The Simpson 3/8 in. x 5 in. Phillips Flat-Head Sleeve-All Anchor from Simpson is a pre-assembled, expanding sleeve anchor built for reliable fastening in all types of solid base materials, including concrete and brick. Engineered to install easily and securely, this zinc-plated carbon steel anchor delivers optimal performance across demanding structural applications as well as everyday installation work, making it a dependable choice for contractors and serious do-it-yourselfers alike.

Key Features

• Expansion anchor for use in solid base materials - the pre-assembled sleeve design expands on installation, creating a secure mechanical hold in concrete, brick, and similar solid substrates without the need for adhesive or extra components.
• FM and UL approved with multiple DOT listings - third-party certifications mean this anchor meets the requirements of regulated, safety-critical, and public infrastructure projects, reducing approval risk on the job.
• Phillips flat head - the low-profile flat head sits flush with the fixture surface after installation, keeping fastened assemblies clean and snag-free where a protruding head would be a problem.
• Zinc-plated carbon steel construction - the zinc plating provides a layer of corrosion resistance over a strong carbon steel body, giving the anchor durability appropriate for general-purpose structural use.
• Requires a 3/8 in. drill bit - a single, commonly available bit size handles the entire installation, keeping setup simple; using an oversized hole will make it difficult to set the anchor and will reduce the anchor's load capacity, so precise drilling is essential.

Why This Product

• Ready to install out of the box - the pre-assembled sleeve design means no separate parts to manage on the job site, saving time during installation and reducing the chance of missing components.
• Versatile approval profile for regulated projects - FM and UL approvals combined with multiple DOT listings make this anchor one of the few fasteners that can move seamlessly from commercial construction to public infrastructure work without substitution.
• Engineered by a trusted anchoring manufacturer - Simpson backs this product with deep expertise across a wide range of mechanical anchoring solutions, from infrastructure-scale projects down to DIY applications, so buyers get a product designed with real-world performance demands in mind.
• Flush-mount head for clean, professional results - the Phillips flat head is ideal when fixture appearance or surface clearance matters, eliminating the raised profile that hex-head anchors leave behind.

Specifications

• MPN: SL37500PF
• Brand: Simpson Strong-Tie
• Head Type: Phillips Flat Head
• Diameter: 3/8 in.
• Length: 5 in.
• Bolt/Rod Diameter: 5/16 in.
• Drill Bit Size: 3/8 in.
• TPI: 18
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Packaging: Packs of 50 and Cartons of 200

Frequently Asked Questions

What base materials is the SL37500PF designed for?

The Simpson Strong-Tie SL37500PF Sleeve-All anchor is designed as an expansion anchor for use in all types of solid base materials, including concrete and brick.

What drill bit size is required to install this anchor?

A 3/8 in. drill bit is required for proper installation of this anchor. Using an oversized hole will make it difficult to set the anchor and will reduce the anchor's load capacity.

Is this anchor approved for regulated or safety-critical applications?

Yes. The SL37500PF is FM and UL approved and carries multiple DOT listings, making it suitable for a wide range of regulated and safety-critical structural applications.

What material and coating does this anchor use?

This anchor is constructed from zinc-plated carbon steel, providing corrosion resistance appropriate for general-purpose use in solid base materials.

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