Grade 8 Steel Square-Neck Carriage Bolt

MPN 21A918 Steel Bolts

This is a Grade 8 steel square-neck carriage bolt with a semi-round head. The Grade 8 rating indicates its high strength. It is typically used in wood or metal fastening where a smooth, finished appearance is desired on one side.

Specifications

Grade	8
Head Style	Semi-round
Neck Style	Square

About bolts

Grade 8 Steel Square-Neck Carriage Bolt is listed under Bolts — hex, carriage, structural, eye and u-bolts across grades and finishes. Bolts are externally threaded fasteners designed for insertion through holes in assembled parts, and are normally intended to be tightened or released by torquing a nut. The primary function of a bolt is to create a clamped joint through tension.

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