Hillman Fasteners 375310 Concrete Screw 1/4x2-3/4 in 100 Pack

Product Description

The HILLMAN FASTENERS 375310 is a Phillips flat head tapper concrete screw supplied in a 100-pack with a matching installation bit. Sized at 1/4 inch diameter by 2-3/4 inches in length, this screw is engineered for direct anchoring into concrete, block, and masonry without requiring a separate anchor or insert. The Blue Perma-Seal coating provides corrosion resistance for both interior and exterior applications. With a 1-1/2 inch embedment depth, the screw delivers an ultimate tension load of 1,850 pounds and an ultimate shear load of 2,270 pounds when set in 4,000 psi concrete. Installation requires only a hammer drill and the included Phillips bit.

This screw is suited for attaching wood, metal, and other materials directly to concrete slabs, foundations, block walls, and poured concrete structures. The flat head profile sits flush after installation, making it appropriate for applications where a low-profile fastener is required. Typical uses include securing sill plates, conduit straps, anchor clips, and equipment bases to concrete substrates. The 100-pack quantity supports production-level work on commercial and residential job sites where volume fastening to masonry is routine.

Key Features

• 1/4 inch diameter by 2-3/4 inch length for standard masonry anchoring applications
• Blue Perma-Seal corrosion-resistant coating suitable for interior and exterior use
• 1-1/2 inch embedment depth into concrete substrate
• Ultimate tension load of 1,850 pounds in 4,000 psi concrete
• Ultimate shear load of 2,270 pounds in 4,000 psi concrete
• Includes matching installation bit; 100-pack quantity for high-volume use

Compatibility

Designed for direct installation into concrete, block, and masonry substrates; suitable for applications requiring a flush-mount Phillips flat head tapper screw at 1/4 inch diameter.

Installation Notes

Installation is performed with a hammer drill using the appropriate carbide-tipped masonry bit to pre-drill the pilot hole, followed by driving the screw with the included Phillips bit. Power down or de-energize any equipment in the work area before fastening into concrete near embedded conduit or utilities. Minimum edge and spacing distances should be observed per anchor manufacturer guidelines to maintain rated load values. Consult applicable building codes for structural anchoring requirements on your project.