Mk Diamond 153942 Keps Nut 5/16-18

Product Description

The MK DIAMOND 153942 is a 5/16-18 Keps nut designed as a replacement fastener for MK Diamond power tools and equipment. A Keps nut — also called a K-lock or washer nut — features an integrated free-spinning external tooth lock washer that bites into the mating surface as the nut is torqued, providing vibration-resistant retention without a separate washer. This fastener is used by technicians and service professionals performing maintenance, repair, or component replacement on MK Diamond equipment.

This nut is used in service and repair applications on MK Diamond power tools and accessories where a 5/16-18 UNC threaded fastener with integrated locking capability is required. It is well-suited for environments where vibration is a factor, such as cutting equipment and rotating machinery, making it a practical choice for field and shop repairs alike.

Key Features

• 5/16-18 UNC thread size for direct OEM replacement
• Integrated external tooth lock washer eliminates need for a separate locking washer
• Free-spinning washer seats flat before torquing for consistent clamping
• Vibration-resistant design suited to power tool and cutting equipment applications
• OEM MK Diamond replacement part for accurate fit

Compatibility

Designed as an OEM replacement fastener for MK Diamond power tools and accessories requiring a 5/16-18 Keps nut.

Installation Notes

Installation is performed by qualified service technicians or experienced equipment operators. Power down and disconnect the equipment from its power source before replacing any fasteners. Use the appropriate wrench or socket for a 5/16-18 nut and ensure threads on the mating bolt or stud are clean and undamaged before installation. Do not overtighten — apply only the fastener manufacturer-specified torque or follow the equipment service manual.

Technical Specifications

• Thread Size: 5/16-18 UNC
• Nut Type: Keps (K-lock) with integrated external tooth lock washer

Standard Information

• Brand: MK DIAMOND
• Manufacturer Part Number: 153942