Simpson #8 x 1-1/4 in. Bugle-Head Wood Deck Screw, #2 Square Drive, Type 305 Stainless Steel (5,000-Qty) is a professional-grade exterior fastener from Simpson engineered for powerful, corrosion-resistant fastening of all types of wood decking - including cedar, redwood, and preservative-treated lumber. The bugle head countersinks flush with the decking surface for a clean, finished appearance, and Type 305 stainless steel construction stands up to the moisture and weathering that break down ordinary fasteners over time. Whether you are building a new deck or reinforcing an existing outdoor structure, this screw delivers the holding strength and long-term durability that wood-to-wood fastening applications demand.

Key Features

• Type-17 point - drives fast and clean without the need for predrilling in most field conditions, saving time on large decking installations
• Coarse threads on approximately 2/3 of the shank - draw decking boards and other material tightly to the framing for a secure, gap-free connection
• Bugle head design - countersinks flush with the wood surface, eliminating proud fastener heads and delivering a professional finish on deck boards
• Type 305 stainless steel material and finish - provides high-level corrosion resistance, keeping fasteners structurally sound and visually clean in demanding exterior environments
• #2 square drive - resists cam-out better than Phillips drive, giving you more control and reducing stripped heads during installation; a driver bit is included in each package
• Predrilling recommended near board ends - protects the integrity of cedar, redwood, and treated decking by preventing splitting at the most vulnerable points
• 5,000 screws per package - bulk quantity reduces mid-project restocking and keeps large deck builds moving efficiently

Why This Product

• Built specifically for exterior wood decking - engineered to fasten cedar, redwood, and preservative-treated woods, this screw addresses the exact materials and conditions found in outdoor deck construction rather than serving as a generic all-purpose fastener
• Corrosion resistance designed for long-term outdoor exposure - Type 305 stainless steel holds up where standard steel fasteners fail, making these screws a sound investment for any deck intended to last as long as the structure it supports
• Drive system that reduces installer fatigue and rework - the combination of a Type-17 point for fast starts and a #2 square drive that resists cam-out means fewer stripped screws, faster installation, and a cleaner result across thousands of fasteners
• Tight, lasting connections with every drive - coarse threads running along approximately 2/3 of the shank pull decking material firmly against the framing, reducing movement and helping deck boards stay flat and secure over time

Specifications

• Model Number: S08125DBB
• Brand: Simpson Strong-Tie
• Screw Size: #8
• Length: 1-1/4 in.
• Head Type: Bugle Head
• Head Diameter: 0.340 in.
• Drive Type: #2 Square
• Thread Type: Coarse Threads
• Point Type: Type-17 Point
• Material: Type 305 Stainless Steel
• Finish: Type 305 Stainless Steel
• Quantity: 5,000 per package

Approved Applications

• Fastening Wood-to-Wood

What's Included

• #2 square driver bit included (replacement bit model BIT2S-2-R2)

Frequently Asked Questions

What type of wood is this screw compatible with?

This screw is designed for fastening all types of wood decking, including cedar, redwood, and preservative-treated woods, making it a versatile choice for exterior deck construction and wood-to-wood fastening applications.

Why is Type 305 stainless steel used for this screw?

Type 305 stainless steel provides high-level corrosion resistance, making these screws well suited for exterior applications where exposure to moisture and the elements could cause standard steel fasteners to deteriorate over time.

Is predrilling required when installing these screws?

Predrilling is recommended near board ends to prevent splitting. The Type-17 point facilitates fast starts in most field conditions, but taking this precaution at board ends helps protect the integrity of your decking material.

What drive bit is needed, and is one included?

These screws use a #2 square drive. A #2 square driver bit is included in each package. If a replacement bit is needed, the compatible model is BIT2S-2-R2.