Value Collection B10674 Shoulder Screw M8x1.25 Alloy Steel

Product Description

The VALUE COLLECTION B10674 is a metric shoulder screw machined from 12.9 grade alloy steel, designed for precision fastening applications where a controlled-diameter shoulder is required. The shoulder measures 10 mm in diameter and 70 mm in length, providing a precise bearing surface or pivot point within an assembly. The M8x1.25 threaded end secures the screw in a tapped hole, while the hex socket drive allows installation with a standard hex key or Allen driver. The uncoated finish is appropriate for applications where coating buildup tolerance is critical or where secondary surface treatment will be applied by the installer.

Shoulder screws of this type are used in industrial machinery, jigs and fixtures, and mechanical assemblies where a hardened, close-tolerance cylindrical shank is needed to guide, pivot, or align moving components. Common applications include die sets, stripper plates, robotic assemblies, and linkage mechanisms. This screw is suitable for both light manufacturing and heavy-duty machine tool environments. Package quantity is 10 pieces per order.

Key Features

• 10 mm shoulder diameter with 70 mm shoulder length for precision fit and alignment
• M8x1.25 metric thread for secure engagement in standard tapped holes
• 12.9 grade alloy steel construction for high tensile strength and hardness
• Hex socket drive compatible with standard Allen keys and hex bit drivers
• Uncoated finish for dimensional consistency and compatibility with secondary coatings
• 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 any application requiring an M8x1.25 threaded shoulder fastener with a 10 mm shoulder diameter, conforming to ASME/ANSI B18.3.3.M, BS 4168, ISO 7370, and ISO 7379.

Installation Notes

Installation is typically performed by machinists, maintenance technicians, or mechanical assemblers using a hex key or hex bit driver sized to the socket. Ensure the receiving tapped hole meets M8x1.25 thread specification and that the clearance bore for the shoulder is sized to the appropriate fit class before installation. Do not overtorque, as 12.9 grade fasteners are high-strength but sensitive to improper installation in undersized or cross-threaded holes. Inspect the shoulder surface for nicks or contamination before seating to preserve the precision fit.