Sealey Self Tapping Screw - 3.5 x 10mm - Flanged Head - Black - Pozi - Sealey - BST3510

A self-tapping screw creates its own thread as it is driven into a material, eliminating the need for a pre-tapped hole.

A flanged head has a wider bearing surface under the head of the screw, distributing the load and preventing damage to the material.

A Pozi drive is a type of screw head designed to reduce cam-out and improve grip during driving, resulting in a more secure and efficient installation.

These screws are suitable for use in wood, plastics, and thin metals. However, for hardwoods, pre-drilling is recommended.

BS 4174 is a British Standard that specifies the requirements for self-tapping screws, ensuring quality and performance.

Use the correct size Pozi drive screwdriver bit, apply steady pressure, and avoid over-tightening.

If the screw is too long, it may protrude through the material. Ensure the screw length is appropriate for the material thickness to avoid damage.

Ensure the correct Pozi drive screwdriver is used. Pre-drill a pilot hole if the material is hard.

Apply more pressure and ensure the screwdriver bit fits properly. Reduce the driving speed. If the head is stripped, replace the screw.

Ensure the screw is the correct length for the material thickness. If the hole is stripped, consider using a larger screw or filling the hole with a suitable material.