Value Collection A996779 Shoulder Screw M5x0.80 12.9 Alloy Steel

Product Description

The VALUE COLLECTION A996779 is a metric shoulder screw machined from 12.9 grade alloy steel, designed for precision fastening applications where an accurately controlled shoulder diameter is required. The shoulder measures 6 mm in diameter and 30 mm in length, providing a hardened bearing surface or pivot point for mating components. Drive engagement is via a hex socket head, making it compatible with standard Allen key sets and hex bit drivers. The thread is M5x0.80 metric standard, and the screw ships uncoated, meaning no plating or surface treatment has been added. Sold in packages of 10, with a minimum order of 1 package.

This shoulder screw is suited for mechanical assemblies, tooling fixtures, jigs, and precision machinery where a close-tolerance pin-like shank is needed alongside a threaded engagement. The 12.9 material grade indicates a high-strength alloy steel fastener capable of handling demanding clamp loads and dynamic loading scenarios. It is appropriate for industrial maintenance, machine shop, and OEM assembly applications. Machinists, millwrights, and mechanical assemblers are the typical installers of this fastener type.

Key Features

• 6 mm shoulder diameter with 30 mm shoulder length for precise fit and pivot control
• 12.9 grade alloy steel construction for high tensile and shear strength
• M5x0.80 metric thread for positive threaded engagement
• Hex socket drive for use with standard Allen keys and hex bit drivers
• Uncoated finish — no plating added, suitable for applications where bare steel is preferred
• Conforms to ASME/ANSI B18.3.3.M, BS 4168, and ISO 7379 standards
• Sold in a package of 10 pieces

Compatibility

Designed as a standard metric shoulder screw for use in mechanical assemblies, tooling fixtures, and precision machinery requiring a 6 mm shoulder diameter and M5x0.80 thread engagement.

Installation Notes

Installation is typically performed by machinists or mechanical assemblers using a hex key or Allen driver sized for the socket head. Ensure mating bores are machined to the appropriate tolerance for the 6 mm shoulder diameter before installation. Follow applicable fastener standards and engineering drawings for proper seating depth and clamp load. No torque values specific to this screw are published in the available product data — consult engineering specifications for the assembly.