2P-4339 7/16″-28 Hex Lock Nut
Hex Head 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 hardened washers and nuts to produce consistent, high clamping force. You can trust Cat fasteners to help you build, maintain or rebuild in most machine and shop applications worldwide.
Specifications
| Thread Direction | RH |
|---|---|
| Drive Chain | 14.2875 mm (0.563 in) |
| Coating | Zinc Plated With Topcoat Sealer, 3.8 Micron Minimum Thickness |
| Thread Size | .437 mm (0.017 in) |
| Material Description | Manufacturer Standard Steel |
| Hole Thread Pitch | 28 |
| Material | Alloy Mixed: Metal |
| Thread Size (Diameter × Pitch) | 7/16×28 mm |
| Thickness | 2.38125 mm (0.091 in) |
| Nut Model | Hex |
| Thread Size (in – TPI) | 4/9-28 in |
Compatible Equipment
- Track Loaders: 953, 816F, 963, 824C
- Cold Planers: TH360B
- Compactors: 816, 814, CS11, CS-54, CS-56, CS-583D, 815, CS-563E, CP11 GC, CS-533E
- Excavators: 307E, 303.5E2 CR, 308E, 306E2, 305E2 CR, 120 GC, 637E, 416F2, 434F2, 432, 313F LGC, 350 L
- Asphalt Pavers: AD45
- Motor Graders: 140 GC, 120, 140G, 140H, 120H, 160K, 12K, 16, 140K, 12H, 16H
- Dozers: D6R, D7R, D7H, D6N, D7G, D5M, D4E, D6R II, D6R III, D9R, D8T, D9T, D6T, D6M, D7R II, D8L, D8R, D6G2 XL, D5N, D5H, D11N, D10N, D11R, D4G, D9N, D3G, D10T, D10, D10R, D11T, D6G2 LGP, D8N, D7G2, D5G, D6R XL, D6G, D9L
- Mini Excavators: 308E2, 305.5E2, 307, 305E2, 307E2, 305.5E, 305.5 GC, 307B
- Wheel Loaders: 990H, 836, 966F, R2900G, 950, 992C, 992D, 988F, R1700G, R3000H, R1300G, R1600H, R2900 XE, R1700 II, 834
- Off-Highway Trucks: 785D, 773E, 777D, 725, 730, 777E, 793D, 773D, 789D, 771D, 789, 793, 777, 773, 785, 735, 740
Additional information
| Machine Model | 120, 120 GC, 120H, 12H, 12K, 140 GC, 140G, 140H, 140K, 16, 160K, 16H, 303.5E2 CR, 305.5 GC, 305.5E, 305.5E2, 305E2, 305E2 CR, 306E2, 307, 307B, 307E, 307E2, 308E, 308E2, 313F LGC, 350 L, 416F2, 432, 434F2, 637E, 725, 730, 735, 740, 771D, 773, 773D, 773E, 777, 777D, 777E, 785, 785D, 789, 789D, 793, 793D, 814, 815, 816, 816F, 824C, 834, 836, 950, 953, 963, 966F, 988F, 990H, 992C, 992D, AD45, CP11 GC, CS-533E, CS-54, CS-56, CS-563E, CS-583D, CS11, D10, D10N, D10R, D10T, D11N, D11R, D11T, D3G, D4E, D4G, D5G, D5H, D5M, D5N, D6G, D6G2 LGP, D6G2 XL, D6M, D6N, D6R, D6R II, D6R III, D6R XL, D6T, D7G, D7G2, D7H, D7R, D7R II, D8L, D8N, D8R, D8T, D9L, D9N, D9R, D9T, R1300G, R1600H, R1700 II, R1700G, R2900 XE, R2900G, R3000H, TH360B |
|---|---|
| Equipment Type | Excavators, Mini Excavators, Wheel Loaders, Track Loaders, Dozers, Motor Graders, Off-Highway Trucks, Compactors, Asphalt Pavers, Cold Planers |
| Part Source | Genuine OEM |








