RED HEAD Heavy-Duty Hex-Head Screw Anchor

The RED HEAD LDT-3840 is a heavy-duty concrete screw anchor used to fasten equipment, machinery, and structural elements to concrete, brick, or block. Its self-threading tip and Grade 5 steel construction provide reliable holding power in solid and hollow base materials across industrial, commercial, and infrastructure applications.

The RED HEAD LDT-3840 is a 4-inch overall length, 3/8-inch diameter concrete screw anchor made from Grade 5 steel. It features an external hex drive, a self-threading tip, and is removable. Supplied in a 50-pack, it uses inch-system measurements and is designed for heavy-duty fastening in concrete.

3G Electric supplies the RED HEAD LDT-3840 screw anchor to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source and deliver genuine RED HEAD fasteners along with specialist expertise in combustion, pumps, and controls for brands like FBR and Interpump.

Drill a hole in the concrete using a carbide bit matching the anchor diameter, then clean out dust. Insert the RED HEAD LDT-3840 anchor through the fixture and tighten with a hex driver until the head contacts the surface. Do not overtighten. The self-threading tip cuts threads into the base material for a secure, removable hold.