TIMCO Classic Multi-Purpose Screws - PZ - Double Countersunk - Exterior - Black Organic - 3.5 / 4.0 / 5.0

Exterior-Grade Screws with Durable Black Organic Coating. TIMCO Classic Multi-Purpose Screws – Black Organic are designed for strong, long-lasting fixings in exterior woodworking and construction. The tough black organic coating offers superior corrosion resistance, making them ideal for outdoor applications where appearance and durability matter. The double countersunk head provides a neat flush finish while reducing the risk of head shear, and the sharp point with single coarse thread ensures quick starting and high holding power in timber, MDF, chipboard, and certain plastics. The PZ2 Pozidriv recess guarantees secure bit engagement with minimal cam-out.. Key Features & Benefits. Black Organic Coating: High-level corrosion resistance with a smart, discreet appearance.. Double Countersunk Head: Produces a flush finish and reduces head shear risk.. PZ2 Pozidriv Drive: Ensures positive bit engagement for slip-resistant driving.. Sharp Point: Fast starting without pre-drilling in most applications.. Single Coarse Thread: Excellent grip in timber, MDF, chipboard, and plastics.. Application Areas. Outdoor woodworking and joinery. Fencing, gates, and exterior furniture. Garden structures and decking. General construction in damp conditions. DIY and professional projects. Technical Specifications. Head Type: Double countersunk. Drive Type: PZ2 (Pozidriv No.2). Thread Type: Single coarse thread. Point: Sharp point. Material: Hardened carbon steel. Finish: Black organic coating. Sizes Available: 3.5mm, 4.0mm, 5.0mm. Use: Exterior applications