Value Collection 225229BR Shoulder Screw 3/4 in 4140 Alloy Steel

Product Description

The VALUE COLLECTION 225229BR is a hex socket shoulder screw machined from 4140 alloy steel, designed for precision-fit pivot and bearing applications in industrial and mechanical assemblies. The shoulder measures 0.750 inches in diameter and 2-3/4 inches in length, providing a smooth, hardened bearing surface for rotating or sliding components. The threaded portion is 5/8-11 UNC, and the 3/8-inch hex socket drive allows controlled torque installation with a standard hex key. This fastener meets ASME/ANSI B18.3, ASTM F835, and IFI 124 standards, making it appropriate for demanding structural and mechanical applications.

Shoulder screws of this type are commonly used in jigs, fixtures, dies, linkage assemblies, and machine components where a precise cylindrical shoulder is required to locate, guide, or pivot a part. The 3/4-inch shoulder diameter suits heavier-duty assemblies that require a robust bearing surface. Machinists, tool-and-die makers, millwrights, and maintenance technicians are the primary installers in both production and maintenance environments.

Key Features

• 4140 alloy steel construction for high tensile strength and wear resistance
• 0.750-inch shoulder diameter with 2-3/4-inch shoulder length for precise component location
• 5/8-11 UNC thread for reliable clamping in standard tapped holes
• 3/8-inch hex socket drive for controlled torque installation
• 1-inch head diameter, 1/2-inch head height for positive seating against mating surfaces
• Meets ASME/ANSI B18.3, ASTM F835, and IFI 124 standards

Compatibility

Designed as a standard shoulder screw for use in any application requiring a 3/4-inch shoulder diameter, 5/8-11 UNC thread, and hex socket drive in conformance with ASME/ANSI B18.3 dimensional standards.

Installation Notes

Install using a 3/8-inch hex key or socket driver; ensure the mating tapped hole conforms to 5/8-11 UNC tolerances before installation. Degrease mating surfaces and inspect the shoulder bore clearance to match the 0.750-inch shoulder diameter. Do not over-torque, as excess torque can damage the hex socket or distort the shoulder fit. Follow applicable facility maintenance procedures and torque guidelines appropriate to the assembly requirements.