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OnBuy.com£8.95Visit shop Unifix A2-304 St/St Self-Tapping Screws 10G X 1.1/4" - Q207981c00480032000 5014196318714
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The Range£10.32Visit shop Unifix A2-304 Self-Tapping Screws 10G X 1.1/4" - Q207981c00480032000 - Grey
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The Unifix A2-304 Self-Tapping Screws (10G x 3/4") are ideal for professionals and DIY enthusiasts requiring a reliable, corrosion-resistant fastening solution for both wood and metal projects. Engineered from high-quality A2-304 stainless steel, these screws offer superior durability and simplified installation through their self-tapping design; however, users should ensure they are using the correct pilot hole size in harder materials to prevent snapping during high-torque applications.
| Colour | Silver |
|---|---|
| Model Part Number | Q207981C00480019000 |
| Brand | Unifix |
While A2-304 stainless steel is highly corrosion-resistant, we recommend A4-316 grade stainless steel for direct salt-water or marine environments.
In wood, a pilot hole is optional depending on the density, but for metal, a pilot hole is strongly recommended for a secure and easy installation.
10G refers to the gauge of the screw diameter, which in this case is approximately 4.8mm.
While it might fit loosely, you should use a Pozi drive bit to prevent damage to the screw head and ensure proper torque transfer.
It is a standard defining the dimensions and thread geometry for cross-recessed pan head self-tapping screws.
Ensure you are using a Pozi bit (not a standard Phillips) and check that the bit tip is not worn.
Increase the size of your pilot hole to reduce the torque required to drive the screw.
Verify the environment; A2-304 is durable but may require A4-316 grade stainless steel for extremely harsh or marine-adjacent environments.
To ensure the best results, use a high-quality Pozi drive bit that matches the screw head perfectly; using a Phillips bit can damage the screw head and cause slipping. For maintenance, simply ensure the screw heads remain free of debris during installation. If working in coastal environments, consider regular inspection for surface tea-staining, though the A2-304 grade provides robust protection for most standard residential and light commercial use cases.
