Value Collection SS6X08025-100BX Set Screw M8 X 1.25

Product Description

The VALUE COLLECTION SS6X08025-100BX is an M8 x 1.25 x 25 mm cup point set screw manufactured from Grade 18-8 austenitic stainless steel to DIN 916 standards. Set screws of this type are headless fasteners used to secure a component — such as a collar, gear, pulley, or sprocket — against a shaft by bearing directly into the shaft surface via the cup point tip. The hex socket drive accepts a 4 mm hex key for installation and removal. Grade 18-8 stainless steel provides solid corrosion resistance for applications exposed to moisture or mild chemicals. Machinists, maintenance technicians, and industrial mechanics commonly use this fastener in assembly and repair work.

This set screw is suited for light to medium-duty shaft-locking applications in mechanical assemblies, HVAC equipment, pump drives, conveyor systems, and general industrial machinery. The metric M8 x 1.25 thread pitch and 25 mm overall length make it a common specification in equipment manufactured to metric standards. The cup point geometry creates a small indentation in the mating shaft, providing positive retention and resistance to rotational slippage. It is appropriate for both original assembly and field service replacement applications.

Key Features

• M8 x 1.25 metric thread, 25 mm overall length per DIN 916 standard
• Cup point tip indents shaft surface for positive rotational and axial retention
• Grade 18-8 austenitic stainless steel construction for corrosion resistance
• 4 mm hex socket drive — installs with a standard hex key or Allen wrench
• Headless design sits flush or below surface for clearance-critical assemblies

Compatibility

Designed as a DIN 916 metric cup point set screw suitable for any mechanical assembly requiring an M8 x 1.25 threaded headless fastener with a 25 mm overall length.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a 4 mm hex key torqued by hand to the equipment manufacturer's specification. Ensure the mating shaft and threaded bore are clean and free of debris before installation. Do not over-torque, as stainless steel fasteners are susceptible to galling — applying an anti-galling lubricant to the threads before installation is a common best practice. Confirm the shaft material is compatible with the cup point impression before final assembly.