Value Collection 537146PS Shoulder Screw M8x1.25 Alloy Steel

Product Description

The VALUE COLLECTION 537146PS is an alloy steel shoulder screw designed for precision fastening applications requiring a smooth, hardened cylindrical shoulder as a bearing or pivot surface. The screw features an M8x1.25 metric thread, a 10 mm shoulder diameter, and a 16 mm shoulder length, making it well suited for applications that demand close-tolerance alignment and controlled rotational movement. The hex socket drive allows installation with standard Allen keys or hex drivers in confined spaces. Material grade 12.9 alloy steel provides high tensile strength appropriate for demanding mechanical assemblies. The uncoated finish indicates bare steel — users should account for corrosion exposure in their application environment.

This shoulder screw is used in mechanical, industrial, and automation assemblies where a precise cylindrical bearing surface is required. Typical applications include jigs and fixtures, cam mechanisms, linkages, and pivot points in machine components. The metric thread and ISO 7379 compliance make it appropriate for equipment designed to international metric standards. Installation is performed by maintenance technicians, machinists, and mechanical assemblers working with production or industrial machinery.

Key Features

• 10 mm shoulder diameter with 16 mm shoulder length for precision fit in bored holes
• M8x1.25 metric thread for secure fastening into tapped metric bores
• Grade 12.9 alloy steel construction for high tensile strength
• Hex socket drive for installation in restricted-access locations
• Uncoated finish — bare alloy steel, suitable for dry or protected environments
• Meets ASME/ANSI B18.3.3.M, BS 4168, and ISO 7379 standards

Compatibility

Designed as a standard metric shoulder screw replacement or new-installation fastener for mechanical assemblies requiring an ISO 7379 compliant M8x1.25 shoulder screw with a 10 mm shoulder diameter.

Installation Notes

Installation is performed by machinists or mechanical technicians using a hex key or hex socket driver sized to the head socket. De-energize and lock out all equipment before fastener installation or replacement. The receiving bore should be sized to match the 10 mm shoulder diameter for proper fit and alignment. Apply thread-locking compound or torque specifications per your equipment OEM documentation, as no application-specific values are supplied with this fastener.