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Price
$20.99
UPVC Door & Window Repair Screw Kit, 20 Pcs M3.5, M4, M5 Stainless Steel Flat Head Screws 8mm & 20mm Grub Screws for Door Handles Latch Keep Plates, Gearboxes, Handle Fixing โ€” image 1
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UPVC Door & Window Repair Screw Kit, 20 Pcs M3.5, M4, M5 Stainless Steel Flat Head Screws 8mm & 20mm Grub Screws for Door Handles Latch Keep Plates, Gearboxes, Handle Fixing

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$20.99
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About this item
  • Great Value Package & Versatile Quantity: This 20-piece stainless steel screw set includes M3.5, M4, and M5 sizes in both 8mm and 20mm lengths. These grub screws offer an economical solution for repairing latch keeps, gearboxes, striker plates, and window handles in one purchase.
  • Compact & Practical Size: These grub screws for door handles come in two length options โ€“ 8mm for surface-mounted fittings and 20mm for deeper or recessed installations. The compact M3.5, M4, and M5 thread sizes fit most standard UPVC hardware.
  • Premium Durable Material & Build: Made from solid stainless steel with no coatings or plating, these grub screws offer excellent rustproof performance. The high-quality material ensures long-term durability and corrosion resistance for both indoor and outdoor UPVC door and window installations.
  • Easy & Efficient Operation: Each grub screw for door handles features a flat countersunk head with a Phillips (cross) drive, sitting flush with UPVC surfaces. Installation is straightforward with standard screwdrivers, providing a neat, professional finish.
  • Wide Application Scenarios: These grub screws are designed for UPVC door and window maintenance โ€“ perfect for replacing missing, loose, or rusted screws in faceplates, window gearboxes, handles, and latch fixings. No need to replace entire hardware systems.
Product description

Whether you need grub screws for replacing missing or rusted screws in faceplates, window gearboxes, handles, or latch fixings, this kit helps you avoid replacing entire hardware systems. Perfect for DIY enthusiasts and professionals alike.

Product details
Brand
Taydin
Manufacturer
dingdaimaoyi
Material
Stainless Steel
Colour
Silver
Size
M3.5, M4, M5
Part number
DDB2026060316

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10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
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Excellent
4.5 average rating
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S
Sigalit
๐Ÿ‡ฎ๐Ÿ‡ฑ ยท January 2026
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I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
๐Ÿ‡ฆ๐Ÿ‡บ ยท November 2025
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The package was here in Australia from England in a few days โ€” so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1โ€“2 of 10 reviews

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UPVC Door & Window Repair Screw Kit, 20 Pcs M3.5, M4, M5 Stainless Steel Flat Head Screws 8mm & 20mm Grub Screws for Door Handles Latch Keep Plates, Gearboxes, Handle Fixing | Bigamart