ULTRA Products by Boyut – exclusive European distribution by cromox®

cromox® NAUTIC Shackle

Robust quick connect shackle in AISI 318LN Duplex for secure anchor chain connections

A shackle is a safety-critical link in any anchoring setup. The cromox® Nautic shackle is designed for reliable connections on board, for example between anchor and anchor chain. Built from AISI 318LN Duplex stainless steel and finished with a shot blasted surface, it is made for long service life in salt water environments.

NAUTIC shackle
NAUTIC shackle
NAUTIC shackle

Our cromox® Nautic shackle in Detail

The cromox® Nautic shackle is a stainless-steel quick connection shackle designed to be robust and dependable in marine use. It provides a secure connection between two components where failure is not an option, such as the interface between anchor and chain.

A key functional benefit is the pin security concept. The pin is designed to be doubly secured against becoming loose. When secured, it can still be rotated, enabling a flexible yet reliable connection in practical on-board handling.

Key performance features of the cromox® Nautic shackle

  • AISI 318LN Duplex stainless steel for strength and corrosion resistance 
  • Shot blasted surface to support durability in marine exposure 
  • Double safety concept at the pin to reduce the risk of accidental release 
  • Pin designed for secure locking with practical handling during installation

Design and construction

The Nautic shackle combines material selection with a safety-focused locking concept. In marine applications, corrosion resistance is critical because moisture and seawater constantly attack exposed metal surfaces. Stainless steel resists corrosion through a passive surface layer that helps protect the material over time.

Selecting the right cromox® Nautic shackle model

cromox® Quick Connection Shackle CSVS, Grade 60 PLUS

AISI 318LN Duplex, tested, blasted


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