Description
Overview:
The Special Screw M6 x 23 (LEFT Hand) is a genuine Hitachi/Hikoki fastener designed for selected corded and cordless drills, including the Hikoki DS14DBL and DS14DSL. It features an M6 thread with a 23 mm length (approx. 0.91 in) and a left‐hand thread direction to suit assemblies that require reverse threading for secure retention under load. Built from durable materials for everyday trade and DIY use, it helps maintain correct fit and function of critical drill components. As an OEM part (311959), it offers the correct dimensions and thread form for reliable engagement and long service life. Ideal for servicing, repair, and preventative maintenance, it restores original performance and helps avoid downtime on site or in the workshop.
Key Features:
- Genuine Hitachi/Hikoki part for assured compatibility and quality (OEM 311959)
- M6 thread, 23 mm length (approx. 0.91 in) for the specified assemblies
- Left-hand (reverse) thread for applications where standard right-hand screws may loosen
- Precision-machined threads for secure hold and consistent torque
- Durable construction suitable for regular professional and DIY use
- Helps maintain tool reliability and extends service life
- Straightforward replacement for worn, damaged, or missing screws
- Compatible with a wide range of Hitachi/Hikoki drills listed below
Typical Applications:
Used to secure internal drill components that are designed for reverse-threaded fasteners, helping prevent self‐loosening during operation. Suitable for maintenance, repair, and refurbishment of compatible Hitachi/Hikoki drills in workshops, on construction sites, and for mobile tool servicing. Ideal when restoring original fit after disassembly or replacing a lost or stripped screw.
Also known as:
Left-hand screw, reverse-thread screw, LH thread machine screw, M6 x 23 LH fastener, Hikoki special screw, Hitachi reverse-thread fixing.
Fits Models:
D10VF, D10VG, D13VF, DS12DVB2, DS14DBL, DS14DFL, DS14DSAL, DS14DSFL, DS14DSL, DS14DVC, DS18DBL, DS18DFL, DS18DGL, DS18DSAL, DS18DSFL, DS18DVF3, DV18DGL, FDS18DGL
Alternate Part Numbers:
311959, HKK311959
Product Specifications
| L&S Part No. | HKK311959 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hitachi/Hikoki |
| OEM No. | 311959 |
| Unit of Sale | 1 |
| Applications | D10VF, D10VG, D13VF, DS12DVB2, DS14DBL, DS14DFL, DS14DSAL, DS14DSFL, DS14DSL, DS14DVC, DS18DBL, DS18DFL, DS18DGL, DS18DSAL, DS18DSFL, DS18DVF3, DV18DGL, FDS18DGL |
| Machine Type | Drills |
| Fits Brands | Hikoki |
| Fits Models | D10VF | D13VF | DS12DVB2 | DS14DFL | DS14DSAL | DS14DSL | DS18DFL | DS18DSAL | DS18DVF3 | DV18DGL |
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