1) Mushroom head, square neck bolt, DIN603 according to DIN standard; 

2) Class 4.8, 8.8, 10.9, 12.9 for carbon steel; Stainless steel A2-70, A4-80 (304, 316). 

3) Size from M3 to M70, length from 20mm to 300mm; 

4) Surface treatment including: Plain, zinc plated, nickel plated, H. D. G., black, dacromet, mechanical zinc plated; 

5) Packing: Bulk packing 25kgs/carton, 36 cartons/palelt; Or small box packing under your requirements 

 

1) Mushroom head, square neck bolt, ANSI/ASME B 18.5, according to ANSI/ASME standard; 

2) Size from 1/8" to 3", length from 1/2" to 12"; 

3) Grade 2, 5, 8, for carbon steel; Stainless steel A2-70, A4-80(304, 316).

4) Surface treatment including: Plain, zinc plated, H. D. G., black, dacromet, mechanical zinc plated 

5) Packing: Bulk packing 25kgs/carton, 36 cartons/palelt; Or small box packing under your requirements