Set of 50 M4.2 flat head self-tapping screws, drill shank screw set (M4.250)

Features:

1. 100% brand new and high quality.
2. These self-drilling screws have sharp drill shanks, no need for auxiliary processing.
3. They can directly drill, tap and lock on the material at the same time, safe and easy to use, greatly saving construction time.
4. Compared with ordinary screws, they have high maintenance strength and are not easy to loosen for a long time.
5. Mainly used for fixing colored steel tiles in steel structure or simple thin sheet construction.

Specifications:

Features:
100% brand new and high quality.
These self-drilling screws have sharp drilling shanks, no need for auxiliary processing.
They can directly drill, tap, and lock the material simultaneously, making them safe and easy to use, which significantly saves construction time.
Compared to ordinary screws, they have high holding power and will not loosen easily over time.
Primarily used for attaching colored steel roofing sheets to a steel structure, or for simple construction of thin sheet metal.
These screws cannot be used for bonding metals.
Specifications:
Material: Zinc-plated iron
Head type: Flat (countersunk)
Size: M4.2*13, M4.2*16, M4.2*19, M4.2*25, M4.2*32, M4.2*38, M4.2*50 (optional)
Quantity: 50 pieces
Weight: 46g~161g / 1.6 oz ~ 5.7 oz (approx.)
Package list:
50 * Screws