602-841-8100      sales@superiorbolt.com

Square Head Bolts

Square head bolts are externally threaded fasteners, generally made from low or medium carbon steel. They have square-shaped external wrenching heads, which offer a large bearing area for positive gripping.
Imperial
Sizes: ½” up to 3” diameter in lengths up to 30”
Grade: 2, 5 & 8, 304 x 316
Standard: ANSI B18.2.1
Metric
Sizes: 16mm up to 78mm diameter in lengths up to 600mm
Grade: 8.8, 10.9 & 12.9
Standard: DIN 478
Large Diameter Fasteners

3745 E. Wier Ave.
Phoenix, AZ 85040
Tel:  602-841-8100
Fax: 602-841-6700
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