Product Description
The Simpson F07T300TDC is a #7 x 3" self-drilling siding screw crafted from Type 410 stainless steel, engineered for reliable fastening of wood siding, wood panels, and metal trim to steel studs. Featuring a low-profile trim head, a #3 drill point for clean self-drilling entry into metal framing, and a #1 square drive for secure, cam-out-resistant installation, this screw delivers professional-grade performance in a single, efficient fastener. Sold in a convenient 100-piece pack, the F07T300TDC is a dependable choice for siding contractors and finish carpenters who demand precision and consistency on every job.
Key Features
- Trim Head - Low-profile head design for a clean, finished appearance on exposed siding and trim applications.
- #3 Drill Point - Self-drilling tip penetrates steel studs without pre-drilling, saving time and labor on the job site.
- #1 Square Drive - Provides superior bit engagement and reduces cam-out during installation; compatible with replacement bit model BIT1S-2-R2.
- Type 410 Stainless Steel - Hardenable through heat treatment, enabling the screw to drill through metal while maintaining structural integrity.
- 100-Piece Packaging - Bundled in a job-ready quantity for efficient workflow on siding and framing projects.
Specifications
- Model Number: F07T300TDC
- Screw Size: #7
- Length: 3 in.
- Head Diameter: 0.230 in.
- Head Type: Trim Head
- Drive Type: #1 Square
- Thread Length: 2/3 of shank
- TPI (Threads Per Inch): 19
- Point Type: Drill Point (#3)
- Material / Coating: Type 410 Stainless Steel
- Packaging Quantity: 100 pieces
- Country of Origin: Taiwan
Approved Applications
- Attaching wood siding to steel studs
- Fastening wood panels to steel framing members
- Securing metal trim to steel studs
What's Included
- 100 x Simpson #7 x 3" Self-Drilling Siding Screws (F07T300TDC), Type 410 Stainless Steel
Frequently Asked Questions
- Do these screws require pre-drilling before installation into steel studs?
- No. The F07T300TDC features a #3 drill point that allows the screw to self-drill directly into steel studs without the need for a pilot hole, saving time and labor on the job site.
- What type of drive bit does this screw require?
- This screw uses a #1 square drive, which provides superior bit engagement and reduces cam-out during installation. It is compatible with replacement bit model BIT1S-2-R2.
- What applications is this screw designed for?
- The F07T300TDC is engineered for fastening wood siding, wood panels, and metal trim to steel studs. Its low-profile trim head makes it well suited for exposed siding and trim applications where a clean, finished appearance is important.
- Why is Type 410 stainless steel used for this screw instead of a softer stainless grade?
- Type 410 stainless steel is a hardenable alloy that can be strengthened through heat treatment. This allows the screw to maintain the hardness needed to self-drill through metal framing while still offering the corrosion-resistant properties of stainless steel - a combination that softer stainless grades cannot reliably provide in self-drilling applications.
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