Standard din, iso, jis, bs, astm Grade din: gr.4.6, 4.8, 5.6, 5.8, 8.8, 10.9, 12.9; sae: gr.2, 5, 8; Astm: 307a, 307b, a325, a394, a490, a449 Thread unc, unf, unef, m, bsw, bsf, tr, acme, npt Material carbon steel(#1035,1045, 40cr, 35crmo, 42crmo, b7, 20mn2, m20), Stainless steel(303, 304, 304l, 316, 316l), brass(h59, h62) Size 1/2-12 Finish plain, zinc plated, h.D.G., black oxided, etc Production technique cold foging, hot forming, machining, heat treatment, etc First in cartons then on pallet
