UNC/UNF ANSI B18.2.1, Stainless steel

An imperial hexagonal bolt or hex bolt as it's commonly known, manufactured to ANSI B18.2.1. This partially threaded bolt with a plain shank and hexagonal head is ideal for heavy duty fastening applications, and usually installed with a spanner or socket tool. Manufactured in A2 stainless steel often referred to as 304 or 18/8, the most commonly the most commonly used grade of stainless steel with excellent corrosion resistance for general purpose use.