Reinforcement Screws

8 products

  • Window Fabrication Screws - Countersunk Facet - PH - Metric Thread - Self-Drilling Point - Martensitic Stainless Steel & Silver Organic

    TIMCO - 231SSTimco Window Fabrication Screws Stainless Steel, Silver, Lime, Pvc

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk Facet - PH - Metric Thread - Self-Drilling Point - Martensitic Stainless Steel & Silver OrganicDesigned For Window Fabrication, These TIMCO Screws Pin Steel Reinforcement Inside PVCu Frames Using Auto Feed Machines. The Countersunk Facet Head And PH Drive Provide Flush, Controlled Fixing, While The Metric Thread And Self-Drilling Point Speed Installation Into Reinforced Sections. Made From Martensitic Stainless Steel 410 With A Silver Organic Finish For Corrosive Environments.

    From 2 - 3 Working Days

    £29.27 Ex. VAT £35.12 In. VAT

  • Window Fabrication Screws - Countersunk - PH - High-Low Thread - Slash Point - Zinc Timco Window Fabrication Screws Steel, Zinc, Lime, Pvc, Ash

    TIMCO - 4 optionsTimco Window Fabrication Screws Steel, Zinc, Lime, Pvc, Ash

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk - PH - High-Low Thread - Slash Point - ZincThese Window Fabrication Screws Are Designed For Fixing Hardware To PVCu And Unreinforced Window Frames Where No Steel Or Aluminium Reinforcement Is Present. The Countersunk PH Head Provides A Flush Finish, While The High-Low Thread And Slash Point Support Secure Driving Into Frame Materials. Manufactured From Carbon Steel With A Zinc Finish For General Corrosion Resistance.

    From 2 - 3 Working Days

    £9.63 - £13.26 Ex. VAT £11.56 - £15.91 In. VAT

  • Window Fabrication Screws - Countersunk - PH - High-Low Thread - Slash Point - Yellow Timco Window Fabrication Screws Yellow, Steel, Zinc, Lime, Pvc, Ash

    TIMCO - 4 optionsTimco Window Fabrication Screws Yellow, Steel, Zinc, Lime, Pvc, Ash

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk - PH - High-Low Thread - Slash Point - YellowThese Carbon Steel Window Fabrication Screws Are Designed For Fixing Hardware To Unreinforced Window And Door Frames Where No Steel Or Aluminium Reinforcement Is Present. The Countersunk Head Provides A Flush Finish, While The PH Drive, High-Low Thread And Slash Point Support Efficient Installation Into PVCu Frames. Supplied With A Zinc And Yellow Finish For Practical Corrosion Resistance.

    From 2 - 3 Working Days

    £9.63 - £13.26 Ex. VAT £11.56 - £15.91 In. VAT

  • Window Fabrication Screws - Countersunk Facet - PH - Metric Thread - Self-Drilling Point - Zinc Timco Window Fabrication Screws Steel, Zinc, Lime, Pvc

    TIMCO - 3 optionsTimco Window Fabrication Screws Steel, Zinc, Lime, Pvc

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk Facet - PH - Metric Thread - Self-Drilling Point - ZincDesigned For Pinning Steel Reinforcement Inside PVCu Window Frames, These Carbon Steel Window Fabrication Screws Combine A Countersunk Facet Head, PH Drive, Metric Thread And Self-Drilling Point For Fast Installation With Auto Feed Machines. The Zinc Finish Provides General Corrosion Resistance For Fabrication Environments, Supporting Accurate Seating And Reliable Fixing In Reinforced Frame Assembly.

    From 2 - 3 Working Days

    £7.83 - £9.45 Ex. VAT £9.40 - £11.34 In. VAT

  • Window Fabrication Screws - Countersunk - PH - Metric Thread - Self-Drilling Point - Zinc Timco Window Fabrication Screws Steel, Zinc, Lime, Pvc

    TIMCO - 5 optionsTimco Window Fabrication Screws Steel, Zinc, Lime, Pvc

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk - PH - Metric Thread - Self-Drilling Point - ZincDesigned As An Alternative To Self Tapping Window Screws, These Zinc Plated Carbon Steel Fixings Use A Metric Thread And Self Drilling Point For Securing Hardware To PVCu Or Fabricated Window Frames With Steel Reinforcement. The Countersunk PH Head Provides A Flush Finish For Hinges, Keeps, Brackets And General Frame Fittings.

    From 2 - 3 Working Days

    £7.77 - £13.04 Ex. VAT £9.32 - £15.65 In. VAT

  • Window Fabrication Screws - Countersunk with Ribs - PH - Single Thread - Gimlet Point - Yellow Timco Window Fabrication Screws Yellow, Steel, Zinc, Lime, Pvc

    TIMCO - 9 optionsTimco Window Fabrication Screws Yellow, Steel, Zinc, Lime, Pvc

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk With Ribs - PH - Single Thread - Gimlet Point - YellowThese TIMCO Window Fabrication Screws Are Designed For Fixing Hardware To Unreinforced Window And Door Frames Where No Steel Or Aluminium Reinforcement Is Present. The Countersunk Head With Ribs Improves Flush Seating, While The Single Thread Gimlet Point Supports Fast Starting In PVCu And Similar Frame Materials. Made From Carbon Steel With A Zinc And Yellow Finish.

    From 2 - 3 Working Days

    £6.40 - £11.22 Ex. VAT £7.68 - £13.46 In. VAT

  • Window Fabrication Screws - Countersunk with Ribs - PH - Single Thread - Gimlet Point - Zinc Timco Window Fabrication Screws Steel, Zinc, Lime, Pvc

    TIMCO - 10 optionsTimco Window Fabrication Screws Steel, Zinc, Lime, Pvc

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk With Ribs - PH - Single Thread - Gimlet Point - ZincThese TIMCO Window Fabrication Screws Are Designed For Fitting Hardware To PVCu And Timber Frames Where No Steel Or Aluminium Reinforcement Is Present. The Countersunk Head With Ribs Improves Flush Seating, While The Single Thread And Gimlet Point Support Accurate Starting. Manufactured From Zinc Finished Carbon Steel For General Interior Fabrication Use.

    From 2 - 3 Working Days

    £6.40 - £12.89 Ex. VAT £7.68 - £15.47 In. VAT

  • Window Fabrication Screws - Countersunk with Ribs - PH - Single Thread - Gimlet Tip - Stainless Steel Timco Window Fabrication Screws Stainless Steel, Lime, Pvc

    TIMCO - 6 optionsTimco Window Fabrication Screws Stainless Steel, Lime, Pvc

    From 2 - 3 Working Days

    Window Fabrication Screws - Countersunk With Ribs - PH - Single Thread - Gimlet Tip - Stainless SteelThese TIMCO window fabrication screws are designed for securing hardware to PVCu and other unreinforced frames where no steel or aluminium reinforcement is present. Made from A2-304 Austenitic Stainless Steel, they suit corrosive environments, while the countersunk ribbed head, PH drive, single thread and gimlet tip support clean seating and efficient fixing.

    From 2 - 3 Working Days

    £26.32 - £42.61 Ex. VAT £31.58 - £51.13 In. VAT

Reinforcement Screws That Bite into Steel Inside uPVC Profiles

Discover our full collection of Reinforcement Screws at Fixings2Go. Part of our wider Window Fabrication Screws collection these TIMCO screws are made for the moment the point meets the galvanised steel or aluminium reinforcement hidden inside a uPVC chamber. The hardened self drilling tip carries on through where an ordinary screw would stall and strip the plastic.

Sizes run from 13mm to 55mm in 4.3mm and 4.8mm gauges with zinc yellow passivated and stainless steel finishes all supplied in fabricator friendly 500 and 1000 piece boxes. Hinges keeps locking gear and frame couplings all fix back to the reinforcement with these screws which is exactly where the strength of a uPVC window lives.

Frequently Asked Questions

Why must window hardware fix into the reinforcement?

uPVC alone will not hold hinges and locks under daily load. Reinforcement screws pass through the plastic and thread into the steel section inside so the hardware anchors to metal not polymer.

What gauge reinforcement screw should a fabricator use?

Most hardware schedules call for 4.3mm with 4.8mm for heavier friction stays and keeps. Match the length so the point passes fully through the reinforcement wall without reaching the outer face of the profile.

Why shop for Reinforcement Screws at Fixings2Go?

We stock TIMCO reinforcement screws in every fabricator size and finish at trade prices with fast UK delivery.

Need More Help Choosing the Right Reinforcement Screws?

Our friendly customer service team are always ready to provide answers offer support and share information. So if you are still unsure on which product best suits your needs or for any other questions or queries please do not hesitate to give us a call on 01424 220384.

© 2026 Fixings2Go

      Login

      Forgot your password?

      Don't have an account yet?
      Create account