Product
The Spax T-STAR Plus T20 Black Galvanized Full Thread Wood Screw in 4x40mm offers reliable fastening for wood applications, available in a practical 200-piece pack suited for professional and DIY use.
Specifications
- Manufactured from black galvanized steel, providing corrosion resistance for interior and sheltered exterior applications
- Features a full thread (TF) design along the entire shank length, maximizing grip and pull-out resistance in wood
- T-STAR Plus T20 drive recess reduces cam-out and allows higher torque transmission compared to standard Torx drives
- 4mm diameter and 40mm length offer versatility across a wide range of wood thicknesses and assemblies
- Countersunk head design allows flush or recessed installation into wood surfaces
Usage
Drive the screw directly into wood using a T20 T-STAR Plus compatible bit. The full thread engages the material immediately, eliminating the need for pre-drilling in many softwood applications. Suitable for structural assembly, joinery, decking substructures, and general carpentry tasks.
FAQ
- Do these screws require pre-drilling? In most softwood applications, pre-drilling is not required. For hardwoods or near edges, pre-drilling is recommended to prevent splitting.
- What driver bit is compatible with these screws? A T20 T-STAR Plus bit is required. Standard T20 Torx bits are also compatible but may offer slightly reduced torque efficiency.
- Are these screws suitable for outdoor use? The black galvanized coating provides moderate corrosion resistance, making them suitable for sheltered exterior use. For fully exposed outdoor environments, a higher corrosion protection class is recommended.
- What does full thread (TF) mean? Full thread means the threading runs along the entire length of the screw shank, maximizing holding power and pull-out resistance in wood-to-wood connections.
- How many screws are included in the pack? Each pack contains 200 screws, making it well suited for larger projects or professional use.
mvm-dt-2026-03
