Simpson Finish Trim Screw in #7 x 1-1/2" Type 316 Stainless Steel with T10 6-Lobe Drive from Simpson Strong-Tie is a high-performance fastening solution engineered for clean, low-profile results in trim, molding, and finish woodworking applications - both indoors and out. Constructed from Type 316 stainless steel, this trim head screw resists corrosion in demanding outdoor environments, coastal settings, and applications involving preservative-treated lumber, making it a dependable choice wherever long-term durability and minimal fastener visibility matter most.

Key Features

• Type 316 Stainless Steel material and finish - provides superior resistance to corrosion, saltwater exposure, and harsh chemicals, making this screw reliable for exterior, coastal, and preservative-treated wood applications
• Trim Head with 0.200 in. head diameter - the compact, low-profile cylinder head sits flush and nearly disappears into the work surface, delivering a clean, concealed appearance ideal for visible finish work
• Patented SawTooth Point - eliminates the need for predrilling by cutting through wood fibers cleanly, speeding up installation and reducing splitting risk in trim and molding projects
• Serrated Threads with 1.00 in. thread length - grip wood tightly for strong holding power, with underhead threads that promote superior countersinking and increased pull-through resistance
• T10 6-Lobe drive recess - provides a secure, cam-out-resistant connection between driver and screw, extending bit life and giving the installer better control during driving
• 1-1/2 in. overall length with #7 screw size - a versatile dimension well suited to attaching trim boards, moldings, and other lightweight finish components without over-penetrating thin substrates
• Suitable for interior and exterior use including preservative-treated wood - one screw handles a wide range of job-site conditions, reducing the need to stock multiple fastener types

Why This Product

• No predrilling required - the patented SawTooth point starts fast and drives easy, saving measurable time on trim and molding installations where dozens or hundreds of fasteners may be driven in a single session
• Virtually invisible fastening - the trim head's 0.200 in. diameter stays small enough to countersink cleanly below the surface, so finish work looks professional without bulky fastener heads drawing the eye
• Built for corrosive environments - Type 316 stainless steel is specifically chosen for its enhanced resistance to saltwater, chlorides, and the chemicals found in preservative-treated lumber, making this screw appropriate where standard stainless or coated fasteners may underperform
• Everything needed to start driving is included - a T10 6-lobe driver bit ships with #7 sizes, so you can go straight from the box to the workpiece without hunting for matching tooling

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #7
• Length: 1-1/2 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Head Type: Trim Head
• Head Diameter: 0.200 in.
• Drive Type: T10 6-Lobe
• Thread Type: Serrated Threads
• Thread Length: 1.00 in.
• Point Type: SawTooth Point
• Color: None
• Country of Origin: Taiwan

Available Pack Options

• FT07112T100: 100 Pk - includes (1) T10 6-lobe driver bit
• FT07112T500: 500 Pk - includes (1) T10 6-lobe driver bit

Frequently Asked Questions

Do these screws require predrilling before driving?

No. The patented SawTooth point is designed to eliminate the need for predrilling, cutting cleanly into wood and making driving fast and straightforward - even in harder wood species used for trim and molding.

Are these screws appropriate for use with preservative-treated lumber?

Yes. Type 316 stainless steel is compatible with preservative-treated wood and is also suited for both interior and exterior applications, including environments where moisture and corrosive chemicals may be present.

What driver bit is needed, and is one included?

These screws use a T10 6-lobe drive recess. A T10 6-lobe driver bit is included with #7 sizes, so you can begin driving immediately without needing to source a separate bit.

What is the difference between a trim head and a standard bugle or flat head screw?

A trim head screw features a much smaller head diameter - 0.200 in. on this screw - compared to standard construction screws. This compact, low-profile cylinder head countersinks cleanly and stays nearly invisible once set, making it the preferred choice for finish carpentry, trim installation, and molding work where fastener appearance matters.

Note: Product dimensions and/or thread length may differ from picture.