Unifix Twinthread Woodscrews Pozi Round Head - 10G X 1.1/4"

The Unifix Twinthread Woodscrews are designed for reliable fastening in wood applications. These s...

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The RangeUnifix Twinthread Woodscrews Pozi Round Head Bzp 6G X 5/8" (3.5 X 16Mm) 9Tqtqrndpz/031 Box Of 200 - Grey
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eBayUnifix Twinthread Woodscrews Pozi Round Head Bzp - 6G X 5/8"" - Box of 200
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OnBuy.comUnifix Twinthread Woodscrews Pozi Round Head Bzp - 6G X 3/4" - Box Of 200 5014196421391
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B&QB&Q - Twinthread Woodscrews Pozi Round Head Bzp6G X 5/8" (3.5 X 16mm)9Tqtqrndpz/031Box Of 200
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Product Information

Full details

The Unifix Twinthread Woodscrews are essential fasteners for woodworkers and DIY enthusiasts seeking reliable performance in timber construction. Featuring a robust twinthread design and a corrosion-resistant zinc-plated finish, these screws provide excellent grip and durability for various interior applications. While they offer superior holding power in standard wood, they are primarily intended for use in solid timber and may require pilot holes in harder woods to prevent splitting.

All features

ColourSilver
Model Part Number1260394
BrandUnifix

Extended Product Information

FAQs

Are these screws suitable for outdoor use?

The zinc-plated finish offers good resistance for internal projects, but they are not specifically rated for high-exposure or exterior marine environments.

What bit size do I need for these screws?

These screws use a standard Pozi recess; generally, a PZ2 size driver bit is recommended for 10G screws.

Should I pre-drill holes?

It is always best practice to pre-drill a pilot hole, particularly when working with hardwood to prevent splitting.

Can these be used with metal?

No, these are specifically designed for wood applications and will not perform correctly in metal substrates.

How many screws are in a single pack?

This specific pack contains 200 screws.

Troubleshooting

Screw is difficult to drive into the wood

Drill a pilot hole first, which is especially helpful when working with dense timbers.

Pozi head is stripping or camming out

Ensure you are using the correct size Pozi bit and that it is fully seated in the screw head before applying pressure.

Wood is splitting near the screw

Pre-drill a smaller pilot hole and ensure the screw is not positioned too close to the edge of the material.

Pros and Cons

Pros

  • Excellent holding strength due to the twinthread profile
  • Durable zinc-plated coating resists corrosion
  • Standard Pozi head makes finding compatible bits easy
  • Pack size of 200 is ideal for ongoing workshop use

Cons

  • Not intended for extreme outdoor or marine environments
  • Requires pilot holes when working with very dense or hardwood
  • Round head may leave a profile, making them less suitable for flush-finish applications

Setup, Compatibility & Care

To ensure optimal performance, verify that your drill or screwdriver is set to the appropriate torque setting; excessive force can lead to thread stripping in softer woods. When working near the edge of a workpiece, it is highly recommended to drill a small pilot hole to mitigate the risk of wood splitting. While the zinc-plated finish is resistant to corrosion, avoid exposing the screws to direct, prolonged moisture or heavy saline air. Store the remaining screws in a dry, cool place within their original packaging to preserve the finish quality.

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