The Simpson SD8X1.25-R Wafer-Head Screw from Simpson is a #8 x 1-1/4 in. interior wood screw built for dependable general wood-to-wood fastening. Its low-profile wafer head delivers strong pull-through resistance while maintaining a clean, near-flush finish - making it a go-to fastener for projects ranging from cabinetry assembly to structural framing. With a sharp self-starting point and a deep-recess Phillips drive engineered to fight cam-out, this screw keeps installations moving quickly and accurately from the first drive to the last.

Key Features

• Wafer head design - sits low and wide against the material surface, providing a clean, low-profile finish while maximizing pull-through resistance in wood-to-wood connections
• Deep #2 Phillips drive - the deeper recess reduces cam-out during installation, giving you more control and less slippage, especially during repetitive fastening tasks
• Type-17 sharp point - self-starts quickly into wood without pre-drilling, cutting down on setup time and keeping your workflow moving
• Serrated threads - bite firmly into wood fibers as the screw seats, creating a secure and stable hold in general wood-to-wood applications
• Clear zinc coating - provides a consistent, corrosion-appropriate finish suited for interior wood fastening applications

Why This Product

• Engineered to resist pull-through - the wafer head geometry is specifically designed to spread load across the material surface, making this screw a reliable choice wherever holding strength matters in interior wood construction
• Faster, cleaner driving on the job - the combination of a Type-17 sharp point for fast starts and a deep #2 Phillips drive that actively reduces cam-out means fewer fumbled drives and more consistent results across high-volume fastening tasks
• Versatile enough for cabinetry and framing alike - the serrated thread design and sharp point make this screw equally capable in finish-sensitive cabinet work and rougher structural wood-to-wood connections
• A trusted Simpson Strong-Tie fastener - backed by Simpson's focus on interior wood fastening solutions, this screw is built to meet the demands of projects where a safer, stronger result is the standard

Specifications

• Model No.: SD8X1.25-R
• Screw Size: #8
• Length: 1-1/4 in.
• Head Type: Wafer Head
• Head Diameter: 0.415 in.
• Shank Diameter: 5/32 in.
• Drive Type: #2 Phillips
• Thread Type: Serrated Threads
• TPI: 10 2/5
• Point Type: Sharp Point
• Coating: Clear Zinc Coating
• Packaging: Packs of 100 and Cartons of 1600

Approved Applications

• Fastening Wood-to-Wood

Frequently Asked Questions

What drive type does the Simpson SD8X1.25-R use, and why does it matter?

The SD8X1.25-R uses a deep #2 Phillips drive. The deeper recess is specifically designed to reduce cam-out during installation, making driving easier and more controlled - especially useful during repetitive fastening tasks like framing or cabinetry assembly.

What is the advantage of the wafer head design on this screw?

The wafer head sits low and wide against the material surface, providing a low-profile finish while delivering strong pull-through resistance. This makes it particularly well-suited for general wood-to-wood fastening applications where a flush or near-flush head is desirable.

What does the Type-17 sharp point do?

The Type-17 sharp point allows the screw to self-start quickly into wood without the need for pre-drilling, speeding up installation and reducing setup time on the job.

Is the SD8X1.25-R suitable for outdoor use?

The SD8X1.25-R features a clear zinc coating, which is intended for interior wood applications. For outdoor or corrosion-exposed environments, a fastener with a more robust corrosion-resistant coating would be more appropriate.