Simpson #10 x 1-1/2 in. Bugle-Head Wood Deck Screw, #2 Square Drive, Type 305 Stainless, 3500-Pack delivers reliable, corrosion-resistant fastening for exterior wood decking applications. Engineered by Simpson Strong-Tie, these screws are built to handle all types of wood decking - including cedar, redwood, and preservative-treated woods - with a bugle head that countersinks flush for a clean, professional finish. Whether you are working on a new deck build or a repair project, this bulk pack is sized for high-volume installation needs.

Key Features

• Type-17 point - designed for fast starts, reducing the effort needed to begin each drive and keeping installation moving efficiently
• Coarse threads on approximately 2/3 of the shank - draw the decking and other material tightly to the framing for a secure, gap-free connection
• Bugle head - provides flush countersinking so screw heads sit level with the decking surface without tearing the wood fibers
• Type 305 stainless steel construction - provides high-level corrosion resistance, keeping fasteners structurally sound in exposed outdoor environments
• #2 square drive with driver bit included - the matching bit ships in every package, so you can get to work immediately without hunting for the right accessory
• Predrilling recommended near board ends - a best practice that helps prevent splitting and protects the integrity of your decking material during installation

Why This Product

• Built for outdoor wood decking from the ground up - the Type 305 stainless steel material and coarse-thread design are specifically suited to the demands of cedar, redwood, and preservative-treated deck board fastening, where moisture exposure and wood movement are constant concerns
• Faster, cleaner installs with every screw - the Type-17 point gets each fastener started quickly, the bugle head countersinks flush without surface damage, and the included #2 square driver bit means you have everything you need right out of the package
• Tight, lasting connections to the framing - coarse threads running along approximately 2/3 of the shank pull decking boards firmly down to the substructure, reducing movement and helping maintain a solid, stable deck surface over time
• High-volume value without compromising quality - 3,500 screws per package means fewer interruptions on large decking jobs, backed by the engineering and material standards Simpson Strong-Tie is known for in structural connectors and fasteners

Specifications

• MPN: S10150DBB
• Screw Size: #10
• Length: 1-1/2 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: 3,500 per package

Approved Applications

• Fastening Wood-to-Wood
• Fastening all types of wood decking, including cedar, redwood, and preservative-treated woods

What's Included

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

Frequently Asked Questions

What type of wood decking are these screws compatible with?

These screws are suitable for fastening all types of wood decking, including cedar, redwood, and preservative-treated woods. The Type 305 stainless steel construction provides high-level corrosion resistance, making them well suited for exterior decking environments.

What drive type does the Simpson S10150DBB use, and is a bit included?

The S10150DBB uses a #2 square drive. A #2 square driver bit is included in each package. If a replacement bit is needed, the compatible replacement bit model is BIT2S-2-R2.

Is predrilling required when installing these screws?

Predrilling is recommended near board ends to prevent splitting. The Type-17 point is designed for fast starts in general installation, but taking care near the ends of boards helps protect the integrity of the decking material.

How do the coarse threads on this screw improve fastening performance?

The coarse threads run on approximately 2/3 of the shank, which draws the decking and other material tightly to the framing for a secure, stable hold. This thread design, combined with the bugle head, ensures flush countersinking and a clean finished surface on your deck.