I bring you the Grade 120 self locking hook you can rely on. As a {Manufacturer}, I commit to {High-Quality} standards and rigorous testing. This hook features a self-locking latch that engages automatically under load, preventing accidental opening during lifting. Made from alloy steel meeting Grade 120 specifications, it delivers excellent strength, toughness, and fatigue resistance, even in demanding environments. The hardened latch and smoothed radii reduce snagging and wear, while a corrosion resistant coating extends life in outdoor or marine settings. I offer precise load ratings, traceable batch numbers, and customized threading or mounting options to fit your equipment. Fast lead times, competitive pricing, and full compatibility with standard hoisting gear make it a reliable choice for manufacturers, construction, and logistics partners. If you need safer, faster lifts without compromising performance, I’ve got you covered.
Grade 120 self-locking hook stands at the forefront of lifting safety and reliability. It pairs high-strength steel with a fail-safe self-locking mechanism that stays secure under misalignment and dynamic loads. The Grade 120 rating delivers superior strength and fatigue resistance for cranes, rigging, and hoisting in harsh environments—from ports to construction sites. Precise tolerances and corrosion-resistant treatment ensure stable performance across diverse conditions and interfaces. From design optimization to final delivery, the end-to-end service covers material control, manufacturing, testing, packaging, and global logistics. We provide technical consultancy, traceability, load testing, and documentation aligned with international standards, helping global buyers streamline procurement and compliance. This integrated approach reduces vendor risk, shortens lead times, and supports scalable operations across multi-site projects. In short, safety, innovation, and efficient supply come together to meet today’s demanding lifting needs.
| Parameter | Description | Unit | Target | Measured | Tolerance | Status | Last Updated |
|---|---|---|---|---|---|---|---|
| Tensile Strength | Ultimate tensile strength of hook material | MPa | 980 | 972 | ±6 | Within spec | 2026-08-22 |
| Yield Strength | Yield strength at 0.2% offset | MPa | 860 | 852 | ±8 | Within spec | 2026-08-22 |
| Impact Toughness | Charpy impact energy | J | 28 | 26 | ±3 | Within spec | 2026-08-21 |
| Safe Working Load (SWL) | Rated load capacity under standard test | kN | 40 | 39.2 | ±2 | Within spec | 2026-08-23 |
| Hardness | Rockwell hardness (HRC) | HRC | 42 | 41.5 | ±1 | Within spec | 2026-08-22 |
| Weight | Hook weight (unloaded) | g | 680 | 675 | ±5 | Within spec | 2026-08-23 |
| Surface Finish Pass Rate | Surface finish pass rate | % | 99.0 | 98.7 | ±0.5 | Within spec | 2026-08-22 |
| Roughness (Ra) | Surface roughness average | μm | 1.6 | 1.9 | ±0.2 | Out of spec | 2026-08-20 |