Screw-Tite Yellow Zinc-Plated Case & Through Hardened Woodscrew (Dia)5mm (L)80mm, Pack Of 100

The only screw that works with all timbers, all modern building materials such as MDF, thin sheet steel, plastics and masonry (pilot hole required). Double-Countersunk Head with Underhead Ribs Carbon Steel Construction Net-Coat Yellow-Plated Wax-Coated Thread-Cutting Partially Threaded TS Thread System Offers a Single & Twin Thread in One, Gripping Fast with a Firm Fix - Manufacturers part number: TFST05080

• Underhead ribs ream and self-countersink for a clean, flush finish.
• Tri-lock shank allows the screws to go in easily, locking into the material and ensuring once it's in, it stays in!
• With the strength of a high tensile bolt, the screw will not snap and works in almost any material without the need to pilot.
• Tri-lock TS thread provides a single and twin thread on one screw with a quick, balanced start teamed with a high pull-out retention.