HAIYAN BOLT provide both carbon steel and stainless steel Square head bolt.
Square head bolt description:
Brand name: HB(HAIYAN BOLT)
Standard:JIS B1182, ANSI/ASME B 18.2.1 - 2012,BS916
Material Range: carbon steel, Alloy steel, stainless steel A2-304 and A4-316
Surface: zinc plated, plain, black oxide, nickel, decromet, HDG.
Processing: including cold headed and hot forging.
Supply Ability: 120Tons per Month.