Value Collection 711166PS Shoulder Screw 1 in 4140 Alloy Steel

Product Description

The VALUE COLLECTION 711166PS is a hex socket shoulder screw machined from 4140 alloy steel, designed for precision fastening applications where a smooth, ground shoulder is required to serve as a bearing surface, pivot, or alignment pin. The shoulder measures 1 inch in diameter and 2-1/2 inches in length, with a 3/4-10 UNC threaded end and a hex socket drive requiring a 1/2 inch drive tool. The head diameter is 1-5/16 inches with a head height of 5/8 inch. The uncoated finish makes this screw suitable for applications where additional coatings or platings will be applied by the installer. This fastener is typically installed by machinists, maintenance technicians, or mechanical assemblers.

This shoulder screw is used in industrial machinery, tooling fixtures, jigs, and mechanical assemblies where a precise cylindrical shoulder must bear load, guide movement, or act as a pivot point. The 4140 alloy steel construction provides high tensile strength and wear resistance suited to demanding mechanical environments. It is appropriate for both light and heavy manufacturing settings, as well as maintenance and repair operations where an OEM-spec shoulder screw is required.

Key Features

• 1 inch shoulder diameter with 2-1/2 inch shoulder length for precision fit in bored or reamed holes
• 3/4-10 UNC threaded end for secure engagement in steel or cast components
• 1/2 inch hex socket drive for high-torque installation with a standard Allen or hex key
• 4140 alloy steel construction for high strength and wear resistance
• Uncoated finish for compatibility with post-installation surface treatments
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as a standard shoulder screw conforming to ANSI B18.3 and ASME/ANSI B18.3 dimensional specifications, suitable for use in industrial machinery, tooling, and mechanical assemblies requiring a 1 inch diameter shoulder fastener with a 3/4-10 UNC thread.

Installation Notes

Installation should be performed by a qualified machinist or mechanical technician. Ensure the receiving hole is bored or reamed to the appropriate tolerance for the 1 inch shoulder diameter before installation. Use a 1/2 inch hex key or socket driver to engage the drive and tighten to the torque requirements specified by the assembly design. De-energize or lock out any powered equipment before servicing assemblies containing this fastener.