Heavy Duty Self Drilling Zinc Plated Screws with bonded washer for wood

Heavy Duty Self Drilling Zinc Plated Screws with bonded washerSizes: (with bonded washer)520TDW #10 x 3/4 (Dia 4.8mm x L20mm) - 500pcs/box with bonded washer525TDW #10 x 1 (Dia 4.8mm x L25mm) - 500pcs/box with bonded washer640TDW #12 x 1.5 (Dia 5.5mm x L40mm) - 250pcs/box with bonded washer645TDW #12 x 1.75 (Dia 5.5mm x L45mm) - 250pcs/box with bonded washer650TDW #12 x 2 (Dia 5.5mm x L50mm) - 250pcs/box with bonded washer665TDW #12 x 2.5 (Dia 5.5mm x L65mm) - 200pcs/box with bonded washer675TDW #12 x 3 (Dia 5.5mm x L75mm) - 150pcs/box with bonded washer690TDW #12 x 3.5 (Dia 5.5mm x L90mm) - 100pcs/box with bonded washer6100TDW #12 x 4 (Dia 5.5mm x L100mm) - 100pcs/box with bonded washerA self-drilling screw with a bonded washer, zinc plated, is a versatile fastener commonly used for securing materials like metal, plastic, or wood while creating a watertight seal. For wood applications, here are some key details and recommendations:Key Features:1. Self-Drilling Tip: Eliminates the need for pre-drilling, making installation quicker and easier. For wood, the tip is typically designed for soft or medium-density wood materials. 2. Bonded Washer: A metal washer with a rubber or neoprene backing that provides a watertight and vibration-resistant seal. This is especially useful for outdoor applications or areas prone to moisture.3. Coating: Corrosion-resistant coatings - zinc-plated.Common Uses:- Securing metal sheeting or roofing panels to wooden frames.- Attaching cladding or siding to wooden structures.- Any project requiring a sealed joint in woodwork. Installation Tips:- Use a power drill with the correct bit size for the screw head (Hex)- Do not overtighten to avoid damaging the bonded washer or splitting the wood. - For hardwood, consider pre-drilling a pilot hole for ease of installation.