Truss head bolts, drawing enclosed A52001 - truss head bolt 4 x 10 MM: 2.500.000 Stk./a A52002 - truss head bolt 5 x 10 MM: 2.000.000 Stk./a A52003 - truss head bolt 4 x 18 MM: 100.000 Stk./a A52004 - truss head bolt 5 x 18 MM: 30.000 Stk./a We would like to buy 2-3 yearly amount of the item; A52003, A52004 to get the higher amounts and better prices. 4-square neck is very important! Details to the truss head bolt with square neck. 4-square neck 4x0,7 mm and 5x0,8 mm should be finished exactly according to drawings A52001 or A52002. The thread must be consistently up to the 4 - square neck. The surface of the bolt head must be flat. ( it must be possible to connect two metal plates with the thickness 0,5 mm and the washer 0,8 mm ) Material: A2 stainless steel. The bolts must be completely oil free and cleaned with the vibratory finishing process.