
Dovetail twistlock
Weldable dovetail twistlock for securing containers to structures or structures to containers; available in 45° and 55° configurations, left-hand (standard) and right-hand options.

Forged D-ring on a turnfoot base — the foot drops into a raised or flush ISO deck socket and locks with a quarter turn, secured by a locking pin, giving a rated removable lashing point wherever a deck socket exists.
No prices online — quotations are prepared per application and quantity, usually within one business day; a more involved enquiry may take a little longer.
| Material | Forged steel |
|---|---|
| 36 t variant | SWL 18 t · MBL 360 kN · 6.0 kg |
| 50 t variant | SWL 25 t · MBL 500 kN · 7.7 kg |
| Interface | Raised or flush ISO deck socket — see the two preceding pages |
| Finish / Coating | Hot dip galvanised |
| Pattern reference | GLS AL-L1/36 and AL-L1/50 |
Load ratings are as published in the TLA 2026 catalogue. Site-specific ratings and certification: on request.
Removable lashing points in ISO deck sockets; project cargo securing; lashing containers and heavy loads on ships, trailers and flatbeds.
The turnfoot D-ring completes the deck-socket system on the preceding pages. Its foot engages the ISO socket exactly as a twistlock does, a quarter turn locks it, and a pin secures the position — so wherever a socket is cast or welded in, the deck gains a certified lashing point that can be removed again. Chains or straps feed directly through the forged ring. Two sizes are stocked: 36 t and 50 t, named by minimum breaking load, on the GLS AL-L1 pattern.
⬇ Datasheet TLA-ANC-TFDR-36 (PDF · draft A)
⬇ Datasheet TLA-ANC-TFDR-50 (PDF · draft A)
◫ Request the 3D model (STEP) — WhatsApp engineering
◇ Technical drawing — included in the datasheet above.

Weldable dovetail twistlock for securing containers to structures or structures to containers; available in 45° and 55° configurations, left-hand (standard) and right-hand options.

Forged D-ring welded to a dovetail plate that slides into a dovetail slipper, giving a rated, removable lashing point wherever a slipper is already installed.

Weldable dovetail slipper (45° and 55°, single and double) providing a permanent socket for matching dovetail twistlocks, allowing containers to be repeatedly mounted and removed without a permanent twistlock.

ABD-D1 bolted-on dovetail twistlock — a single-casting chassis on a 16 mm base plate that bolts to a concrete foundation or steel structure, securing a container with no permanent modification to the container itself.