Hillman Fasteners 375303 Concrete Tapper Screw 3/16x2-3/4 100PK

Product Description

The HILLMAN FASTENERS 375303 is a Phillips flat head tapper concrete screw designed for direct fastening into concrete, block, and masonry without requiring an anchor. Each screw measures 3/16 inches in diameter by 2-3/4 inches in length and provides a 1-1/2 inch embedment depth. The package includes 100 screws and an installation bit. Rated for use in 4,000 psi concrete, this fastener delivers an ultimate tension load of 1,210 pounds and an ultimate shear load of 1,280 pounds. Licensed contractors, concrete finishers, and commercial tradespeople rely on this type of fastener for structural and non-structural concrete attachment applications.

This concrete screw is suited for residential and commercial installation scenarios where direct masonry fastening is required. Typical applications include attaching sill plates, electrical boxes, conduit straps, brackets, furring strips, and equipment bases to poured concrete or concrete masonry unit walls and floors. The flat head profile sits flush with the work surface, making it appropriate for applications where a low-profile finish is needed. The included installation bit simplifies field use.

Key Features

• 3/16 inches diameter by 2-3/4 inches length with 1-1/2 inch embedment depth
• Rated for 4,000 psi concrete with 1,210 lb ultimate tension capacity
• 1,280 lb ultimate shear capacity in 4,000 psi concrete
• Phillips flat head profile for flush-mount installations
• 100-pack quantity with installation bit included
• No anchor required — threads directly into pre-drilled concrete or masonry

Compatibility

Designed for direct installation into poured concrete, concrete block, and masonry substrates. Suitable for structural and non-structural fastening applications in residential and commercial construction where a 3/16 inch diameter concrete tapper screw with 1-1/2 inch embedment is specified.

Installation Notes

Installation is typically performed by licensed contractors, masons, or electricians depending on the application. Before driving, drill a correctly sized pilot hole into the concrete substrate per the fastener manufacturer's guidelines — hole depth must accommodate full embedment plus required clearance. Confirm base material strength meets or exceeds the rated 4,000 psi concrete specification before relying on published load values. Follow applicable building codes and engineer specifications for structural connections.