Simpson Strong-Tie No. 8 Deck Screws are built to endure outdoor decks and coastal climates where longevity matters. This 1-5/8 in screw, sized No. 8, combines robust 316 stainless steel with a protective coating to deliver a secure, flush finish that stands up to weather, moisture, and wear.
Designed for outdoor deck projects, these screws feature a flat head that sits neatly below or flush with the decking surface, leaving a clean, professional look. The lobe drive minimizes cam-out for confident, steady driving even in dense or hardwood boards, reducing stripping and speeding up install time. Each box contains 150 screws, non-collated, boxed for straightforward handling and storage.
- Size: No. 8
- Length: 1-5/8 in
- Material: Type 316 Stainless Steel
- Finish: Coated
- Head: Flat
- Drive style: Lobe
- Pack: 150 screws per box
- Packaging: Boxed
- Application: Outdoor deck installations
- Collated: No
Why 316 stainless steel with coating matters for outdoor decks
316 stainless steel offers exceptional resistance to corrosion from moisture, humidity, and salt exposure—making these screws ideal for decks built with pressure-treated lumber, cedar, redwood, or hardwoods in tough environments. The protective coating adds an extra layer of durability during driving and in service, helping to preserve finish and prevent staining around the screw head.
Ideal use cases and practical scenarios
Use these No. 8, 1-5/8 in deck screws when attaching deck boards to joists in exterior projects, especially where prolonged exposure to weather is a concern. They excel in coastal homes, sun-soaked patios, and any outdoor structure that demands a reliable, corrosion-resistant fastener. The flush profile keeps surfaces smooth for comfortable walking and clean aesthetics, while the lobe drive provides steady torque for faster installs without compromising drive quality.
Tips for best results
- Pre-drill where needed, especially in hardwoods or when working with dense boards, to reduce splitting and ensure consistent seating.
- Choose a compatible lobe-driver to maximize torque transfer and minimize cam-out.
- Pair with properly sized joists and decking materials for a durable, long-lasting deck surface.
- Store in a dry place to maintain coating integrity and prevent surface rust on unused fasteners.
Whether you're building a new outdoor deck, replacing weathered fasteners, or upgrading a coastal project, Simpson Strong-Tie No. 8 Deck Screws deliver the combination of strength, corrosion resistance, and a clean finish that outdoor applications demand. Add a box to your cart and tackle your deck with confidence.
