The Simpson SD8X1.25-R Wafer-Head Screw from Simpson Strong-Tie is a #8 x 1-1/4 in. interior wood screw engineered for reliable general wood-to-wood fastening. Featuring a low-profile wafer head and a deep #2 Phillips drive, this screw delivers exceptional pull-through resistance while keeping installation fast and cam-out-free - making it an ideal choice for everything from cabinetry to framing.

Key Features

• Wafer head design provides a low-profile finish with strong pull-through resistance
• Deep #2 Phillips drive reduces cam-out and makes driving easier
• Type-17 sharp point for fast starts
• Serrated threads for a secure, stable hold in wood applications
• Clear zinc electro-galvanized finish for interior use

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
• Country of Origin: Taiwan

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.