2M-2570 1/2″-20 Hex Lock Nut
Lock Nut
Description
Cat® fastener parts are designed for specific applications based on size, strength, clamp load and past performance, information other manufacturers do not have. They are carefully selected to last until machine rebuild or end of life. Non-Cat hardware and fasteners may appear to fit your machine, but no one else knows your equipment the way we do.
Features
- Cat fasteners are manufactured to precise specifications for durability, reliability and high efficiency
- Strength and Quality – Fasteners meet or exceed ISO, ASTM, ASME and SAE requirements.
- Cat bolts, nuts and washers are specifically designed to work together as a system to maximize clamping force.
- Coating meets the special requirements of different applications (RoHS compliant).
Applications
Cat bolts form a high-performance system with mating washers and nuts to produce consistent, high clamping force. You can rely on Cat fasteners to help you build, maintain or rebuild – for most machine and shop applications around the world.
Specifications
| Class or Grade | SAE J995 Grade 8 |
|---|---|
| Thread Size (Diameter × Pitch) | 1/2×20 mm |
| Hardened | None |
| Thread | Fine Thread UNF |
| Hole Thread Pitch | 20 |
| Thread Direction | RH |
| Drive Chain | 19.05 mm (3/4 in) |
| Nut Width – 3 | 3/4 in |
| Surface Finish | Zinc Plated |
| Thread Size | .500 mm (0.02 in) |
| Locking Mechanism | Nylon Insert |
| Thickness | 15.5 mm (0.61 in) |
| Height | 0.61 in |
| Nut Model | Lock Nut |
| Thread Size (in – TPI) | 1/2-20 in |
| Material | STEEL |
| Material Description | SAE J995 Grade 8 |
| Coating | Zinc Plated |
Compatible Equipment
- Compactors: CS-533C, CS-583D
- Dozers: D10, D4G, D5G, D3G
- Wheel Loaders: 924HZ, 928HZ, 924K, 924GZ, 950, 938K, 928G, 910
- Off-Highway Trucks: 793F, 740, 735, 793D, 7495, 793








