Hexagon nuts with flange
Standard:GB6177 ISO 4161 DIN 6923 ASME B 18.2.2
Size:M5~M64
1/4~4
Grade:4.8 5.8 6.8 8.8 10.9 12.9
Material:Carbon steel, Stainless steel, 355 35K 45# 40Cr
Surface:black, zinc plated, color zinc, dacromet
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