Screws & Fixings

Start with the materials you are joining. Browse window and frame fixings, timber screws and roofing screws, with driver bits and finishing caps for compatible fixings.

Start with the connection

What are you fixing?

Choose the range that matches the materials you are joining.

Windows & framesComponent screws, baypole fixings and masonry frame screws.Explore range →Timber & deckingWood screws, decking screws and coach screws.Explore range →Roofing & claddingHex-head screws with washers. Check the supporting material.Explore range →

GSD fixing guide

Choose screws by the materials you are joining

A useful starting point is the connection itself: component to reinforcement, frame to masonry, timber to timber, or a roofing sheet to its support.

Window and frame fixings

Window and frame screws include short uPVC component screws, baypole screws and masonry frame fixings. They do different jobs. Compare diameter, length, head, drive and available pack sizes.

Timber, decking and roofing

Timber and wood screws cover general joinery, decking, coach and construction applications. For roofing sheets and cladding, compare roofing screws and check the supporting material and washer requirements.

Finish the job with compatible accessories

Driver bits and cover caps appear alongside fixings in this collection. Match the driver profile and size to the selected screw; match a cover cap to its stated screw gauge and head. An accessory is not a substitute for a fixing.

Check available variants for price and quantity. Delivery charges depend on the products and destination; see delivery information.

Questions before you order

Which screw should I choose for a uPVC window?

First distinguish component fixing, a bay assembly and fixing the frame into masonry. Use the frame or hardware specification, then compare the matching product’s dimensions, head, drive and finish.

Are all screws in this collection sold in boxes of 100?

No. Pack quantities vary by product and variant. Read the selected option; some listings are assorted kits, driver bits or finishing caps.

Can I use a longer screw instead?

Length alone does not establish suitability. Diameter, head, receiving material, embedment and the installation requirements must also match.

Need help checking a size or pack? Contact GSD before ordering.