Value Collection A996792 Shoulder Screw M8x1.25 12.9 Alloy Steel

Product Description

The VALUE COLLECTION A996792 is a metric shoulder screw machined from 12.9 grade alloy steel, designed for precision fastening applications requiring a controlled-diameter shank. The shoulder measures 10 mm in diameter and 20 mm in length, providing an accurate bearing surface for rotating or sliding components such as linkages, pivots, and guide assemblies. Drive engagement is via a hex socket head, with a head diameter ranging from 15.73 to 16 mm and a head height of 6.78 to 7 mm. The threaded section is M8x1.25 metric thread. The uncoated finish leaves the base alloy steel exposed, making it suitable for applications where plating is unnecessary or where additional surface treatment will be applied downstream.

This shoulder screw fits into mechanical assemblies across industrial, manufacturing, and maintenance applications. It is commonly used as a pivot pin, guide pin, or stripper bolt in jigs, fixtures, dies, and machine tooling. The high-strength 12.9 grade rating makes it appropriate for high-load or high-torque clamping scenarios where a standard socket head cap screw shoulder bolt would be insufficient. Sold in packages of 10 units, it is stocked for maintenance and production environments that require consistent availability of precision fasteners.

Key Features

• 10 mm shoulder diameter with 20 mm shoulder length provides accurate bearing and pivot surface
• 12.9 alloy steel grade delivers high tensile and proof-load strength
• M8x1.25 metric thread for broad compatibility with standard metric tapped holes
• Hex socket drive allows torquing with standard Allen or hex key tooling in confined spaces
• Uncoated finish suitable for post-treatment or direct use in dry or lightly lubricated environments
• Meets ASME/ANSI B18.3.3.M, BS 4168, and ISO 7379 dimensional standards

Compatibility

Designed as a standard metric shoulder screw for use in any application requiring an M8x1.25 threaded hole and a 10 mm shoulder diameter bearing surface, conforming to ASME/ANSI B18.3.3.M, BS 4168, and ISO 7379 specifications.

Installation Notes

Installation is typically performed by machinists, tool and die makers, or maintenance technicians using a hex key or Allen driver sized to the socket head. Ensure the mating tapped hole is clean and meets M8x1.25 thread specifications before installation. Do not exceed the rated clamp load for 12.9 grade fasteners, and verify shoulder fit tolerance in the bore prior to final assembly. Apply thread-locking compound or specified torque procedures per the host equipment manufacturer guidelines.