Screw 12 Pt Capscrew
| Machine | Model | Years / S/N |
|---|---|---|
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299) | 1150 | 1968 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE CRAWLER TRACTOR | 1150B | 1973 – 1984 |
| CASE CRAWLER TRACTOR (NORTH AMERICA) | 1150C | 1978 – 1984 |
| CASE CRAWLER TRACTOR | 1150D | 1976 – 1986 |
| CASE CRAWLER TRACTOR | 1150E | 1985 – 1994 |
| CASE CRAWLER TRACTOR | 1155D | 1983 – 1986 |
| CASE CRAWLER TRACTOR | 1155E | 1985 – 1994 |
Enhance your heavy equipment’s performance with the Case Construction Screw 12 Pt Capscrew #166-88. Designed for durability and precision, this high-quality capscrew ensures secure fastening, making it an essential component for reliable machinery operation. Perfect for Case equipment maintenance and repairs.
Compatible equipment
This part fits CASE CRAWLER TRACTOR (S/N 7103001 & AFTER), CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER), CASE CRAWLER TRACTOR, CASE CRAWLER TRACTOR (NORTH AMERICA), CASE DIESEL TRACTOR, CASE TRACTION KING TRACTOR, CASE TRACTOR, CASE IH TRACTOR, CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436), CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306), CASE CRAWLER TRACTOR (S/N 3060306 & AFTER), CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169), CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER), CASE CRAWLER TRACTOR (AFTER S/N 7070351), CASE CRAWLER TRACTOR (EUROPE), CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA), CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA), SERIES - CASE COMFORT KING WESTERN SPECIAL TRACTOR (S/N 8258382 & AFTER) including models 1000D, 1150, 1150B, 1150C, 1150D, 1150E, 1155D, 1155E, 1450, 1450B, 1455B, 2090, 2094, 2290, 2294, 2870, 3294, 4490, 4494, 450, 450B, 455B, 4690, 4694, 475.
Frequently asked questions
What is the part number?
The manufacturer part number is 166-88.
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.
WARNING:For California residents — Cancer and Reproductive Harm. www.P65Warnings.ca.gov
- Manufacturer part number
- 166-88
- Internal SKU
- IC:166-88
- Brand
- Case Construction
- Condition
- OEM, new
- Category
- Bolts And Screws
- Weight
- 0.2 lb
Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.
Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.
30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.
All 37 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| CASE CRAWLER TRACTOR (S/N 7103001 & AFTER) | 1000D | 1960 – 1966 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000) | 1150 | 1965 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299) | 1150 | 1968 – 1974 |
| CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER) | 1150 | 1969 – 1974 |
| CASE CRAWLER TRACTOR | 1150B | 1973 – 1984 |
| CASE CRAWLER TRACTOR (NORTH AMERICA) | 1150C | 1978 – 1984 |
| CASE CRAWLER TRACTOR | 1150D | 1976 – 1986 |
| CASE CRAWLER TRACTOR | 1150E | 1985 – 1994 |
| CASE CRAWLER TRACTOR | 1155D | 1983 – 1986 |
| CASE CRAWLER TRACTOR | 1155E | 1985 – 1994 |
| CASE CRAWLER TRACTOR | 1450 | 1973 – 1980 |
| CASE CRAWLER TRACTOR | 1450B | 1980 – 1987 |
| CASE CRAWLER TRACTOR | 1455B | 1980 – 1987 |
| CASE DIESEL TRACTOR | 2090 | 1978 – 1983 |
| CASE DIESEL TRACTOR | 2094 | 1983 – 1984 |
| CASE DIESEL TRACTOR | 2290 | 1978 – 1983 |
| CASE DIESEL TRACTOR | 2294 | 1985 – 1987 |
| CASE TRACTION KING TRACTOR | 2870 | 1976 – 1979 |
| CASE DIESEL TRACTOR | 3294 | 1983 – 1985 |
| CASE TRACTOR | 4490 | 1979 – 1983 |
| CASE IH TRACTOR | 4494 | 1985 – 1987 |
| CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436) | 450 | 1965 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306) | 450 | 1968 – 1980 |
| CASE CRAWLER TRACTOR (S/N 3060306 & AFTER) | 450 | 1975 – 1980 |
| CASE CRAWLER TRACTOR | 450B | 1978 – 1983 |
| CASE CRAWLER TRACTOR | 455B | 1983 |
| CASE TRACTOR | 4690 | 1979 – 1983 |
| CASE IH TRACTOR | 4694 | 1985 – 1986 |
| CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169) | 475 | 1972 – 1983 |
| CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER) | 475 | 1972 – 1983 |
| CASE TRACTOR | 4890 | 1979 – 1983 |
| CASE IH TRACTOR | 4894 | 1985 – 1987 |
| CASE CRAWLER TRACTOR (AFTER S/N 7070351) | 750 | 1963 – 1967 |
| CASE CRAWLER TRACTOR (EUROPE) | 850 | 1967 – 1977 |
| CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA) | 850 | 1969 – 1977 |
| CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA) | 850 | 1967 – 1977 |
| SERIES - CASE COMFORT KING WESTERN SPECIAL TRACTOR (S/N 8258382 & AFTER) | 930 | 1967 – 1969 |