Made of 10.9 Grade Alloy Steel, with a black surface oxidation treatment, these bolts are strong, durable, and have excellent wear resistance, high hardness, and high strength.
Clear Uniform pitch, obvious screw thread, no residual burrs, the screw threads will be able to get a good grip.
Screw Specification:
Thread Diameter 8 mm
Head Diameter 15.8 mm
Head Height 6.2 mm
Screw Length 20 mm, 25 mm, 30 mm, 35 mm, 40 mm
Allen Hex Drive 5 mm
Package contains:
(6PCS) M8 x 20 mm
(6PCS) M8 x 25 mm
(6PCS) M8 x 30 mm
(6PCS) M8 x 35 mm
(6PCS) M8 x 40 mm
Total: 30PCS
If you are not satisfied, please feel free to contact us, timely refund or replacement, we will provide professional service, please rest assured to buy.