Description
Overview:
This Special Screw M6 (LEFT Hand) is a genuine Hikoki/Hitachi fastener for securing rotating assemblies in compatible drill drivers and hammer drills, including the DS18DSL and DV18DSL. It uses an M6 left-hand thread to resist loosening under normal drill rotation. Made from durable steel for strength and service life, it is sized for a precise fit: overall length 23.5 mm (0.93 inches) with a threaded length of 12 mm (0.47 inches). As an OEM-grade component, it restores correct fastening torque and alignment, helping maintain smooth operation and reliability after routine servicing or repairs. Suitable for professional users and DIY maintenance alike, this genuine part supports consistent performance across a wide range of Hikoki cordless and corded tools.
Key Features:
- Genuine Hikoki/Hitachi part for correct fit and dependable performance
- M6 left-hand thread helps prevent loosening during normal drill rotation
- Dimensions: 23.5 mm (0.93 inches) overall length; 12 mm (0.47 inches) threaded length
- Steel construction for strength and durability in demanding use
- Designed for secure seating to protect spindles and chucks from play
- Straightforward replacement with standard hand tools
- Supports reliable chuck retention on compatible drill drivers and hammer drills
- Suitable for workshop, site, and van-based maintenance routines
- Consistent with Hikoki specifications for torque and thread engagement
Typical Applications:
Used to secure threaded components on Hikoki drill drivers and hammer drills, commonly the chuck-to-spindle interface on left-hand configurations. Ideal for replacing missing, worn, or damaged screws during routine servicing, after chuck changes, or when resolving vibration-related loosening. Helps restore safe, accurate drilling and hammer drilling performance on compatible tools.
Also known as:
Left-hand M6 machine screw for Hikoki drills, reverse-thread M6 screw, LH chuck retaining screw, M6 LH fixing screw, anti-loosening M6 screw for drill drivers, Hikoki LH spindle screw.
Fits Models:
DH 36DPC, DH 36DPD, DH18DBML, DH18DBQL, DH36DBML, DH36DBQL, DH36DPC, DH36DPD, DS 14DBL, DS 14DL2, DS 14DSL, DS 18DBL, DS 18DL2, DS 18DSL, DS14DBEL, DS14DBL, DS14DL2, DS14DSDL, DS14DSL, DS18DBEL, DS18DBL, DS18DL2, DS18DSDL, DS18DSL, DV 14DBL, DV 18DBL, DV 18DL2, DV 18DSL, DV14DBEL, DV14DBL, DV14DSDL, DV18DBEL, DV18DBL, DV18DL2, DV18DSDL, DV18DSL
Alternate Part Numbers:
334721, 330094
Product Specifications
| L&S Part No. | HKK334721 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hikoki |
| OEM No. | 334721 |
| Unit of Sale | 1 |
| Machine Type | Drills |
| Fits Brands | Hikoki |
| Key Features | - M6 left-hand thread prevents loosening during drill rotation - 23.5 mm overall length; 12 mm threaded length - Compatible with Hikoki models including DS18DSL, DV18DSL - Steel construction ensures strength and durability - Genuine Hikoki part for correct fit and performance |


