Hillman Fasteners 371940 Wedge Anchor 1/2x4-1/2 in 25 Pack

Product Description

The HILLMAN FASTENERS 371940 is a Power Stud wedge anchor designed for permanent fastening into concrete and masonry substrates. Manufactured from carbon steel with a zinc finish, this anchor measures 1/2 inch in diameter by 4-1/2 inches in length, with a 3-inch thread length and a minimum embedment depth of 2-1/4 inches. Each box contains 25 anchors. The design expands against the base material as the nut is tightened, creating a secure mechanical interlock. Wedge anchors of this type are installed by licensed contractors, structural trades, and experienced maintenance professionals working on concrete attachment applications.

This wedge anchor is suited for medium-to-heavy-duty structural and mechanical attachments into solid concrete. Typical applications include anchoring equipment bases, support brackets, hangers, and structural framing elements. The 1/2-inch diameter and 4-1/2-inch length make it appropriate for applications requiring substantial load capacity in both tension and shear. Each 25-pack box covers multi-anchor pattern installations common in commercial and industrial construction or renovation projects.

Key Features

• Carbon steel construction with zinc finish for corrosion resistance in interior concrete applications
• Ultimate tension load rating of 6,625 lb at 4,000 psi concrete strength
• Ultimate shear load rating of 7,150 lb at 4,000 psi concrete strength
• 3-inch thread length accommodates varying fixture thicknesses and nut engagement
• Minimum embedment of 2-1/4 inches ensures proper expansion and load transfer
• 25-anchor pack quantity suits multi-point pattern installations

Compatibility

Designed for use in solid concrete base material. Suitable for standard 1/2-inch wedge anchor installation tooling and compatible with standard hex nuts and washers of the appropriate thread pitch for 1/2-inch anchors.

Installation Notes

Wedge anchors are installed by drilling a hole matching the anchor diameter to the required depth using a hammer drill and carbide-tipped bit, then clearing debris before driving the anchor. The minimum embedment depth of 2-1/4 inches must be achieved for rated load performance. Follow applicable building codes, including ACI and IBC provisions for anchor installation in concrete. Do not install in cracked concrete, grout-filled block, or hollow base materials unless specifically rated for those substrates.