Value Collection 221010PR Shoulder Screw 1/4 in Alloy Steel

Product Description

The VALUE COLLECTION 221010PR is a hex socket shoulder screw machined from Grade 8 alloy steel. The shoulder measures 0.25 inches in diameter and 0.75 inches in length, providing a precise bearing surface for pins, rollers, pivots, and linkage assemblies. The threaded portion is cut to a 10-24 UNC thread standard. Drive engagement is through a 1/8-inch hex socket. The head stands 0.1875 inches tall with a 0.375-inch diameter. Left uncoated, the fastener ships ready for installation or additional finishing. Machinists, maintenance technicians, and assembly professionals use shoulder screws as dowel-style fasteners where both rotational clearance and positive thread retention are needed.

This shoulder screw suits general industrial, mechanical, and machine-assembly applications where a ground shoulder is required to locate or guide a mating component. It is appropriate for use in jigs, fixtures, die sets, cam followers, and similar mechanical assemblies found in production and maintenance environments. The 10-24 UNC thread is compatible with standard tapped holes or hex nuts of the same thread designation. Minimum order quantity is 25 pieces per order.

Key Features

• Grade 8 alloy steel construction for high tensile strength in fastener-critical applications
• 0.25-inch shoulder diameter and 0.75-inch shoulder length provide a precision bearing surface
• 10-24 UNC thread for engagement with standard inch-series tapped holes
• 1/8-inch hex socket drive for reliable torque application with a standard hex key or Allen driver
• Uncoated finish suitable for use as-is or for post-installation plating and coating
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as an OEM-style replacement or standard-service shoulder screw for mechanical assemblies requiring a 1/4-inch shoulder diameter, 3/4-inch shoulder length, and 10-24 UNC thread engagement.

Installation Notes

Installation requires a 1/8-inch hex key or matching Allen driver. Ensure the mating tapped hole is clean, properly sized to 10-24 UNC, and free of debris before threading. Always de-energize or lock out any machinery before servicing fasteners in live assemblies. Do not exceed the torque capacity appropriate for a Grade 8 alloy steel 10-24 fastener as defined in your applicable engineering or maintenance documentation.