Unreinforced Window Screws

Unreinforced window screws are specialist fasteners designed for fixing window frames into non-reinforced uPVC and other lightweight profiles where no steel insert is present. Engineered for reliable grip and controlled penetration, they provide secure fixing while preventing damage to softer materials.

Available in a wide range of sizes and finishes including zinc plated (BZP), zinc yellow (ZY), and A2 stainless steel, these screws offer dependable corrosion resistance, consistent performance, and easy installation for both domestic and commercial window applications.

Unreinforced Window Screws

Brand

Diameter

Head Type

Length

Material

4.3x16 Unreinforced Frame Screw Stainless Steel & Silver Organic Timco 200 Range Pack 1000

4.3x16 Unreinforced Frame Screw Zinc & Yellow Timco 200 Range Pack 1000

4.3x16 Unreinforced Frame Screw Zinc Plated Timco 200 Range Pack 1000

4.3x20 Unreinforced Frame Screw Stainless Steel & Silver Organic Timco 200 Range Pack 1000

4.3x20 Unreinforced Frame Screw Zinc & Yellow Timco 200 Range Pack 1000

4.3x20 Unreinforced Frame Screw Zinc Plated Timco 200 Range Pack 1000

Brand

Diameter

Head Type

Length

Material

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