... socket head, pan head, countersunk head Stainless Allen Bolts 1.Size and type: Hexagon Bolt: M6-M64 ... AL6XN, 1.4501,1.4529.4.Standards: GB , DIN, JIS, AISI/ASTM/ANSI/AMSE and BS EN, etc ... samples and Trial orderIntroduction Our company is located in Jining City Shandong Province, which is one of ... biggest Chinese construction machinery bases. We are engaged in the manufacture and trade, with high quality ...