Connect, lock, release

Double ended manual twistlock

This manual double-ended twistlock locks ISO corner castings together for safe vertical stacking. Throw the hand lever from side to side to lock or release, with lever position giving a clear locked/unlocked indication.

Description

The workhorse of container securing, this double-ended twistlock has been the standard connector for bulk-carrier decks and shore stacking for decades, wherever stack height keeps the lever within reach. A single lever throw locks or frees the connector, and its position tells the operator at a glance whether it's engaged. The casting is ZG270-500 steel, hot-dip galvanised to stand up to marine and yard conditions over the long term. For a lower-cost four-corner setup, pair it with dummy stacking cones instead of a full set of four locks. Several manufacturers' models are stocked, each carrying its own SKU confirmed at quotation, and every one fits ISO 1161 corner castings on standard 20 ft and 40 ft containers.

Features

• One-handed lever throw locks or releases the connector
• Lever position gives an instant locked/unlocked visual check
• Combine with dummy stacking cones for a lower-cost four-corner set-up
• Stocked from several manufacturers — model-specific SKU confirmed at quotation
• Fits all ISO 1161 corner castings, 20 ft and 40 ft containers

Where it is used

Vertical container stacking aboard ship and ashore; container billboards and multi-storey container structures; combined with stacking cones for economical four-corner securing.

Specifications

Material	ZG270-500 cast steel
Load Rating (SWL)	250 kN / 210 kN (SWL tension/shear) — MBL 500 kN / 420 kN
Weight	4.8 kg (model dependent)
Finish / Coating	Hot dipped galvanized
Standard	ISO 1161 (corner casting interface)

Documents & extras

• Datasheet and technical drawing — request with your quote or email us.
• 3D model (STEP) available on request.