Therwen L-Track Double-Lug Threaded Studs 10-Pack — 3/8"-24 x 40mm Zinc-Plated Carbon Steel, 2,200 lb SWL

Therwen 10-pack L-track double-lug threaded studs are heavy-duty bolt-down tie-down fittings that convert standard L-track rails into secure anchor points rated for a 2,200 lb safe working load and 5,500 lb break strength.

These carbon-steel, zinc-plated threaded studs let you add reliable anchor points to L-track systems in trailers, trucks, vans and aircraft seating rails. Each stud is designed to lock into standard L-track slots quickly and provide a threaded mounting point for bows, eye bolts, clevises, or other cargo-securing hardware. Sold in a set of ten, they accommodate 3/8"-24 threaded fasteners and measure roughly 40 mm long, making them a practical upgrade for freight, motorcycle transport, ATV hauling and general cargo control.

How do these studs attach to an L-track rail?

Installation is straightforward and requires no special tools: lift the end clamp, align the two bottom discs with the L-track slots, slide the stud until it centers between slots, and release the clamp to lock it in place. The design holds securely under tension when properly seated in the rail.

• Step-by-step lock-in: lift clamp, insert discs, slide, then release.
• Fits most recessed and standard aluminum L-track styles.
• No welding or drilling required when used with existing L-track rails.
• Threaded 3/8"-24 top accepts many common cargo attachments.

What strength and materials should I expect?

Each stud is forged from carbon steel and finished with zinc plating for corrosion resistance and smooth operation. They are engineered to support a safe working load of approximately 2,200 pounds and have a published break strength near 5,500 pounds when correctly installed in compatible rails.

• Carbon-steel construction for long-term durability.
• Zinc-plated surface reduces rust and abrasion.
• Rated ~2,200 lb working load, ~5,500 lb break strength.
• Suitable for heavy cargo like motorcycles, ATVs, pallets.

Which applications are these studs best suited for?

These threaded studs create versatile anchor points anywhere an L-track is installed. They are ideal for commercial transport, moving equipment, and recreational vehicle tie-downs, providing a bolt-down option for attaching straps, hooks or shackles.

• Trailer and truck bed cargo restraint.
• Van and cargo box retrofit with existing L-track.
• Aviation seat-track compatible uses and retrofit anchor points.
• Securing motorcycles, ATVs, ladders, pallets and crates.

What comes in the package and what sizes fit?

The pack contains ten identical threaded studs, each about 40 mm (1.57 in) long with a 3/8"-24 thread. That standardized size makes them compatible with a wide range of aftermarket hardware and common fasteners for cargo control.

• 10 pieces per pack for multiple anchor points.
• Stud length ~40 mm (1.57 in), thread 3/8"-24.
• Designed for most L-track slot spacings and profiles.
• Use with straps, D-rings, shackles and bolts rated to match load.

Who is this for: The Therwen threaded L-track studs are aimed at fleet operators, contractors, movers, mechanics and outdoor enthusiasts who already use L-track systems and need dependable, bolt-down anchor points. If you install or retrofit cargo rails in trailers, truck beds, vans or aircraft seating, this 10-piece set supplies uniform, heavy-duty connection points without drilling or welding.