7/8-14 x 2 1/4 Socket Cap Screw Alloy 5/8-11 A307 Grade A Carriage Bolts Hot Dipped Galvanized Typical hardness on diameters 1/4

Description

Typical hardness on diameters 1/4 to 2 1/2 inches is HRC 33-39

5/16-18 x 9 Socket Cap Screw Alloy

7/8-14 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated

1008-1010 for sizes up to 1 inch (cold-formed) and 1045 steel for sizes over 1 inch (hot-formed)

#55 Heavy Duty Jobber Drill Bit

7/8-14 x 2 1/4 Socket Cap Screw Alloy 5/8-11 A307 Grade A Carriage Bolts Hot Dipped Galvanized Typical hardness on diameters 1/47 8 14 x 2 1 4 Socket Cap Screw Alloy . Alloy Socket Head Cap Screws from Brighton Best. Hardness of RC 38 43, meets or exceeds ASTM A574. Manufactured from heat treated alloy steel, 1960 series.

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