ISO 2415:2022

Overview

ISO 2415:2022 - Forged shackles for general lifting purposes - Dee shackles and bow shackles - defines the general characteristics, performance and preferred dimensions of forged dee and bow shackles. The standard covers shackles with working load limits (WLL) from 0.5 t to 120 t, in grades 6, 8 and 10, and specifies requirements to ensure interchangeability and compatibility of components for use between ‑20 °C and 200 °C.

Key Topics

• Scope & definitions: clear terminology for shackle components (body, crown, eye, pin), dee vs bow geometry, WLL and grade.
• Form and dimensions: preferred dimensions and measurement points for dee and bow shackles, and hole diameters to enable compatibility with other lifting hardware.
• Types of pins: typical pin types (e.g., screwed pin with eye and collar, bolt-type pin with nut and cotter pin) and associated requirements for secure assembly.
• Mechanical properties & tests:
  • deformation resistance, breaking force (static strength) and fatigue resistance
  • proof force testing, hardness checks
  • Charpy impact testing for toughness where applicable
  • type testing and manufacturing/acceptance tests
• Material & heat treatment: material grade criteria, heat treatment requirements for grades 6, 8 and 10, and selective toughness assurance methods.
• Workmanship & NDT: forging quality, finishes and non‑destructive testing methods (penetrant and magnetic particle testing).
• Marking, documentation & instructions: marking of shackle body and pins, manufacturer’s certificate, and user instructions including safe‑use guidance (Annex B).

Applications

ISO 2415 is directly applicable to the specification, manufacture, testing and safe use of forged shackles used in lifting and rigging. Practical uses include:

• Selecting compatible shackles for slings, hooks and lifting systems
• Specifying procurement requirements in construction, marine, oil & gas, heavy industry and logistics
• Quality control and inspection of forged lifting accessories
• Authoritative reference for safety managers, riggers and lifting equipment certifiers

Keywords: forged shackles, dee shackles, bow shackles, ISO 2415, working load limit, WLL, lifting hardware, shackle grades, shackle testing, shackle dimensions.

Related Standards

Normative references in ISO 2415 include (selection):

• ISO 148-1 - Charpy pendulum impact test
• ISO 261 / ISO 263 - Screw thread general plans
• ISO 3452-1, ISO 9934-1 - Penetrant and magnetic particle NDT principles
• ISO 7500-1 - Calibration of testing machines
• EN 10228-1 / EN 10228-2 - NDT of steel forgings

Use ISO 2415:2022 as the baseline for specifying safe, interchangeable forged shackles and aligning manufacturing/testing processes with international lifting equipment practice.