J.w. Winco 913.3-M12-20-KU Set Screw M12 Soft Tip Steel

Product Description

The J.W. WINCO 913.3-M12-20-KU is a metric hex-drive set screw with a soft nylon tip, designed to secure components without damaging shaft surfaces. Manufactured from Grade 5.8 steel with a black oxide finish, this fastener offers moderate corrosion resistance and solid holding strength for general industrial use. The M12 x 1.75 thread and 20 mm length make it suitable for medium-load clamping applications where a flush or recessed fastener is required. A 6 mm hex key drives the screw. Machinists, millwrights, and maintenance technicians install these screws in everyday production and equipment-assembly environments.

This set screw is used in applications where a threaded fastener must lock a shaft, collar, pulley, sprocket, or hub in position without scoring the mating surface. The nylon tip distributes clamping load and protects polished or finished shafts. Typical installations include shaft collars, shaft couplings, set-screw hubs, and adjustable mechanical stops on production machinery, conveyors, and similar industrial equipment. The metric M12 x 1.75 thread fits standard metric-tapped components across a wide range of industrial machinery platforms.

Key Features

• Nylon soft tip protects shaft surfaces from scoring during clamping
• Grade 5.8 steel construction provides reliable holding strength for general industrial loads
• Black oxide finish adds surface protection and reduces light reflection
• M12 x 1.75 metric thread fits standard metric-tapped bores and collars
• 6 mm hex key drive allows installation in confined spaces
• 20 mm thread engagement length suits medium-depth tapped holes

Compatibility

Designed as a standard metric set screw for use in any M12 x 1.75 tapped bore requiring a soft-tip, hex-drive fastener.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 6 mm hex key or Allen driver. Ensure the mating bore is clean and threads are free of debris before installation. Torque to the equipment manufacturer's specification for Grade 5.8 fasteners at this thread size. Wear appropriate PPE and de-energize or lock out any machinery before servicing components on rotating shafts.