Description
Hardened washers (for example, part number 3E-4352) are recommended in critical joints to provide a controlled assembly surface and reduce the contact stress produced by the fastener to a level the supporting material can withstand.
Cat fastener parts are designed for specific applications based on size, strength, clamping force and past performance. This information is not available to other manufacturers. 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 knows your equipment like we do.
Features
- Hardened steel
- Coating: Zinc Phosphate and Oil
- Inside Diameter: 8.8 mm (0.35 in)
- Outside Diameter: 20.5 mm (0.81 in)
- Thickness: 2.5 mm (0.09 in)
- For use with M8 or 5/16 inch bolts
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
| Gasket Type | Flat Washer |
|---|---|
| Material | HARDENED STEEL |
| Coating | Zinc phosphate + oil provides corrosion protection up to the point of assembly (painting is recommended for exterior applications). Salt spray resistance: 72 hours with no red rust. Coating color – dark gray to black. |
| Inside Diameter | 8.8 mm (0.346 in) |
| Outside Diameter | 20.5 mm (0.807 in) |
| Thickness | 2.5 mm (0.098 in) |
| Fits Bolt Size | M8 mm (5/16 in) |
Compatible Equipment
- Generator Sets: 3512B, 3516C, C9, C4.4, G3516, G3516C, 3512E, 3406C, 3406B, C7.1
- Track Loaders: 994K, 982, 972, 992, 834H, 990K, 824C, 973K, 816F, 826H, 826K, 824G, 826G, 993, 995
- Cold Planers: PL72, TH360B, PL83, PL87, PM622, PM620, PM-200
- Compactors: CB1.8, CB1.7, CP56B, CB-44B, CW-34, CW-16, CS74B, C9.3B, CS78B, CP54B, CB-64B, CS12, CB16, CS54B, CS-583D, CS-533C, 816, 815, 814, C13B, CS68B, CS56B, CS11, CB-66B, CS79B, 834K, 825K, 824K, C-9, C-15, CB10, CB13, CB15, CS-54B, CS64B
- Engines: C7, C13, C32, C15, C11, C27, C18, C12, C175-16
- Excavators: 3126, 3456, 349D2 L, 374F, 349D2, 349D, 320D, 329D, 336D2, 336D, 390F L, 349F L, 374, 330D L, 305E2 CR, 349E L, 3516B, 3508B, 345B, 621H, 345C, 3512C, 349D L, 395, 3516E, 352, 350, 355, 349E, 385B, 349E L VG, 345D L, 390F, 365B, 416E, 340D L, 352F, M325D L MH, 320D3, 336, 345 GC, 416F2, 349, 320D3 GC, 340, 6060, 6030, 345C L, 340D2 L, 320D FM, 374F L, 312 GC, 312 GX, 365B L, 350MHPU, 6040, 336F L XE, 325C, 336F, 325D L, 324D L, 336E, 336D2 XE, 336E L, 329D L, 301.8, 336F L, 336F LN, 325C L, 328D LCR, 336D L, 330C, 336D2 L, 324D, 336E LH, 330D, 330C L, 330 L, 325B L, 336E LN, 325D, 320B, 326D L, 301.6, 336E H, 320D L, 330B, 336D2 GC, 637E, 637G, 637K, 345D, 3101, 621K, 621G
- Asphalt Pavers: AD45, AD30, AD63
- Skid Steer Loaders: 249D3, 239D3, 232D3, 226D3, 272D3 XE, 299D3 XE, 272D3, 236D3, 3126B, 289D3, 262D3, 246D3, 242D3, 236D, 259D3, 246D, 262C, 232D, 262D, 246C, 24, 279C
- Motor Graders: 14, 16, 18, 140 GC, 349 GC, 120, 140G, 120H, 140H, 16M, 14M, 160K, 12H, 12K, 140K, 16M3, 16H, 3606
- Wheel Excavators: M320, M315, MD6310, MD6250, MD6200
- Dozers: D11, D6R II, D9N, D4G, D7R II, D7E, D11T, D11R, D10T, D10T2, D6N, D5N, D7G, D6T LGP, D6R III, D6R, D8T, D6M, D8R, D6T, D7H, D7G2, D6R XL, D7R, D5M, D9R, D8N, D9T, D8L, D6G2 LGP, D3G, D9L, D5G, D10, D10R, D6G2 XL, D7, D9, D8, D11N, D10N, D6R LGP, D1
- Compact Track Loaders: 299D3, 279D3
- Mini Excavators: 301.5, 305E2, 301.7CR, 302CR, 305.5E2
- Wheel Loaders: R3000H, 986H, 992C, R1700G, R1300G, RM500B, 950H, 980, 836, 966, R2900G, 834, 950 GC, 988G, R1700K, 988H, R1600H, RM400, 972L, 966L, 926M, 910, 950, R2900 XE, 980H, 980L, 950G, 972G, 962G, 972H, 966K, 988K, 938M, 966H, 906K, 950L, 962L, 966F, 928G, 980G, 992D, R1700 II
- Off-Highway Trucks: 793F, 785, 777E, 777, 796 AC, 794 AC, 785D, 789D, 725, 730, 735, 798 AC, 797F, 793, 789, 773E, 773F, 772G, 773D, 740B, 770G, 740, 745C, 725C2, 777D, 740 GC, 793D, 745
