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Materials: middle carbon steel 40 # -45 #Specification: diameter 1.60mm to 6.0mm
Size: diameter range: 1/4 to 1/2-inch
Length range 13 to 130mm
Surface: original color, blacken and plated zinc
Package: standard export packing
Small package and bulk package
Characteristics: middle carbon steel hardness to reach more than HRC50, shear strength =980 MPA, toughness curvature properties=75°. Super hardness, superior quality and reasonable price
Flat head with grooved, round head with smooth shank and diamond point
