L H Dottie ST3 Machine Screw Anchor 10-24

Product Description

The L H Dottie ST3 is a machine screw anchor designed to accept a 10-24 threaded fastener. Anchors of this type create a secure, load-bearing connection point in masonry substrates such as concrete block, brick, and poured concrete. The ST3 is sold as a single unit and is commonly used in electrical, HVAC, and plumbing trades wherever equipment, brackets, or enclosures must be fastened to masonry walls or floors. Installation is straightforward and requires standard masonry drill bits and hand tools.

Machine screw anchors are a standard hardware item in trade work involving any masonry substrate. The ST3 is suited for light-duty to medium-duty anchoring tasks in residential and commercial construction. Typical applications include mounting electrical boxes, conduit straps, pipe hangers, equipment support brackets, and similar hardware to concrete or block surfaces. The 10-24 thread size is compatible with a wide range of standard machine screws used across HVAC, plumbing, and electrical installations.

Key Features

• Accepts 10-24 machine screws for a secure threaded connection
• Designed for use in masonry substrates including concrete, brick, and block
• Single-unit packaging allows precise quantity ordering
• Compact anchor profile suitable for tight installation spaces
• Compatible with standard masonry drill and setting tools used in trade work

Compatibility

Designed for use with 10-24 threaded machine screws in masonry anchoring applications across electrical, HVAC, plumbing, and general mechanical trade work.

Installation Notes

Installation is performed by drilling a correctly sized hole in the masonry substrate, inserting the anchor, and driving the 10-24 machine screw to expand and set the anchor. Power down or de-energize any nearby electrical systems before drilling near conduit, wiring, or equipment. Follow applicable local building codes and manufacturer hole-diameter recommendations for proper load performance. Use appropriate personal protective equipment when drilling into masonry.