Value Collection 537164PR Shoulder Screw M8x1.25 Alloy Steel

Product Description

The VALUE COLLECTION 537164PR is an alloy steel shoulder screw with a metric M8x1.25 thread and hex socket drive, designed for precision fastening applications in mechanical assemblies, jigs, fixtures, and tooling. The screw features a 10 mm shoulder diameter and a 60 mm shoulder length, providing a controlled bearing surface for pivoting components, guided motion, and spaced fastening. Manufactured to material grade 12.9, it delivers high tensile strength suited for demanding industrial and mechanical environments. The uncoated finish is standard for bare-metal applications where coating buildup tolerance is critical. This type of fastener is typically installed by machinists, millwrights, and maintenance technicians.

This shoulder screw is suited for use in mechanical assemblies requiring a precision cylindrical bearing surface. Common applications include pivot points, linkage assemblies, fixture plates, and die sets where a controlled shoulder diameter is required to guide movement or maintain precise spacing. The M8x1.25 metric thread and hex socket drive make it compatible with standard metric tooling setups in industrial and manufacturing environments.

Key Features

• 10 mm shoulder diameter with 60 mm shoulder length for precision bearing surface
• M8x1.25 metric thread for secure fastening with standard metric hardware
• Hex socket drive for torque application with Allen keys or socket drivers
• Material grade 12.9 alloy steel for high tensile and shear strength
• Uncoated finish maintains dimensional tolerances where coatings are not acceptable
• Meets ASME/ANSI B18.3.3.M, BS 4168, ISO 7370, and ISO 7379 standards

Compatibility

Designed as a standard metric shoulder screw for use in mechanical assemblies, fixtures, jigs, and tooling that require a precision M8x1.25 threaded shoulder fastener with a hex socket drive.

Installation Notes

Installation is performed by machinists or maintenance technicians using an appropriately sized hex key or socket driver. Ensure the mating bore diameter matches the 10 mm shoulder diameter for correct fit and function. Clean the threaded bore before installation and avoid cross-threading. Do not use impact drivers on socket head shoulder screws, as this can damage the drive recess or thread engagement.