Product Description
Overview
The SS-N4750 is a 4.75 tons, 3/4" nominal RIGPRO anchor shackle for connecting slings, hoists, hardware, and loads in professional rigging systems. This safety bolt and nut version uses a forged carbon steel body with a Dacromet-finished alloy pin, giving crews a marked, traceable connector for repeated entertainment and industrial rigging work.
Why It Matters
Bolt-type shackles are chosen when a connection may stay loaded or installed for a longer period. The nut and split cotter pin add security against the pin backing out, which is exactly why this style is preferred for semi-permanent venue, grid, and long-duration event setups.
Key Features
- 4.75 tons working load limit with 3/4" nominal size is permanently marked on the body, helping crew check the connector before it enters the rig.
- Forged Carbon Steel construction with 6 times minimum ultimate-load ratio gives the correct strength family for this size and capacity.
- Safety Bolt and Nut pin style adds nut-and-cotter retention for longer-term connections.
- DNV and ABS type approval plus US Federal Specification RR-C-271D Type 4 A compliance support use in demanding professional rigging inventories.
- 100 % magnetic-particle crack detection and 20,000-cycle fatigue rating at 1.5 times working load limit give the shackle a defined inspection and performance baseline.
Additional Technical Notes
- WLL Reduction: 0 % at 5°, 30 % at 45°, 50 % at 90° from centreline
- Quality Control: 100 % magnetic-particle crack detection
- Fatigue Rating: 20,000 cycles at 1.5 times WLL
- Marking: Size, WLL, and batch code permanently marked for certificate traceability
Applications
A practical connector for venue grids, truss suspension, motor points, wire rope sling connections, and installations where the shackle may remain in place for extended periods under controlled inspection.
Compatibility
Use with round slings, wire rope slings, chain hoists, and anchorage hardware rated for the same or higher capacity; apply the catalog WLL reduction when side loading at 45° or 90°.
Frequently Asked Questions
Why pick the bolt-and-nut version instead of a screw pin
Choose the bolt-and-nut style when the shackle may stay installed or loaded for longer periods and you want the extra retention of the nut and cotter pin.
Is side loading allowed if the sling does not pull straight
Side loading reduces capacity. Use the catalog reduction values, including 30 % reduction at 45° and 50 % reduction at 90° from the centreline.
Why does this size look close to another shackle in the same family
This is the 3/4", 4.75-ton carbon-steel bolt-type shackle in the family, so match it by both size and WLL rather than by body shape alone.