Throughbolts Hot Dipped Galv

Overview

Hot Dipped Galvanised (HDG) throughbolts deliver massive torque-controlled holding power with exceptional weather resistance. Coated to a minimum of 45 microns, these heavy-duty steel anchors are designed for solid, non-cracked concrete. They provide a fast "through fixing" solution for bolting down machinery, outdoor racking, and structural steelwork in damp or exposed environments.

How it works

Installing an HDG throughbolt is incredibly fast and efficient. Start by placing your metal bracket or machine exactly where it needs to go. Using a hammer drill, bore a hole directly through the fixture's clearance hole straight down into the solid concrete. Clear the dust out of the hole, then firmly tap the fully assembled anchor through your fixture and into the concrete until the washer sits flush. Finally, grab your torque wrench and tighten down the nut. This pulls the internal wedge upward, flaring the three-way sleeve tightly against the concrete for a rock-solid, permanent hold.

The Professional Choice for Exposed Environments

Serious Weather Protection

When installing exterior railings or outdoor warehouse racking, standard zinc plating simply cannot handle constant moisture. Rain and damp industrial environments will quickly strip thin coatings, leaving your structural anchors vulnerable to catastrophic rust.

That is where the Hot Dipped Galvanising process changes the game. These steel anchors are hot dipped to provide a heavy-duty coating of at least 45 microns, fully compliant with BS EN ISO1461:2009. This gives you the practical advantage of excellent long-term corrosion resistance for a fraction of the cost of marine-grade stainless.

Drill, Drop, and Secure

In commercial construction, time is money. Lifting a heavy metal structure, marking the drill holes, moving the steel away, and then hoping everything aligns later is incredibly inefficient.

Because these are true "through fixings," the diameter of the bolt exactly matches the drill hole you need to make. You can leave your heavy machinery or bracket exactly where it needs to sit, drill straight through its clearance hole into the concrete, and tap the anchor straight in.

Unyielding Expansion Grip

Once the anchor is seated, it acts as a highly reliable, torque-controlled fixing. As you apply a wrench to the nut, the internal mechanism pulls upward.

This action forces the rugged three-way expansion sleeve to aggressively flare out against the walls of your solid concrete (C20/25 to C50/60). You instantly get a permanent, mechanical lock that easily handles massive static structural loads.

Certified Safety for Commercial Sites

Working on large-scale sites means adhering to strict building regulations. You cannot guess when it comes to structural integrity, especially in emergencies.

These HDG throughbolts carry a Reaction to Fire Class A1 rating. Whether you are a facility manager bolting down production machines or a contractor erecting steel framework, you can trust these anchors to perform predictably and safely when it matters most.

Key Features

• Hot Dipped Galvanised (HDG) to a minimum of 45 microns for superior rust protection.
• Manufactured to BS EN ISO1461:2009 galvanising standards.
• Reaction to Fire Class A1 certified for maximum structural safety.
• Time-saving true-to-size "through fixing" design.
• Features a high-grip, three-way steel expansion sleeve.
• Torque-controlled installation for predictable holding power.