Securfix PTX 9 x 3 5/32 inch (4.5 x 80mm) Pack of 100 Screws

These 80mm tx screws are 4.5 x 80mm (9 x 3 5/32 inch) and come 100 to a pack, with a recessed TX drive. A countersunk head lets the screw sit flush once driven, and the TX recess takes a matching bit.

Key features

• Size 4.5 x 80mm (9 x 3 5/32 inch)
• Pack of 100
• Countersunk head
• Recessed TX drive
• Zinc and yellow passivated finish

Specifications

Which one do I need?

Length matters most with a screw this size. Add the thickness of the top piece to the bite you need in the material behind and see whether the sum lands close to 80mm.

How to use

1. Set out your fixing points first, keeping clear of edges, and check for hidden services.
2. Drill pilot holes in hardwood or near an edge to reduce the chance of splitting.
3. Use the matching TX bit and keep the driver in line with the screw.
4. Stop as soon as the head is level with the surface to avoid over-driving.

FAQs

What does the pack of 4.5 x 80mm (9 x 3 5/32 inch) screws contain?

There are 100 screws in the pack, each 4.5 x 80mm (9 x 3 5/32 inch).

Which bit fits these screws?

Use a TX bit: the drive on these is recessed TX.

Are these 80mm tx screws countersunk?

The head is countersunk, and the finish is zinc and yellow passivated.