Description

Gloma Nautica Black Shackles

Gloma Nautica’s Black Shackles combine the mechanical strength of marine-grade AISI 316 stainless steel with a protective black coating, offering professionals a robust and discreet solution for rigging under demanding marine, tactical, and aesthetic conditions. Designed and forged in Spain under Gloma’s exacting production standards, these shackles offer both durability and style (glomanautica.com).

Unlike standard bright-polished shackles, the black finish provides a low-reflection surface that reduces glare—a key benefit in tactical sailing, special operations, night sailing, and other visually sensitive applications. Beyond appearance, the coating adds an extra layer of resistance against saltwater corrosion, UV degradation, and environmental wear. The result is a premium fastening component ideal for extended use in harsh outdoor conditions.

Each shackle is hot- or cold-forged using AISI 316 stainless steel—a molybdenum-alloyed steel known for its exceptional corrosion resistance and mechanical strength. Gloma’s forging process creates a uniform internal grain structure, significantly improving fatigue resistance and enabling the shackle to deform visibly before failure under overload conditions—a vital safety feature in dynamic load applications.

The black coating is professionally applied to ensure adherence to the base metal without compromising the shackle’s dimensional precision or mechanical reliability. Unlike paint or soft polymer finishes, Gloma’s finish is designed to withstand marine exposure, friction, and heavy use without chipping or fading. This makes the shackles ideal for high-contact applications including lifelines, rigging blocks, harness attachment points, and gear lashings.

Available in multiple sizes and formats—including straight, bow, long, and twisted designs—Gloma Nautica Black Shackles cover a wide range of operational needs. Each variant is precision-machined to maintain critical dimensions such as pin diameter, jaw width, and load-bearing profile. Screw-pin closures are threaded with exact tolerances for secure fastening and vibration resistance, even during long-term deployment.

These shackles are used by offshore crews, naval operators, yacht riggers, and rescue professionals who demand a dependable, low-visibility solution with the added resilience of forged stainless steel. Whether you are securing deck gear, building a tactical harness system, or outfitting a blacked-out vessel, these shackles offer peace of mind through performance and long-term reliability.

Manufactured exclusively in Europe under Gloma Nautica’s full traceability policy, each shackle batch is tested for dimensional conformity, steel quality, and coating adhesion—ensuring it meets the highest standards of safety and longevity.