8T-5439 6 mm Thick Hard Washer
Cat® hard washer designed for M20 fasteners, preventing the fastener from sinking into the material and distributing the load more evenly.
Description
Cat bolts form a matched system with mating hardened washers and nuts to produce consistent, high clamping force.
Specifications
| Thickness – 3 | 6 mm |
|---|---|
| Inside Diameter | 22 mm (0.866 in) |
| Coating Finish Note | Caterpillar is changing many washers from zinc plating to a zinc flake coated finish. The new coating increases corrosion protection to 720 hours. While existing stock of the current finish is being used up, you may receive washers with either finish during the sell-through period. |
| Outside Diameter (OD) – 2 | 45 mm |
| Surface Finish | Zinc Flake |
| Inside Diameter (ID) – 1 | 21.5 mm |
| Outside Diameter | 45 mm (1.772 in) |
| Hardened | Yes |
| Material | HARDENED STEEL |
| Gasket Type | Flat Washer |
| Fits Bolt Size | M20 mm (3/4 in) |
| Coating | Zinc flake provides moderate to high corrosion protection and repeatable assembly performance through built-in lubrication. Salt spray resistance: 720 hours with no red rust. Coating color – black (M12 and smaller), gray (larger than M12). |
| Thickness | 6 mm (0.236 in) |
Compatible Equipment
- Generator Sets: 3516C, G3516C, 3512B, 3406C, 3512E, C9, G3516
- Track Loaders: 953D, 826G, 963K, 826K, 816F, 834H, 826H, 953K, 953, 994K, 824G, 982, 972, 963D, 824C, 973K, 963, 992, 993, 995
- Cold Planers: PM620, PM622, PL87, PL83, PL61, PL72, TH417D, TH360B, SE60 VT XW, SE50 VT
- Compactors: 824K, 825K, 834K, CS12, CS-56, CS54B, CP54B, CP12 GC, CP56B, CB-335D, CS-54, CS79B, CS-563E, CB-44B, CS74B, CS78B, 815, CS11, CS68B, CS56B, CS12 GC, CS7, 814, CP11 GC, 816, CS-583D, CB-434D, CB10, C-9, CS64B, CS-54B, CS-533E
- Engines: C15, C32, C7, C13, C11, C27, C18, C175-16
- Excavators: 320D, 303.5E2 CR, 305C CR, 305, 303C CR, 3456, 390D L, 374D L, 305E2 CR, 320C, 320D FM, 336E L, 336F L, 325D L, 329D L, 325B L, 120 GC, 336F L XE, 336F, 325C, 330C, 325C L, 336E H, 320D L, 336F LN, 320B, 336E LH, 637K, 330 L, 330D, 325B, 385C L, 3516B, 385C FS, 325D, 336E LN, 330C L, 336E, 3508B, 434F2, 432, 428F, 345 GC, 365B, 390D, 385C, 6020B, 349E L, 3512C, 385B, 416E, 349E L VG, 365B L, 6060, 6015B, 416F2, 350 L, 345C, 365C, 3516E, 349E, 365C L, 345B, 302.7CR, M325D L MH, SE60 V XW, 303.5CR, 303CR, 6030, 305 CR, 6015
- Asphalt Pavers: AP-600D, AP655F L, AD45, AD30, AP655F, AP300F, AP355F, AD63
- Skid Steer Loaders: 246D3, 262D, 289D3, 232D3, 246D, 239D3, 242D3, 272D3, 236D, 279C, 249D3, 259D3, 262D3, 262C, 24, 299D3 XE, 236D3, 232D, 272D3 XE, 226D3, 246C, 236B3, 216B3
- Motor Graders: 160K, 120, 16M3, 14, 18, 12K, 16, 140K
- Wheel Excavators: IT14G
- Dozers: D6T, D6R LGP, D9R, D8T, D11T, D9, D7E, D8, D6R XL, D6R, D7, D7R II, D7G2, D6T LGP, D6R III, D6G2 XL, D6M, D5M, D6R II, D8R, D6N, D7R, D10T, D10R, D9T, D6G2 LGP, D5N, D6K2, D7G, D10
- Compact Track Loaders: 299D3, 279D3
- Mini Excavators: 308, 303.5E, 303.5D, 305.5E, 303.5C, 305E2, 305.5E2
- Wheel Loaders: 980G, 962G, 972G, 980L, 950 GC, 966H, 938M, 924HZ, 988K, 924K, 980H, 962L, 966K, 972H, 972L, 938K, 950H, 928G, 950G, 836, 966L, 924GZ, 950L, 990H, 966, 950, 910, 906K, 986H, 988H, 988G, 928HZ, 966F, RM500B, 980, 834, 926M
- Off-Highway Trucks: 797F, 793D, 773F, 735, 740B, 740, 725C2, 725, 793F, 730, 740 GC, 745C, 773, 745, 789D, 798 AC, 789, 793, 775G, 777
