8N-2637 M20 ID Steel Flat Washer
Flat Washer
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 trust Cat fasteners to help you build, maintain or rebuild in most machine and shop applications worldwide.
Specifications
| Outside Diameter | 29.5 mm (1.161 in) |
|---|---|
| Inside Diameter | 21.3 mm (0.839 in) |
| Thickness | 1.6 mm (0.063 in) |
| Fits Bolt Size | M20 mm (3/4 in) |
| Material | Mild Steel |
| Gasket Type | Flat Washer |
Compatible Equipment
- Generator Sets: 3406B, 3406C, C7.1
- Motor Graders: 140H, 12H, 140G
- Track Loaders: 963, 824C, 824G, 826G, 816F
- Cold Planers: SE50 VT
- Dozers: D7H, D8N, D5H, D7G2, D6G2 XL, D8R, D6R, D7G, D7R, D6G, D4E, D6G2 LGP
- Excavators: 330 L, 330B, 637E, 637G, 350 L
- Wheel Loaders: R1300G, 966F, 972G, 980G
Additional information
| Machine Model | 12H, 140G, 140H, 330 L, 330B, 3406B, 3406C, 350 L, 637E, 637G, 816F, 824C, 824G, 826G, 963, 966F, 972G, 980G, C7.1, D4E, D5H, D6G, D6G2 LGP, D6G2 XL, D6R, D7G, D7G2, D7H, D7R, D8N, D8R, R1300G, SE50 VT |
|---|---|
| Equipment Type | Excavators, Wheel Loaders, Track Loaders, Dozers, Motor Graders, Cold Planers, Generator Sets |
| Part Source | Genuine OEM |








