Rigging hardware inspection under ASME B30.26: shackles, hooks, swivels and eyebolts
ASME B30.26 sets three inspection levels for detachable rigging hardware: initial before first use, frequent each day or before use, and periodic at no more than yearly intervals. The removal criteria, including 10 percent wear, and why the standard requires no written records yet a fleet still needs them.
By Hovermarks team
Quick answer. ASME B30.26 covers detachable rigging hardware: shackles, links, rings, swivels, turnbuckles, eyebolts, hoist rings, wire rope clips, wedge sockets and rigging blocks. It sets three inspection levels: initial before first use, frequent each day or before each use, and periodic at intervals set by service, never longer than a year. Hardware comes out of service on any removal criterion, including wear over 10 percent of the original body or pin dimension, any bending, cracking or distortion, heat damage, or a missing or illegible rated load marking. B30.26 itself requires no written records.
Rigging hardware is the most numerous and least tracked item in most lifting fleets. A site with three cranes can easily hold two hundred shackles, many of them identical, moving between gangs, trucks and job sites. The crane gets a periodic inspection with a signed report. The shackle on its hook often has no identity at all.
What B30.26 covers
The standard applies to detachable hardware used in load handling activities:
- shackles
- links and rings, including master links
- rigging blocks
- swivels
- turnbuckles
- eyebolts and hoist rings
- wire rope clips and wedge sockets
- load-indicating devices
Slings belong to B30.9 and hooks to B30.10. A shackle used to make up a sling assembly is still B30.26 hardware.
The three inspection levels
- Initial. Before new, altered, modified or repaired hardware is first used, a designated person verifies it against B30.26, including its identification and rated load.
- Frequent. A visual inspection by the user or a designated person each day or before each use, looking for the removal criteria.
- Periodic. A complete inspection by a designated person, at an interval based on frequency of use, severity of service, the nature of the lifts and experience with similar hardware, and not exceeding one year.
The one-year ceiling matters. A shackle in daily use in a corrosive yard may need a far shorter interval, and the designated person is expected to set it, but no item of rigging hardware can go more than a year without a periodic inspection.
The removal criteria
Hardware is removed from service when it shows conditions such as:
- missing or illegible manufacturer's name or trademark, or rated load (working load limit) marking
- heat damage, including weld spatter or arc strikes
- excessive pitting or corrosion
- bent, twisted, distorted, stretched, elongated, cracked or broken load-bearing components
- excessive nicks or gouges
- wear exceeding 10 percent of the original dimension of the body or pin
- a damaged, missing or replaced-with-wrong-part pin or bolt
- other conditions that cause doubt about continued use
It returns to service only with the approval of a qualified person. Replacement pins must be the manufacturer's, matched to the body.
No records required, and why fleets keep them anyway
B30.26 does not require written records of frequent or periodic inspections. That is a deliberate choice in the standard, and it is also the reason rigging hardware is so often unprovable. When an OSHA inspector, an insurer or a general contractor asks when a particular shackle was last inspected, "we inspect them all yearly" is not an answer without a record that ties an inspection to that shackle.
The workable fix is an identity per item: a tag, an inspection history against it, and a next-due date. Batch identities ("box of 3/4-inch shackles, inspected March") collapse the moment one item leaves the box.
Where Hovermarks fits
Hovermarks gives each item of rigging hardware its own QR-tagged identity with its type, rated load and service conditions. Periodic inspections run as configurable checklists on a phone on the interval you set, a failed criterion raises a defect against that item, and the record stays with the shackle wherever it goes. The crane and rigging solution shows how hooks, slings and hardware sit in one register.