Ningbo Haitian Fastener Industry Co., LTD.
A professional manufacturer for screws, bolts and nuts.

Screws > Tapping Screws, Modify Truss head
- Wafer/Phil. Head Tapping Screws, Twinfast Thread, C1018 or C1022 + Harden
- Finish: ZP, ZY

| Item | Spec. | U.Weight /Mpcs |
| 1 | 4.2 x 13 | 1.72 |
| 2 | 4.2 x 16 | 1.84 |
| 3 | 4.2 x 19 | 2.06 |
| 4 | 4.2 x 25 | 2.55 |
| 5 | 4.2 x 32 | 2.92 |
| 6 | 4.2 x 41 | 3.42 |
| 7 | 4.2 x 50 | 4.27 |