Hex head bolts with a hexagonal outer head for tightening with a spanner or socket wrench. Offered in full-thread (DIN 933 / GB/T 5783) and partial-thread (DIN 931 / GB/T 5782) versions; ASME B18.2.1 is also cited in the product title.

Available strength grades are 4.8, 8.8, 10.9 and 12.9 in carbon steel, alloy steel or stainless steel. Surface finishes include black oxide, galvanizing and hot-dip galvanizing. Common applications include machinery, construction, vehicle manufacture and equipment assembly. Please confirm diameter, length, thread pitch and material grade when requesting a quotation.