| Model: | S007D12 |
|---|---|
| Brand: | S-metal |
| Origin: | Made In China |
| Category: | Industrial Supplies / Machine Hardware / Fastener & Fitting |
| Label: | metal lath screw , drilling screw , wafer head drilling |
| Price: |
¥0.4
/ pc
|
| Min. Order: | 50000 pc |
| Live Chat: | Last Online:26 Jul, 2018 |
Wafer head self drilling screw
Wafer head self drilling screws are also called modified truss head self drilling screws（metal lath screw, k-lath screw) with large head and low profile which provides extra surface area to attach wire lath to metal studs.
Material :Case hardened steel C 1018,C 1022 with heat-treated
Stainless steel 304/316/410.
Surface:zinc plated, H.D.G, Black phosphated.
Surface hardness:The minimum surface hardness of self drilling screws after heat treatment shall be 530 HV.
Core hardness:The core hardness after heat treatment shall be 320 HV to 400 HV.
Tolerance: Grade A conforming to ISO 4759-1.
