The Simpson Titen 1/4 in. x 3-1/4 in. Phillips Flat-Head Stainless Steel Concrete and Masonry Screw is engineered by Simpson Strong-Tie for secure, reliable fastening into concrete, brick, grout-filled CMU, and hollow-block masonry. Built from Type 410 stainless steel with a zinc-plated protective overcoat, this Titen screw delivers a medium level of corrosion resistance, making it well-suited for structural and general fastening applications in environments where elevated durability is required. The flat-head Phillips drive profile sits flush after installation, keeping surfaces clean and unobstructed - a practical advantage when attaching electrical boxes, light fixtures, and similar components to concrete or masonry surfaces.

Key Features

• Phillips flat-head drive design - seats flush with the surface after installation, reducing snag points and producing a clean finished appearance in visible or high-traffic areas
• Type 410 stainless steel construction with zinc-plated protective overcoat - provides a medium level of corrosion resistance for use in environments where standard carbon-steel fasteners fall short
• Compatible with concrete, brick, grout-filled CMU, and hollow-block masonry - broad base-material versatility means one fastener solution covers a wide range of structural and commercial applications
• Suitable for some preservative-treated wood applications - extends usability beyond masonry alone, offering greater flexibility on mixed-material jobsites
• Threads directly into a pre-drilled pilot hole - eliminates the need for a separate expansion anchor, streamlining installation and reducing the number of components to manage on site
• One appropriately sized 3/16 in. drill bit included in each box - ensures the correct bit is always on hand, so work can begin immediately without sourcing additional tooling
• Trusted Simpson Strong-Tie engineering - designed to perform under demanding structural applications where anchor reliability is critical

Why This Product

• Corrosion resistance built in from the material up - the combination of Type 410 stainless steel and a zinc-plated protective overcoat makes these concrete screws a dependable choice for masonry fastening environments where standard fasteners would degrade over time
• Versatile across multiple base materials - rated for concrete, brick, grout-filled CMU, hollow-block masonry, and some preservative-treated wood applications, these Titen screws reduce the need to stock multiple fastener types for different substrates
• Simplified installation with no expansion anchor required - the screw threads directly into a pre-drilled pilot hole, and the included drill bit means the job can start without an extra trip to source tooling
• Engineered by Simpson Strong-Tie for demanding structural use - specifiers and contractors rely on Simpson Strong-Tie mechanical anchors for optimum performance in the most demanding structural applications, giving buyers confidence in long-term holding power

Specifications

• Model Number: TTN25314PFSS
• Diameter: 1/4 in.
• Length: 3-1/4 in.
• Drill Bit Diameter: 3/16 in.
• Material: Type 410 Stainless Steel
• Finish: Type 410 Stainless Steel with zinc-plated protective overcoat
• Head Style: Phillips Flat-Head

Approved Applications

• Concrete (standard and lightweight)
• Brick
• Grout-filled CMU (concrete masonry units)
• Hollow-block masonry
• Some preservative-treated wood applications
• Fastening electrical boxes, light fixtures, and similar components to concrete and masonry surfaces

What's Included

Each pack contains (100) Stainless Steel Concrete Screws, One drill bit is included in each box.

Frequently Asked Questions

What base materials are the Simpson TTN25314PFSS Titen screws compatible with?

These Titen screws are suitable for use in concrete, brick, grout-filled CMU, and hollow-block masonry applications. They are also suitable for some preservative-treated wood applications.

What size drill bit is required for the TTN25314PFSS Titen screw?

A 3/16 in. diameter drill bit is required. For convenience, one appropriately sized drill bit is included in each box of screws.

What material is the TTN25314PFSS Titen screw made from, and what level of corrosion resistance does it provide?

The screw is made from Type 410 stainless steel and features a zinc-plated protective overcoat. This construction provides a medium level of corrosion resistance, making it appropriate for environments where elevated corrosion protection is needed compared to standard carbon steel fasteners.

What is the head style of the TTN25314PFSS, and why does it matter?

The TTN25314PFSS features a Phillips flat-head design, which allows the screw head to sit flush with or below the surface of the material being fastened. This is ideal for applications requiring a low-profile finish, such as attaching electrical boxes or light fixtures to concrete and masonry surfaces.

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