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Square Head Machine Bolts

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Tensile Strength
3/8" 16UNC = 4250lbs (18.9kN)
1/2"-13UNC = 8500lbs (37.7kN)
5/8" - 11UNC = 13550lbs (60kN)
3/4" - 10UNC = 20050lbs (98kN)
7/8" - 9UNC = 27700lbs (123kN)
1" - 8UNC = 33500lbs (148.7kN)

Bolt/ nuts meet ANSI B18.2.1/B18.2.2
Hot Dip Galvanized per ASTM A153
nuts tapped after galvanizing
All Dim before galvanizing 

Add Suffix "C" for charpy level 1 compliance (20J@-20C)