8T-7971 13.5 mm ID Hardened Washer
Cat® hard washers are rigid, flat discs that distribute loads evenly and prevent surface damage during fastening
Description
Cat bolts form a matched system with mating hardened washers and nuts to produce consistent, high clamping force.
Specifications
| Inside Diameter | 13.5 mm (0.531 in) |
|---|---|
| Thickness – 3 | 5 mm |
| Inside Diameter (ID) – 1 | 13.5 mm |
| 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 | 25.5 mm (1.004 in) |
| Surface Finish | Zinc Flake |
| Outside Diameter (OD) – 2 | 25.5 mm |
| Hardened | Yes |
| Material | HARDENED STEEL |
| Gasket Type | Flat Washer |
| Fits Bolt Size | M12 mm (1/2 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 | 5 mm (0.197 in) |
Compatible Equipment
- Generator Sets: 3516C, 3406B, 3512B, 3512E, G3516, G3516C, 3406C, C4.4, C9
- Track Loaders: 816F, 990K, 953D, 824C, 963K, 982, 834H, 963D, 994K, 963, 953K, 972, 953, 992, 995, 826K
- Cold Planers: PM622, PM620, PL83, PL72, PL87, SE50 VT, PL61, SE60 VT XW, TH55-E70
- Compactors: CS12 GC, CS11, CB-66B, 834K, CB2.7 GC, CB2.5 GC, CC2.7 GC, CS12, CS68B, CB-36B, 816, CP12 GC, CB-64B, CP11 GC, CB-34B, CC-34B, CS7, CS78B, CP56B, CB2.9, CB2.7, CB2.5, CS56B, CS74B, CS-563E, CS-583D, CW-34, CW-16, CS54B, CS79B, CP54B, CS-56, CS-54, CB16, CB-24B, CB13, C-15, CB15, CB10, CS64B, CS-54B, CS-533E
- Engines: C32, C27, C15, C13, C175-16, C18
- Excavators: 326D2 L, 320D2, 320D, 329D2 L, 307.5, 303.5E2 CR, 329D, 336D2, 326D2, 303, 390D L, 390F L, 374F, 374D L, 330, 305, 336D, 349D2, 3456, 349D, 349D2 L, 329D2, 308E, 330D L, 316 GC, 349F L, 313 GC, 313, 374, 305E2 CR, 336D L, 323D L, 326D L, 312D2 L, 330D2 L, 315F LCR, 340, 320D L, 330 L, 336E LH, 313D2 GC, 336E, 320C, 336, 323D2 L, 324D L, 336D2 L, 314D CR, 336E L, 314D LCR, 320D2 L, 312C L, 329D L, 336 GC, 315C, 657G, 302.7CR, 320D3, 3512C, 352, SE60 V XW, 324D, 325D L, 335F LCR, 336F LN, 320D FM, 336F L, 330D2, 330D, 312D, 318D2 L, 336F, 330C L, 325B L, 315D L, 312D2 GC, 311D LRR, 313D2, 328D LCR, 320D GC, 329E L, 637K, 385C L, 340D2 L, 345C, 390F, 349, 345D L, 6015B, 621K, 345C L, 637E, 349E L VG, 385C FS, 434F2, 365C L, 390D, M325D L MH, 335, 3516E, 320 GX, 395, 323 GX, 305 CR, 320D3 GC, 325C, 320D2 GC, 312D2, 313F LGC, 312D L, 336D2 GC, 330B, 336F L XE, 320B, 330C, 340D L, 349E L, 352F, 385C, 349D L, 621H, 326, 313 GX, 312 GX, 6030, 316 GX, 303.5CR, 303CR, 312 GC, 350, 432, 330GC, 355, 313F L, 336E H, 325D, 312C, 6015, 315, 3516B, 333, 312E, 312E L, 329E, 336E LN, 325, 6040, 120 GC, 365C, 330 GC, 6060, 318D2, 318D L, 323D, 336D2 XE, 428F, 313D, 313D2-GC, 345B, 374F L, 3101, 345D, 349E, 350MHPU, 3508B, 323D2, 312F
- Asphalt Pavers: AD45, AP655F, AP-600D
- Skid Steer Loaders: 236D3, 232D3, 24, 232D, 226D3, 236D, 242D3, 259D3
- Motor Graders: 12H, 12K, 120H, 16, 18, 140K, 140G, 16M3, 140 GC, 120, 14, 14M, 16M, 140H, 349 GC, 16H, 160K
- Wheel Excavators: MD6200, MD6310, MD6250, M315
- Dozers: D6T LGP, D8, D8R, D6T, D5K LGP, D7H, D6R, D7R, D6R III, D5H, D9R, D8T, D6K2, D7E, D5K2 XL, D5K XL, D4, D1, D10T2, D6N, D8N, D9T, D7R II, D4E, D3K2 LGP, D11, D10T, D10R, D6G2 XL, D6R XL, D6R LGP, D7, D10, D11T, D11R, D10N, D6G2 LGP, D9, D11N, D6R II
- Mini Excavators: 308.5, 305.5E, 306.5, 308, 308E2, 305.5E2, 307, 306, 310, 303.5E, 305E2, 307E2
- Wheel Loaders: 966H, 988K, 924HZ, 938K, 924K, 928G, 924GZ, 950H, 962G, 980, 950L, 962L, 950G, 972H, 972L, 836, 966L, 926M, 928HZ, 834, 966K, R3000H, 992D, R1700K, 966, 966F, 938M, 986H, R2900 XE, 906K, 992C, 988F, RM500B, R2900G, R1700 II, 950, R1700 XE, M314
- Off-Highway Trucks: 798 AC, 773F, 797F, 772G, 796 AC, 777D, 773E, 775G, 793D, 785D, 777E, 735, 730, 725, 785, 740 GC, 745, 789, 793, 740, 777, 793F, 794 AC, 745C, 773, 789D
