The Simpson Titen 1/4 in. x 3-3/4 in. Hex-Head Stainless Steel Concrete and Masonry Screw is a precision-engineered fastener from Simpson that threads directly into pre-drilled concrete, brick, grouted or hollow CMU, and masonry without a separate anchor - delivering secure, dependable holding strength in environments where a medium level of corrosion resistance is required. Built from Type 410 stainless steel with a zinc-plated protective overcoat, this hex-head concrete screw is a trusted choice among specifiers and contractors for demanding structural fastening applications where both performance and corrosion resistance matter.

Key Features

• Type 410 stainless steel construction with zinc-plated protective overcoat - provides a medium level of corrosion resistance, making these screws suitable for installations in moisture-prone or chemically challenging environments where standard carbon steel fasteners may degrade prematurely.
• Hex-head drive style - allows for fast, high-torque installation with a standard hex driver or nut driver, reducing installation time and improving control during fastening.
• Compatible with concrete, brick, grout-filled CMU, hollow-block masonry, and some preservative-treated wood - gives contractors the flexibility to use a single fastener type across a wide range of common base materials on the same jobsite.
• Requires a 3/16 in. drill bit, which is included in each box - eliminates a separate trip to source the correct drill bit and ensures the right tooling is always on hand for a properly sized pilot hole.
• No separate anchor required - the screw threads directly into the base material, simplifying installation, reducing component count, and speeding up production on high-volume fastening tasks.
• Sold in a pack of 100 - provides enough quantity for large-scale concrete and masonry fastening projects without frequent reordering.

Why This Product

• Engineered by Simpson for demanding structural applications - Simpson mechanical anchors are designed and trusted by specifiers and contractors for optimum performance under the most demanding conditions, making this screw a reliable choice where fastener failure is not an option.
• Stainless steel construction expands where you can use it - the Type 410 stainless steel material makes these screws appropriate for environments where standard concrete screws would corrode, including applications near preservative-treated lumber, adding versatility standard zinc-coated anchors cannot match.
• Everything needed for installation comes in the box - the included 3/16 in. drill bit means crews can start work immediately without sourcing additional tooling, reducing downtime and keeping projects on schedule.
• Hex-head design suits high-volume production fastening - the hex drive allows power tool installation with consistent torque, making this screw well suited for contractors attaching multiple components to concrete or masonry across large commercial or structural projects.

Specifications

• Model No.: TTN25334HSS
• Diameter: 1/4 in.
• Length: 3-3/4 in.
• Drill Bit Diameter: 3/16 in.
• Material: Type 410 stainless steel
• Finish: Type 410 stainless steel, zinc plated with a protective overcoat
• Head Style: Hex head

Approved Applications

• Concrete fastening applications
• Brick fastening applications
• Grout-filled CMU (concrete masonry unit) applications
• Hollow-block masonry applications
• Some preservative-treated wood applications
• Attaching various types of components to concrete and masonry in environments requiring medium-level corrosion resistance

What's Included

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

Frequently Asked Questions

What material are the Simpson TTN25334HSS Titen screws made from?

These Titen screws are made from Type 410 stainless steel and are zinc plated with a protective overcoat, providing a medium level of corrosion resistance suitable for a variety of installation environments.

What base materials are these screws compatible with?

The TTN25334HSS Titen screws are suitable for use in concrete, brick, grout-filled CMU, and hollow-block applications. They are also suitable for some preservative-treated wood applications.

What drill bit size is required to install the TTN25334HSS Titen screw?

A 3/16 in. diameter drill bit is required for installation. One appropriately sized drill bit is included in each box.

What head style does the TTN25334HSS Titen screw feature?

This Titen screw features a hex-head style, which allows for efficient installation using standard hex-drive tools in structural and general fastening applications.

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