Value Collection 831122PS M8x1.25 50mm Cone Point Set Screw

Product Description

The VALUE COLLECTION 831122PS is a metric set screw engineered for secure, non-protruding fastening in mechanical assemblies. It features a cone point tip that bites into or seats against a mating surface to resist rotation and axial movement. Manufactured from alloy steel at Grade 14.9 (45H), this screw delivers high tensile and torsional strength for demanding industrial applications. The black oxide finish provides mild corrosion resistance and a consistent surface appearance. Drive is an internal hex (Allen key), requiring a 4 mm hex key for installation. Thread size is M8 x 1.25 and overall length is 50 mm.

This set screw is suited for use in power transmission components such as shaft collars, pulleys, gears, and couplings where a flush or recessed fastener is required. The cone point geometry is particularly effective in applications where the screw must indent a soft shaft or locate precisely against a drilled conical seat. It is commonly used in light to heavy industrial machinery, conveyor systems, and equipment requiring repeatable positioning. Installation is performed by maintenance technicians and mechanical tradespeople working with metric fastener systems.

Key Features

• Cone point tip for positive shaft engagement or seating in a conical recess
• Alloy steel construction rated Grade 14.9 (45H) for high-strength fastening
• Black oxide finish for mild corrosion resistance and reduced galling
• Internal hex drive requires a 4 mm hex key — no external wrench clearance needed
• Conforms to DIN 914 and ISO 4027 dimensional standards
• Metric thread M8 x 1.25, 50 mm overall length for deep engagement

Compatibility

Designed as a standard metric replacement or stock set screw conforming to DIN 914 and ISO 4027 specifications, fitting any M8 x 1.25 threaded bore requiring a cone point headless set screw.

Installation Notes

Installation requires a 4 mm hex key torqued to the fastener manufacturer or equipment OEM specification. De-energize and lock out any rotating equipment before installing or removing set screws in shaft assemblies. Ensure the threaded bore is clean and free of debris before driving the screw. Do not exceed the designed engagement depth, as over-driving a cone point screw can damage the shaft or mating component.