Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Screws
Origin	-
Material	304 Stainless Steel
Head Type	Flat Head (Countersunk)
Drive Style	Phillips (PH)
Thread Type	Self-Tapping Quick Thread
Size Specification	M4
Finish	Black Oxide Coated
Application	Wood, Plastic, Soft Metal
Corrosion Resistance	High (Suitable for Indoor/Outdoor)
Point Style	Sharp Gimlet Point
Package Content	Assorted Lengths (12mm - 50mm)

6 reviews

Anonymous

Mar 30, 2026

Rating: 4/5

Good quality, sharp threads

Very sharp and easy to drive in. The Phillips head held up well without stripping. I deducted one star only because the box had a few screws with slightly uneven coating, but functionally they are perfect.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for decking projects

These black screws look fantastic against my dark walnut deck. The self-tapping feature saved me a lot of time since I didn't need to pre-drill pilot holes for most boards. The 304 stainless steel gives me peace of mind regarding rust.

Anonymous

Mar 18, 2026

Rating: 5/5

Strong hold in hardwood

I used these on oak framing and they bit right in. The flat head sits perfectly flush with the surface. Great value for the quantity provided.

Anonymous

Mar 09, 2026

Rating: 4/5

Solid construction screws

These are robust screws. The quick thread design really does speed up installation. Just make sure your drill has enough torque for the larger lengths in dense wood.

Anonymous

Mar 09, 2026

Rating: 5/5

Sleek black finish

The matte black finish is exactly what I needed for my furniture restoration project. It blends seamlessly with the stained wood. No signs of corrosion after a month in the garage.

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent for outdoor use

Bought these for a garden shed build. The stainless steel material is crucial for outdoor durability. They haven't shown any rust spots despite recent rain.

5 FAQ

Q: What is the exact length range included in the pack?

A: This assorted pack typically includes lengths ranging from 12mm up to 50mm. Please check the specific variant description on the product page for the exact count per length.

Q: Are these screws suitable for pressure-treated lumber?

A: Yes, the 304 stainless steel material offers excellent corrosion resistance, making them highly suitable for use with pressure-treated lumber which can be chemically aggressive.

Q: Will the black coating wear off over time?

A: The black oxide finish is durable for general applications. However, in high-friction areas or harsh marine environments, some fading may occur over extended periods, though the underlying stainless steel will remain protected.

Q: Can these be used with an impact driver?

A: Absolutely. These screws are designed to withstand the torque of impact drivers. Just ensure you set the clutch appropriately to avoid driving them too deep into softer materials.

Q: Do I need to pre-drill holes before using these?

A: While these are self-tapping and can often be driven directly into softwoods, we recommend pre-drilling pilot holes when working with hardwoods or near the edge of the board to prevent splitting.

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