Torx按钮锅头安全螺丝星螺栓
size M2- M30 Material Carbon Steel, Stainless Steel, Titanium, Aluminum, Brass, etc Surface Treatment Plain, black, zinc plated/according to your requirement Standard DIN GB ISO JIS BA ANSI Grade SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8 8.8 10.9 12.9 Quality Policy All the parts manufactured 100% inspection from OQC before 船运。 根据图纸或样品,线程粗糙,精细的建筑工程机械电子等非标准OEM可用