Simpson #10 x 1" Self-Drilling Pancake-Head Screw in 410 Stainless Steel is a precision-engineered fastener from Simpson, designed for low-profile, secure connections in metal roofing and standing-seam applications. Its hardened drill point eliminates the need for pre-drilling, saving time on the job site, while the corrosion-resistant 410 stainless steel construction delivers long-lasting durability in demanding outdoor environments.

Key Features

• Low-profile pancake head - sits flush against the work surface, reducing snag points and producing a clean, finished appearance in roofing and metal panel applications
• #2 square drive - delivers superior bit engagement and reduced cam-out compared to slotted drives, giving installers better torque control and faster driving
• Type 410 stainless steel with added corrosion-protection coating - heat-treatable for added hardness, enabling direct drilling through metal without a pilot hole
• Self-drilling #2 drill point - eliminates pre-drilling steps, speeding up installation and reducing the tools needed on site
• 16 TPI tapping thread - provides strong thread engagement in metal substrates for a secure, vibration-resistant hold
• 0.410 in. head diameter - wide bearing surface relative to the shank, distributing clamping load across the material and reducing pull-through risk
• 0.469 in. maximum grip length - engineered for thin-material fastening, ensuring the threads engage properly without over-penetrating the substrate

Why This Product

• Built specifically for standing-seam roofing clip installation - the low-profile head and self-drilling point work together to secure clips quickly without damaging the roofing panel surface
• 410 stainless steel, hardened through heat treatment, can drill directly through metal - meaning you bring fewer tools and spend less time on each fastener point
• The corrosion-protection coating on the 410 stainless steel base adds an extra layer of defense against moisture and weathering in outdoor roofing environments
• Simpson engineering and #2 square drive compatibility make this screw a reliable, consistent performer for professional roofing contractors who need repeatable results across large panel installations

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #10
• Length: 1 in.
• Head Type: Low Profile Head
• Head Diameter: 0.410 in.
• Drive Type: #2 Square
• Thread Type: Tapping Threads
• Point Type: Drill Point
• TPI: 16
• Max. Grip Length: 0.469 in.
• Material: Type 410 Stainless Steel
• Country of Origin: Taiwan

Available Pack Options

• F10T100PSC: 100 Pk
• F10T100PSM: 1000 Pk
• F10T100PSB: 4500 Pk

Approved Applications

• Securing clips used in standing-seam roofing systems
• Metal-to-metal fastening where a low-profile head and self-drilling capability are required
• Outdoor roofing and panel applications requiring corrosion-resistant stainless steel fasteners

Frequently Asked Questions

What is the difference between Type 410 and Type 316 stainless steel for outdoor fastening?

Type 410 stainless steel can be hardened through heat treatment, which gives it the strength needed to function as a self-drilling screw and penetrate metal directly. However, it does not offer the same level of corrosion resistance as Type 316 or Type 305 stainless steel. The added corrosion-protection coating on this screw helps compensate in outdoor roofing environments, but for highly corrosive or coastal settings, Type 316 may be more appropriate.

Do I need to pre-drill when using this screw?

No. The #2 drill point on this screw is designed to self-drill through metal, eliminating the need for a pilot hole. This reduces installation time and the number of tools required on the job site.

What driver bit is compatible with this screw?

This screw uses a #2 square drive. A compatible replacement bit is Simpson model BIT2S-2-R2.

What is the maximum grip length of this screw and why does it matter?

The maximum grip length is 0.469 in. This measurement indicates the maximum combined thickness of materials that can be fastened together before the threads begin to engage. Selecting a screw with the correct grip length ensures proper thread engagement and a secure, stable connection without over-penetrating the substrate.

Note: Product dimensions and/or thread length may differ from picture. Please see item description for specifications.