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The Range£6.81Visit shop Unifix Grade 10.9 Socket Csk Head Screws M3 X 8 - Q107991000300008000 - Box Of 500 - Grey
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The Unifix Carcass Woodscrews are essential fasteners for woodworkers and DIY enthusiasts looking for reliable, flush-fitting joinery in framing and general construction projects. Featuring a durable black oxide finish for improved corrosion resistance and a versatile 8G x 45mm profile, these screws provide excellent holding power for various timber applications, though users should ensure they utilize the correct Pozi drive bit to prevent cam-out during installation.
| Colour | Black |
|---|---|
| Model Part Number | 1261822 |
| Brand | Unifix |
While the black oxide finish provides some corrosion resistance, these are primarily intended for internal woodwork. Use stainless steel for permanent outdoor exposure.
It is highly recommended for hardwoods to prevent splitting, though softwoods may not require it if driving into the center of a board.
Use a pilot bit that is slightly smaller than the diameter of the screw shank (approx. 2.5mm to 3mm).
Yes, but be careful with torque settings to avoid stripping the Pozi head or over-driving the screw.
This product is supplied in a box of 500 screws.
No, the black oxide finish also provides a level of corrosion protection and helps the screws blend into darker wood projects.
Ensure you are using the correct size Pozi bit and maintain steady, firm pressure on the drill.
Drill a smaller diameter pilot hole before driving the screw to relieve tension in the wood fibers.
Ensure the countersink depth is adequate and you are using a countersinking tool if the wood is particularly dense.
For the best results, use a high-quality Pozi drive bit that matches the screw size exactly. Using a worn-out bit is the leading cause of stripped heads. When working with dense timber or working near the edge of a board, always pre-drill a pilot hole slightly smaller than the 8G shank to avoid splitting the material. To maintain the integrity of the black oxide finish, keep the box in a dry area. If you are working in high-moisture areas, consider applying a thin layer of wax to the threads before driving them in to reduce friction and minimize heat buildup.
