Self Drilling Stainless Steel A2 Countersunk Head 4.2X25 T25
- 1 unit
- 10 units
- 30 units
- 100 units
- 400 Units
screws
nuts
washers
Threaded Rod
Boxes / Tools
Chandlery
| Number of pieces | 1 | 10 | 30 | 200 | 800 |
| Lot price VAT included | £1.61 | £3.21 | £3.91 | £19.09 | £72.54 |
How do I measure the length of a screw?
The length of a countersunk screw is measured with the head. For all other heads, the length is measured under the head.
However, make sure you choose the screw material according to the material being drilled:
| Jauge number | 6 | 7 | 8 | 10 | 12 | 14 |
| Diameter | 3.5 | 3.9 | 4.2 | 4.8 | 5.5 | 6.3 |
| Head diameter | 6.8 | 7.5 | 8.1 | 9.5 | 10.8 | 12.4 |
| Head Tickness | 2.1 | 2.3 | 2.5 | 3 | 3.4 | 3.8 |
Installing a solar panel Installing a 1m x 2m solar panel on my 1986 Mercedes camper van
Screw used for 30mm thick decking boards fixed to a galvanized structure.
Cladding fixing on steel sheet Sandwich panel type sheet
Fixing flooring in traffic Fixing 2 cm thick plywood
Installation of wood on metal frame Douglas wood on metalwork of our manufacture
Fixing terrace boards On metal structure
floor fixing trailer floor fixing
Save products on your wishlist to buy them later or share with your friends.
2026-09-13
Screw used to fix decking boards to a galvanized support.