Value Collection 831058PR M5 Cone Point Set Screw Alloy Steel

Product Description

The VALUE COLLECTION 831058PR is an M5 x 0.80 x 25 mm cone point set screw manufactured from Grade 14.9 (45H) alloy steel with a black oxide finish. Set screws of this type are fully threaded, headless fasteners used to lock a component — such as a collar, gear, or pulley — onto a shaft by applying direct point pressure. The cone point geometry concentrates clamping force into the shaft surface for a secure, semi-permanent hold. Drive is via a 2.5 mm hex key. This fastener conforms to DIN 914 and ISO 4027 standards and is suited for industrial, mechanical, and MRO applications where metric fasteners are specified.

This set screw is used in assemblies where rotational or axial movement of a mounted component must be prevented. Typical applications include machine tools, conveyor systems, motor shaft collars, and general mechanical assemblies requiring metric fasteners. The cone point is appropriate for softer shaft materials where a permanent or semi-permanent indent is acceptable. Grade 14.9 (45H) alloy steel provides high tensile strength for demanding clamping loads. The black oxide finish offers mild corrosion resistance and reduces galling during installation.

Key Features

• Cone point geometry for high-holding force and positive shaft engagement
• Grade 14.9 (45H) alloy steel construction for high tensile strength
• Black oxide finish for mild corrosion resistance and reduced galling
• 2.5 mm hex key drive for precise torque application in tight spaces
• Conforms to DIN 914 and ISO 4027 fastener standards
• Metric thread M5 x 0.80 pitch for compatibility with standard metric assemblies

Compatibility

Designed as a standard metric set screw conforming to DIN 914 and ISO 4027, suitable for use in any assembly specifying an M5 x 0.80 x 25 mm cone point headless set screw.

Installation Notes

Installation is performed with a 2.5 mm hex key; ensure the key is fully seated before applying torque to avoid rounding the drive socket. Power down or de-energize any machinery before installing or removing set screws on rotating shafts. Do not reuse set screws that show thread damage or deformation at the cone point. Follow applicable mechanical assembly standards and equipment manufacturer torque guidance for M5 fasteners at this grade.