ForgeFix Multi Purpose Single Thread Screws 4.0 x 40mm Zinc Yellow Passivated Box 200

ANTI-CORROSIVE YELLOW SHIELD - Finished with a premium zinc yellow passivated coating. This specialised chemical layer provides enhanced protection against rust and environmental corrosion compared to standard bright zinc. AGGRESSIVE SINGLE THREAD - Engineered with a deep, sharp single-thread pattern that bites immediately into timber. Delivers exceptional holding power and high pull-out resistance in softwoods, hardwoods, and chipboard. FLUSH COUNTERSUNK HEAD - Features a double-countersunk head design with integrated ribs. Cuts into the material surface seamlessly to sit completely flush with the timber, creating a clean, snag-free finish. NON-SLIP POZIDRIV INSERT - Outfitted with a precision-machined Pozi-Drive head recess. Ensures maximum driver bit engagement, reducing cam-out and allowing high-torque insertion without stripping the fastener. MULTI-MATERIAL VERSATILITY - The ultimate professional trade screw for a wide array of applications. Seamlessly fastens timber framing, MDF panels, blockboard, plastics, and wall plugs for brick masonry., Weight: 0.88 Pounds, Manufacturer: ForgeFix