Hillman 372221 Screw-bolt Masonry Anchor

Product Description

The HILLMAN 372221 is a screw-bolt style concrete and masonry anchor designed for direct fastening into concrete, block, and brick substrates without the need for separate expansion hardware. The anchor threads directly into a pre-drilled hole, creating a mechanical interlock with the base material as it is driven in. This type of fastener is commonly installed by contractors, electricians, plumbers, and HVAC technicians when securing equipment bases, pipe hangers, conduit supports, and structural brackets to masonry surfaces. The 372221 is sold in box quantity with a minimum order of one box.

This anchor is suited for both light commercial and residential applications where a reliable, removable fastening point is needed in concrete or masonry. Typical installations include securing mechanical equipment pads, attaching strut channel to concrete walls, and anchoring brackets in utility rooms, mechanical spaces, and outdoor slabs. The screw-bolt design allows for faster installation compared to traditional sleeve or wedge anchors, making it a practical choice for high-volume fastening tasks on the job site.

Key Features

• Screw-bolt design threads directly into pre-drilled masonry without a separate expansion insert
• Suitable for concrete, block, and brick substrates
• Removable and re-drivable for applications requiring future access or adjustment
• Sold in box quantity for job-site volume use
• Lightweight package at 0.776 pounds per box

Compatibility

Designed as an OEM-style replacement and standard fastening solution for concrete and masonry anchor applications in residential and light commercial construction and mechanical installations.

Installation Notes

Installation is performed by drilling a correctly sized hole into the masonry substrate using a hammer drill and carbide-tipped bit before driving the anchor. De-energize or shut off any adjacent electrical, gas, or fluid systems before drilling into structural or mechanical areas. Follow applicable building codes and manufacturer hole-depth requirements to ensure proper load-bearing engagement. Do not overtighten, as this can strip the masonry threads and reduce holding strength.