Simpson Finish Trim Screw, #7 x 2-1/2 in., Type 316 Stainless Steel with T10 6-Lobe Drive from Simpson Strong-Tie delivers a clean, low-profile fastening solution for trim, molding, and a wide range of interior and exterior finish applications. Built from Type 316 stainless steel, this trim head screw resists corrosion in demanding environments - including contact with preservative-treated wood and exposure to moisture - making it a dependable choice for both indoor finish work and outdoor installations where fastener visibility and long-term performance both matter.

Key Features

• Type 316 Stainless Steel material and finish - provides superior corrosion resistance in harsh outdoor environments, wet conditions, and applications involving preservative-treated lumber, ensuring lasting durability without rust staining on finished surfaces.
• Trim Head with 0.200 in. head diameter - the compact, low-profile cylinder head sits flush and nearly invisible after driving, delivering a clean, concealed appearance ideal for finish carpentry and visible trim work.
• Patented SawTooth Point - eliminates the need for predrilling by cutting cleanly into wood, allowing faster starts and easier driving while reducing the risk of splitting in trim and molding applications.
• T10 6-Lobe drive recess - provides a secure, slip-resistant engagement between the bit and fastener, reducing cam-out for longer bit life and more controlled, accurate driving on finish surfaces.
• Serrated threads with Variable TPI - engineered thread geometry grips material aggressively for strong holding power, while underhead threads assist with countersinking and increase pull-through resistance.
• 1.50 in. thread length - optimized thread engagement ensures reliable holding strength across a range of trim and molding thicknesses.
• Suitable for interior and exterior use - versatile enough to handle both indoor finish projects and exterior applications, including contact with preservative-treated wood, without sacrificing performance.

Why This Product

• No predrilling required - the patented SawTooth Point drives directly into wood without a pilot hole, saving time on trim and molding installations and reducing the total number of steps in the fastening process.
• Virtually invisible after installation - the compact trim head at 0.200 in. diameter keeps fastener visibility to a minimum, which is critical for finish-quality work where surface appearance is as important as holding strength.
• Rated for preservative-treated wood and exterior exposure - Type 316 stainless steel construction makes this screw a reliable choice for outdoor trim, deck fascia, and other exterior finish applications where standard steel fasteners would corrode or stain.
• Driver bit included - a T10 6-lobe driver bit is included, so you can get started immediately without sourcing a separate bit, and the 6-lobe interface minimizes cam-out for cleaner driving on finish surfaces.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #7
• Length: 2-1/2 in.
• Head Type: Trim Head
• Head Diameter: 0.200 in.
• Drive Type: T10 6-Lobe
• Point Type: SawTooth Point
• Thread Type: Serrated Threads
• Thread Length: 1.50 in.
• TPI: Variable
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Color: None
• Measurement Unit: Pack
• Country of Origin: Taiwan

Available Pack Options

• FT07212T100: 100 Pk - includes (1) T10 6-lobe driver bit
• FT07212T400: 400 Pk - includes (1) T10 6-lobe driver bit

Frequently Asked Questions

Do I need to predrill before driving this trim screw?

No. The patented SawTooth Point on this screw is specifically designed to eliminate the need for predrilling. It cuts cleanly into wood for fast starts and easy driving, which speeds up trim and molding installations and reduces the risk of splitting the material.

Is this screw safe to use with preservative-treated wood?

Yes. The Type 316 stainless steel construction makes this Finish Trim screw fully suitable for use with preservative-treated wood, as well as for exterior applications where moisture and corrosive conditions are a concern. Type 316 stainless steel provides strong resistance to the chemicals used in modern wood preservatives.

What driver bit does this screw require, and is one included?

This #7 size Finish Trim screw uses a T10 6-lobe driver bit. A T10 6-lobe driver bit is included with the screws, so no separate bit purchase is needed to get started. The 6-lobe recess design helps prevent cam-out and extends bit life during repetitive driving.

Can this trim screw be used for exterior projects as well as interior finish work?

Yes. The Simpson Finish Trim screw is rated for both interior and exterior use. Its Type 316 stainless steel material and finish provide the corrosion resistance needed for outdoor trim, molding, and similar finish applications exposed to weather or moisture.

Note: Product dimensions and/or thread length may differ from picture. Please refer to the specifications listed above for accurate product details.