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The Grade 100 Swivel Eye Nut is a precision-engineered lifting component designed to provide a secure, rotating attachment point for heavy-duty overhead lifting. Unlike traditional fixed eye nuts (DIN 582), which are restricted to in-line pulls, this swivel version features a 360-degree rotation capability. This allows the eye to automatically align with the direction of the load, effectively eliminating the risk of accidental unscrewing or catastrophic bolt failure caused by side-loading or twisting forces.
Forged from quenched and tempered alloy steel, the Grade 100 Swivel Eye Nut offers a 25% higher Working Load Limit (WLL) than standard Grade 80 components, enabling the use of smaller, more ergonomic fittings without compromising safety. Each unit is designed with a high-tensile internal thread (M8 to M30) and is 100% individually proof-tested to 2.5 times the WLL. Finished with a high-visibility powder coating or zinc plating, it provides exceptional resistance to environmental corrosion and mechanical wear in the most demanding industrial settings.
Engineering for Dynamic Lifting Environments
In modern industrial rigging, loads are rarely lifted in a perfectly vertical line. The Grade 100 Swivel Eye Nut is engineered to address the inherent dangers of "side-pulling" on fixed hardware. By incorporating a heavy-duty swivel joint, the component "prevents bending moments on the mounting bolt because of the automatic alignment of the eye with the tension vector." This ensures that the lifting force is always transmitted as a pure tensile load, which is the strongest axis for any threaded fastener.
Advanced Metallurgy and Heat Treatment
The exceptional durability of TopOne Grade 100 components is rooted in advanced material science. We utilize Chromium-Nickel-Molybdenum (CrNiMo) alloy steel, a material selected for its superior hardenability and impact resistance. The Quenching and Tempering (Q&T) process is meticulously managed to ensure a "high-quality finish because of the controlled deoxidation and uniform heat distribution." This process results in a tempered martensite structure that provides "superior impact toughness because of the refined grain boundaries," preventing brittle failure even in sub-zero temperatures (-40°C).
Rigorous Testing and Safety Engineering
• 100% Proof Testing: Every swivel eye nut is proof loaded to 2.5 times the WLL. This "verifies the structural integrity of the swivel mechanism and the internal threads because of the application of controlled over-load."
• Fatigue Resistance: Engineered to withstand 20,000 cycles at 1.5 times the WLL, meeting the requirements for high-frequency lifting in automotive and aerospace manufacturing.
• Non-Destructive Testing (MPI): Components undergo Magnetic Particle Inspection (MPI) to ensure they are "free from surface and sub-surface defects because of the non-destructive testing of every forged body."
• Corrosion Protection: The high-visibility powder coating is "wear-resistant because of the electrostatic bonding process," protecting the alloy steel from oxidation in marine or industrial environments.
The following dimensions and load limits are based on international standards for Grade 100 swivel lifting points.
| Thread Size | Working Load Limit | Description | Weight (Lbs) | ||||||||
| A | B | C | D | E | K | F | L | CH | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M8 | 0.30 | 44.50 | 8.00 | 10.00 | 29.00 | 32.00 | 45.00 | 21.50 | 23.00 | 13.00 | 0.37 |
| M10 | 0.40 | 44.50 | 8.00 | 10.00 | 29.00 | 32.00 | 45.00 | 21.50 | 23.00 | 14.00 | 0.44 |
| M12 | 0.75 | 53.50 | 11.00 | 11.00 | 34.00 | 44.00 | 56.00 | 26.50 | 27.00 | 16.00 | 0.86 |
| M16 | 1.50 | 59.50 | 13.00 | 14.50 | 39.00 | 56.00 | 65.00 | 30.50 | 29.00 | 21.00 | 1.52 |
| M20 | 2.30 | 67.00 | 14.00 | 17.00 | 42.00 | 58.00 | 70.00 | 33.00 | 34.00 | 26.00 | 1.56 |
| M24 | 3.20 | 80.00 | 18.00 | 19.00 | 52.00 | 73.00 | 88.00 | 40.00 | 40.00 | 30.00 | 3.75 |
| M30 | 4.50 | 101.00 | 22.00 | 27.00 | 62.00 | 80.00 | 106.00 | 51.00 | 50.00 | 36.00 | 5.38 |
Name: Grade 100 Swivel Eye Nut
Package: Carton + Steel Pallet
