Machine bolts

Product Name: Machine Bolts
Material: High Carbon Steel
Surface Treatment: Black Oxide Finish
Grade: 8.8 High Tensile Strength
Standard：DIN931 / GB5782
Thread Type：Partial Thread
Size： M8, M10, M12, M16, M20
Matching Accessories：Hex Nut + Flat Washer

High tensile strength, resistant to breaking under heavy load
Precise rolled thread, good fit with nuts, no slipping
Black anti-rust surface treatment, long service life
Strict dimensional tolerance, suitable for mechanical assembly