Feature:
1. Made of 12.9 grade alloy steel highstrength material, and through high temperature treatment, the screw strength is improved.
2. The overall thread of the bolts are neat and clear, not easy to get stuck and glossy, and the force is even.
3. Standard hex grooves, not easy to slip, speed up work efficiency, complete specifications.
4. Small size, easy to carry and store, convenient to use and with good performance.
5. A large number, can meet your use and replacement needs, very practically.
Specification:
Item Type: Concave End Tightening SetMaterial: 12.9 grade high-strength alloy steel
Model and Quantity:
60 x M3 x 3 Concave End Tightening
60 x M3 x 4 Concave End Tightening
50 x M3 x 10 Concave End Tightening
50 x M4 x 4 Concave End Tightening
40 x M4 x 6 Concave End Tightening
40 x M5 x 5 Concave End Tightening
30 x M5 x 8 Concave End Tightening
30 x M6 x 6 Concave End Tightening
20 x M6 x 10 Concave End Tightening
20 x M8 x 8 Concave End Tightening
Package List:
60 x M3 x 3 Concave End Tightening
60 x M3 x 4 Concave End Tightening
50 x M3 x 10 Concave End Tightening
50 x M4 x 4 Concave End Tightening
40 x M4 x 6 Concave End Tightening
40 x M5 x 5 Concave End Tightening
30 x M5 x 8 Concave End Tightening
30 x M6 x 6 Concave End Tightening
20 x M6 x 10 Concave End Tightening
20 x M8 x 8 Concave End Tightening