanical zinc, or mechanical zinc/yellow finishes. High-alloy lock washers are available in mechanical zinc/yellow finish.

Regular Split Lock Washers

Bolt SizeSection WidthSection ThicknessApprox Lbs per M PcsApprox Carton Quantity
1/4.109.0622.222,500
5/16.125.0783.812,500
3/8.141.0946.08,000
7/16.156.1099.95,500
1/2.171.12512.93,750
9/16.188.14117.72,500
5/8.203.15624.02,000
3/4.234.18839.51,250
7/8.266.21959.5750
1.297.25088.0500

High Alloy Split Lock Washers

Bolt SizeSection WidthSection ThicknessApprox Lbs per M PcsApprox Carton Quantity
1/4.109.0622.222,500
5/16.125.0783.812,500
3/8.141.0946.08,000
7/16.156.1099.95,500
1/2.171.12512.93,750
9/16.188.14117.72,500
5/8.203.15624.02,000
3/4.234.18839.51,250
7/8.266.21959.5750
1.297.25088.0500

Heavy Split Lock Washers

Bolt SizeSection WidthSection ThicknessApprox Lbs per M PcsApprox Carton Quantity
1/4.110.0772.917,500
5/16.130.0975.010,000
3/8.145.1157.76,250
7/16.160.13311.54,250
1/2.176.15116.43,000
9/16.193.17022.02,125
5/8.210.18931.51,625
3/4.244.22651.7875
7/8.281.26678.8625
1.319.306116.0375

High Collar Split Lock Washers

Bolt SizeSection WidthSection ThicknessApprox Lbs per M PcsApprox Carton Quantity
1/4.047.0781.227,500
5/16.062.0932.017,500
3/8.076.1253.910,000
7/16.090.1406.24,500
1/2.103.1729.73,750
9/16.116.18713.43,000
5/8.125.20317.02,000
3/4.154.21827.41,250
7/8.182.23440.7750
1.208.25056.2500

Metric Split Lock Washers

Metric lock washers are manufactured to DIN 127 B specifications and made from carbon steel.

Metric lock washers are available as plain, mechanical zinc/chromate or mechanical zinc/dichromate.

Bolt SizeSection WidthSection ThicknessApprox Lbs per M PcsApprox Carton Quantity
M6.216.0712.222,500
M8.253.0793.812,500
M10.302.0876.28,000
M12.341.09712.35,000
M14.380.118163,000
M18.424.13824.82,000
M16.425.138222,000
M20.508.157351,250
M24.589.19760500