RED HEAD Screw Anchor: 4 in Overall Lg, 3/8 in Dia, Steel, External Hex, Hex, Steel
The RED HEAD LDT-3840 is a heavy-duty hex-head concrete screw anchor with a 4-inch overall length and 3/8-inch diameter. This Grade 5 steel, self-threading anchor features an external hex drive and is removable…
SKU 3G-OTH-536384
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Product Description
The RED HEAD LDT-3840 is a heavy-duty hex-head concrete screw anchor with a 4-inch overall length and 3/8-inch diameter. This Grade 5 steel, self-threading anchor features an external hex drive and is removable, supplied in a 50-pack. 3G Electric interprets demand for this fastener across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like FBR, Interpump, Riello, Beckett, Schneider, ABB, Siemens, SKF, Festo and Fluke.
Frequently Asked Questions
What is the RED HEAD LDT-3840 screw anchor used for?
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.
What are the specifications of the RED HEAD LDT-3840?
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.
Where to buy RED HEAD LDT-3840 screw anchors worldwide?
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.
How to install a RED HEAD concrete screw anchor?
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.
RED HEAD Products
3G Electric supplies RED HEAD heavy-duty hex-head screw anchors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









