ASTM F436 Structural Washers

ASTM F436 Structural Type 1

Available in 1/2″ through 2″ bolt sizes as outlined in ASTM F436. Complete certifications are standard with F436 structural product, which includes material grade (chemistry) and hardness. Wrought requires certification from its vendors that steel used to manufacture washers is melted and manufactured in the U.S. All sizes are stocked in plain, mechanical galvanized and hot-dipped galvanized.

Bolt SizeOutside DiameterInside DiameterThicknessApprox Lbs per M PcsApprox Pcs per Carton
1/21.063.531.097/.17720.02,500
5/81.313.688.122/.17735.01,250
3/41.469.813.122/.17741.21,125
7/81.750.938.136/.17771.0625
12.0001.063.136/.17793.8500
1-1/82.2501.188.136/.177120375
1-1/42.5001.375.136/.177144300
1-3/82.7501.531.136/.177174275
1-1/23.0001.625.136/.177208250
1-5/83.2501.770.178/.280311150
1-3/43.3751.875.178/.280328130
1-7/83.5002.000.178/.280345135
23.7502.125.178/.280398100
2-1/44.0002.407.240/.34056860
2-1/24.5002.657.240/.34073430
2-3/45.0002.907.240/.34092130
35.5003.157.240/.340112930


ASTM F436 Structural Type 3 Weathering

Available in 5/8″ through 1-1/4″ bolt sizes to weathering specification as outlined in ASTM F436. Wrought requires certification from its vendors that steel used to manufacture washers is melted and manufactured in the U.S.

Bolt SizeOutside DiameterInside DiameterThicknessApprox Lbs per M PcsApprox Pcs per Carton
5/81.313.688.122/.17741.01250
3/41.469.813.122/.17750.01125
7/81.750.938.136/.17772.0625
12.00001.063.136/.17793.8500
1-1/82.2501.188.136/.177116375
1-1/42.5001.375.136/.177144300
1-1/23.0001.656.136/.177206250

Beveled Structural Washers

Available in 1/2″ through 1″ bolt sizes as outlined in ASTM F436. Wrought requires certification from its vendors that steel used to manufacture washers is melted and manufactured in the U.S. All sizes are stocked in plain, mechanical galvanized and hot-dipped galvanized.

Bolt SizeOutside DiameterSlopeApprox Lbs per M PcsApprox Pcs per Carton
1/21.75016-2/3%251200
5/81.75016-2/3%237250
3/41.75016-2/3%224250
7/81.75016-2/3%209250
11.75016-2/3%181250

5/16″ Thick Hardened Structural Washers

Hardened structural washers are used for special construction applications. 1″ through 1-1/2″ bolt sizes are stocked and sold with full product certifications.

Bolt SizeOutside DiameterInside DiameterThicknessApprox Lbs per M PcsApprox Pcs per Carton
12.0001.063.312196250
1-1/82.2501.188.312252200
1-1/42.5001.375.312303175
1-1/23.0001.625.31244280