Value Collection 221016PR Shoulder Screw 1/4in X 1-1/4in 10-24

Product Description

The VALUE COLLECTION 221016PR is a Grade 8 alloy steel shoulder screw designed for precision fastening applications where a hardened, close-tolerance shoulder is required. The screw features a 0.250-inch shoulder diameter and a 1-1/4 inch shoulder length, driven by a 1/8-inch hex socket drive. It carries an uncoated finish and meets ANSI B18.3 and ASTM A574 standards, making it appropriate for structural and mechanical assemblies that demand verified dimensional and strength compliance. Machinists, millwrights, and industrial maintenance technicians are the typical installers.

This shoulder screw is suited for use as a pivot point, guide pin, or spacer in jigs, fixtures, linkages, and mechanical assemblies across manufacturing and industrial maintenance environments. The 10-24 UNC thread engages tapped holes in steel, aluminum, and other engineered materials. Its Grade 8 alloy steel construction handles shear and bearing loads common in rotating or sliding component applications. No specific compatible model families are listed in the product data for this SKU.

Key Features

• Grade 8 alloy steel construction for high shear and tensile strength
• 0.250-inch shoulder diameter with 1-1/4 inch shoulder length for close-tolerance fits
• 1/8-inch hex socket drive for precise torque application in tight spaces
• 10-24 UNC thread standard for broad compatibility with tapped assemblies
• Uncoated finish — suitable for assemblies where plating or coating would affect dimensional tolerances
• Meets ANSI B18.3, ASME/ANSI B18.3, and ASTM A574 standards

Compatibility

Designed as an OEM-style replacement or standard-service fastener for mechanical assemblies requiring a 1/4-inch diameter, 1-1/4-inch shoulder length, 10-24 UNC shoulder screw in Grade 8 alloy steel.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 1/8-inch hex key or socket driver. De-energize and lock out all mechanical and electrical systems before servicing any assembly containing this fastener. Do not exceed the rated thread engagement for the base material, and verify that the tapped hole thread class matches the 10-24 UNC specification before installation. Follow applicable ANSI B18.3 guidelines for proper seating and torque procedures.