Value Collection 533116PR Set Screw M8 X 1.25 X 30 Mm

Product Description

The VALUE COLLECTION 533116PR is an M8 x 1.25 x 30 mm cup point set screw engineered for secure, non-permanent fastening in mechanical assemblies. Manufactured from alloy steel to Grade 14.9 (45H), this fastener delivers high tensile strength and resistance to loosening under vibration and load. The cup point geometry bites into the mating surface to create a positive lock without requiring a through-hole. It is driven with a 4 mm hex key and conforms to DIN 916, the international standard for hexagon socket set screws with cup points. Typical installers include machinists, millwrights, and mechanical assemblers working in production or maintenance environments.

This set screw is suited for shaft-to-hub connections, collar positioning, and adjustment mechanisms in industrial machinery, power transmission equipment, and general mechanical assemblies. The metric M8 x 1.25 thread and 30 mm overall length cover a wide range of standard collar and hub wall thicknesses. DIN 916 compliance makes it an appropriate choice wherever a metric cup point set screw is specified on engineering drawings.

Key Features

• Cup point geometry provides a firm mechanical bite on shaft surfaces for positive retention
• Grade 14.9 (45H) alloy steel construction delivers high clamping force and fatigue resistance
• DIN 916 standard ensures dimensional interchangeability with other compliant metric fasteners
• M8 x 1.25 metric thread with 30 mm overall length suits standard collar and hub applications
• 4 mm hex key drive for precise torque application in confined spaces

Compatibility

Designed as a DIN 916-compliant metric cup point set screw for use in standard M8 x 1.25 threaded bores across industrial and mechanical assembly applications.

Installation Notes

Installation should be performed by qualified machinists or mechanical technicians using a calibrated 4 mm hex key. Clean and inspect the threaded bore before installation to ensure proper thread engagement. De-energize and lock out any machinery before servicing shaft or hub assemblies. Do not substitute this fastener in applications requiring a different point type, thread pitch, or fastener grade without engineering approval.