Hex Bolt Grade 5
Bolts And Screws ·44 Fitments
| Machine | Model | Years |
|---|---|---|
| WINCH | 19 | 1965 – 1987 |
| BACKHOE | 26 | 1965 – 1975 |
| BACKHOE | 26B | 1965 – 1975 |
| LOADER | 26B | 1965 – 1975 |
| BACKHOE | 26S | 1965 – 1975 |
| CASE/BELOIT SKID KING WHEEL LOADER | 300 | 1968 – 1969 |
| BACKHOE | 31 | 1960 – 1963 |
| BACKHOE | 310C | 1959 – 1962 |
| CASE CRAWLER TRACTOR | 310E | 1961 – 1990 |
| BACKHOE FOR W7, W9A, W9B, W10 | 32 | 1962 – 1967 |
Enhance your heavy equipment’s durability with the Case Construction Hex Bolt – Grade 5 #280373. Engineered for strength and reliability, this high-quality bolt ensures secure connections, making it essential for maintaining optimal performance in demanding construction environments.
Compatible equipment
This part fits WINCH, BACKHOE, LOADER, CASE/BELOIT SKID KING WHEEL LOADER, CASE CRAWLER TRACTOR, BACKHOE FOR W7, W9A, W9B, W10, CASE WHEEL TRACTOR, BACKHOE FOR W SERIES RIGID LOADERS, BACKHOES FOR CRAWLER MODELS 750, 850, 1150, CASE WHEEL TRACTOR W/LOADER BACKHOE, CASE CONSTRUCTION KING WHEEL TRACTOR, CASE CONSTRUCTION KING LOADER BACKHOE, CASE TERRATRAC CRAWLER TRACTOR, CASE CONSTRUCTION KING TRACTOR W/SHUTTLE TRANSMISSION, CASE CONSTRUCTION KING WHEEL TRACTOR W/HYDROSTATIC TRANSMISSION, CASE CONSTRUCTION KING LOADER BACKHOE - 4WD SUPPLEMENT, CASE CONSTRUCTION KING LOADER BACKHOE - TURBO SUPPLEMENT, CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE CONSTRUCTION KING FORKLIFT, CASE TERRATRAC GASOLINE CRAWLER TRACTOR, CASE TRENCHER, CASE TURBO TRENCHER, MINI CRAWLER EXCAVATOR, CASE BACKHOE, CASE FORKLIFT, CASE UNIT LOADER, CASE WHEEL LOADER including models 19, 26, 26B, 26S, 300, 31, 310C, 310E, 32, 320B, 34, 400, 420B, 420BD, 480B, 480C, 500, 520, 580B, 580C, 580D, 580G, 580SD, 584C, 585C.
Frequently asked questions
What is the part number?
The manufacturer part number is 280373.
Is this a genuine OEM part?
Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.
Will this fit my machine?
See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.
Where does this ship from?
Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.
- Manufacturer part number
- 280373
- Internal SKU
- IC:280373
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Bolts And Screws
- Weight
- 0.57 lb
Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.
30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.
All 44 fitments
| Machine | Model | Years |
|---|---|---|
| WINCH | 19 | 1965 – 1987 |
| BACKHOE | 26 | 1965 – 1975 |
| BACKHOE | 26B | 1965 – 1975 |
| LOADER | 26B | 1965 – 1975 |
| BACKHOE | 26S | 1965 – 1975 |
| CASE/BELOIT SKID KING WHEEL LOADER | 300 | 1968 – 1969 |
| BACKHOE | 31 | 1960 – 1963 |
| BACKHOE | 310C | 1959 – 1962 |
| CASE CRAWLER TRACTOR | 310E | 1961 – 1990 |
| BACKHOE FOR W7, W9A, W9B, W10 | 32 | 1962 – 1967 |
| CASE WHEEL TRACTOR | 320B | 1957 – 1959 |
| BACKHOE FOR W SERIES RIGID LOADERS | 34 | 1961 – 1971 |
| BACKHOES FOR CRAWLER MODELS 750, 850, 1150 | 34 | 1961 – 1971 |
| CASE CRAWLER TRACTOR | 400 | 1957 – 1983 |
| CASE WHEEL TRACTOR | 420B | 1957 – 1958 |
| CASE WHEEL TRACTOR W/LOADER BACKHOE | 420B | 1957 – 1958 |
| CASE WHEEL TRACTOR | 420BD | 1957 – 1959 |
| CASE CONSTRUCTION KING WHEEL TRACTOR | 480B | 1971 – 1978 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 480C | 1976 – 1980 |
| CASE CRAWLER TRACTOR | 500 | 1953 – 1983 |
| CASE TERRATRAC CRAWLER TRACTOR | 520 | 1954 – 1962 |
| CASE CONSTRUCTION KING TRACTOR W/SHUTTLE TRANSMISSION | 580B | 1971 – 1977 |
| CASE CONSTRUCTION KING WHEEL TRACTOR W/HYDROSTATIC TRANSMISSION | 580B | 1971 – 1977 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 580C | 1975 – 1980 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 580D | 1980 – 1984 |
| CASE CONSTRUCTION KING LOADER BACKHOE | 580G | 1978 – 1988 |
| CASE CONSTRUCTION KING LOADER BACKHOE - 4WD SUPPLEMENT | 580G | 1978 – 1988 |
| CASE CONSTRUCTION KING LOADER BACKHOE - TURBO SUPPLEMENT | 580G | 1978 – 1987 |
| CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE | 580SD | 1980 – 1984 |
| CASE CONSTRUCTION KING FORKLIFT | 584C | 1979 – 1988 |
| CASE CONSTRUCTION KING FORKLIFT | 585C | 1979 – 1988 |
| CASE CONSTRUCTION KING FORKLIFT | 586C | 1979 – 1988 |
| CASE TERRATRAC GASOLINE CRAWLER TRACTOR | 600 | 1957 – 1958 |
| CASE TRENCHER | 760 | 2000 – 2004 |
| CASE TURBO TRENCHER | 860 | 1992 – 2002 |
| WINCH | 9 | 1965 – 1987 |
| MINI CRAWLER EXCAVATOR | CX31B | 2004 – 2014 |
| CASE BACKHOE | D100 | 1989 |
| CASE BACKHOE | D100XR | 1987 – 1994 |
| CASE BACKHOE | D130 | 1989 – 2001 |
| CASE FORKLIFT | M3B | 1960 – 1962 |
| CASE UNIT LOADER | W12 | 1959 – 1967 |
| CASE UNIT LOADER | W5 | 1959 – 1962 |
| CASE WHEEL LOADER | W7 | 1962 – 1968 |