Securfix Green Decking Screws 4.5 x 55mm, Pack of 200

Securfix green decking screws in 4.5 x 55mm (9 x 2 1/4 inch), with 200 in each pack. Made from green coated carbon steel and salt spray tested, they suit decking, fencing and garden furniture, and their partial thread is designed to prevent jacking.

Key features

• 4.5 x 55mm, listed as 9 x 2 1/4 inch
• Green coated carbon steel
• Partially threaded to prevent jacking
• Countersunk head with cross/pozi drive
• Salt spray tested
• For decking, fencing and garden furniture
• Pack of 200

Specifications

Which one do I need?

Jacking is when a fully threaded screw holds the top board slightly off the joist. The plain section under the head on these screws lets the board pull down tight instead. The 55mm length is a shorter decking size, so check that the threaded part will still land well into the joist or rail beneath your boards.

How to use

1. Position the board and set your gaps with spacers.
2. Pre-drill near the ends of boards, where splitting is most likely.
3. Use a pozi bit that fits the recess fully.
4. Drive each screw upright until the countersunk head is flush with the board surface.
5. Keep the screw lines straight along each joist for a neat finish.

FAQs

What are these decking screws used for?

Decking, fencing and building garden furniture.

Why are they partially threaded?

To prevent jacking, so boards are pulled down firmly onto the frame.

What are they made of?

Green coated carbon steel, and they are salt spray tested.