Screw Set
| Machine | Model | Years / S/N |
|---|---|---|
| Engine | 150A | — |
| Engine | 170A | — |
| Engine | RP135 | — |
| Engine | RP110 | — |
| Engine | 120A | — |
| Engine | RP165 | — |
| Engine | 100A | — |
| Engine | PX240 | — |
| Engine | NH RP135 | — |
| Engine | RPZ145 | — |
OEM Screw Set Hex Soc 5/16"-18 X 5/16" Screw - Set Socket Hd. 5/16-18 Nc X 5/16 #178 - OEM Hardware Repair Part for Case Construction Equipment Service This replacement part belongs in service work aimed at resolving looseness, missing retention, hardware wear, and attachment instability and repairing replacement of fastening hardware affected by wear, stretch, or breakage on Case equipment. Relevant to maintenance teams managing OEM pin replacement, hardware repair, retainer service, and Case equipment fastening maintenance replacement needs.
More Details
Part Number: 178
Application: Repair application: Hardware replacement component used to repair loose mounting points, missing fasteners, bent pins, or worn retention hardware.
Key Features:
- Designed to replace damaged pins, bolts, washers, or retaining hardware
- Supports repair of looseness, poor retention, and hardware-related service issues
- OEM-style fit for efficient installation in routine maintenance
Fits Case Models: Compatible with various Case construction equipment models - verify fitment before ordering
Replaces: Refer to manufacturer cross-reference if applicable
- Manufacturer part number
- 178-639
- Internal SKU
- IC:178-639
- Brand
- CASE CONSTRUCTION
- Condition
- OEM, new
- Category
- Case Construction
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 55 fitments
| Machine | Model | Years / S/N |
|---|---|---|
| Engine | 150A | — |
| Engine | 170A | — |
| Engine | RP135 | — |
| Engine | RP110 | — |
| Engine | 120A | — |
| Engine | RP165 | — |
| Engine | 100A | — |
| Engine | PX240 | — |
| Engine | NH RP135 | — |
| Engine | RPZ145 | — |
| Engine | RPZ125 | — |
| Engine | NH RP110 | — |
| Engine | P240 | — |
| Engine | NH RPZ145 | — |
| Engine | NH RPZ125 | — |
| Engine | NH RP165 | — |
| Engine | S140 | — |
| Engine | S85 | — |
| Engine | P215 | — |
| Engine | PX215 | — |
| Engine | S240 | — |
| Engine | S215 | — |
| Engine | PX140 | — |
| Engine | PX110 | — |
| Engine | P170 | — |
| Engine | PX170 | — |
| Engine | S110 | — |
| Engine | S170 | — |
| Engine | P110 | — |
| Engine | P70 | — |
| Engine | P140 | — |
| Engine | S70 | — |
| Engine | SE240 | — |
| Engine | SE215 | — |
| Engine | PX190 | — |
| Engine | SE190 | — |
| Engine | SE110 | — |
| Engine | SE170 | — |
| Engine | SE140 | — |
| Engine | 4391TA | — |
| Engine | 6591TA | — |
| Engine | 6591T | — |
| Engine | 6831T | — |
| Engine | 6831TA | — |
| Engine | 6590T | — |
| Engine | 6590 | — |
| Engine | 6830TA | — |
| Engine | 6830T | — |
| Engine | 6590TA | — |
| Engine | 201 | — |
| Engine | A301D | — |
| Engine | A284 | — |
| Backhoe | 320B | — |
| Backhoe | 420BD | — |
| Backhoe | 420B | — |