Timber-Well™_Self-Tapping-Screw
Concealed-Fixing Screw CSK-Head
Flat Countersunk Head Full Coarse Thread Type 17 Sharp Needle Point Zinc Plated Self-Tapping Roofing Screw. Suitable for Light Duty Residential Frame Fixing applications, such as Calcium Silicate Board To Lightweight Steel / Timber Structure installation within mild urban or rural areas. The Flat CSK Head Design is excellent for concealing the screw and keeping the installation surface smooth and neat. Zinc Plating is ideal for internal installation or external environments with neutral surroundings like Mild-Urban and Rural areas.
| SPECIFICATION | |
| MATERIAL | Carbon Steel C1022 |
| HEAD | Flat Countersunk Head (CSK) |
| RECESS | Phillips Drive (PH2) |
| THREAD | Full Coarse Thread (Type BSD) |
| POINT | No. 2 Small-Lightning Point |
| FINISH | Plain Zinc Plated (More Available) |
| SIZE | #7 (≒ M3.9mm), #8 (≒ M4.2mm) |
| LENGTH | 20mm, 25mm, 32mm, 45mm (More Available) |
| DRILLING | Steel Thickness Max. 1.0mm (#7) Steel Thickness Max. 2.0mm (#8) |
| ADAPTER | Magnetic Phillips Bits (PH2) |
