Tapping screws
Product ID: fastener
Standard: DIN 7981/7982/7983,ISO7049，7050，7051
Material: Carbon Steel/ Stainless Steel
Finish: Zinc plating, Black, Chrome plating
Mechanical performance: Surface hardness≥HV0.3450
Size: ST2.2-ST9.5/4.5-50
Length: 2mm-300mm
.good quality ,low price
Main Products:
fastener .bearing ,fittings.
