Value Collection 225220BR Shoulder Screw 3/4 in 4140 Alloy Steel

Product Description

The VALUE COLLECTION 225220BR is a hex socket shoulder screw machined from 4140 alloy steel for high-strength fastening applications. The shoulder measures 0.75 inches in diameter and 2 inches in length, providing a precise bearing surface for rotating or sliding components such as linkages, cams, and guides. The threaded portion uses a 5/8-11 UNC thread for secure engagement with tapped holes or nuts. The 1-inch head diameter and 0.5-inch head height accept a 3/8-inch hex key drive. This screw meets ASME/ANSI B18.3, ASTM F835, and IFI 124 standards, making it a reliable choice for industrial maintenance, tooling, and equipment fabrication.

This shoulder screw is suited for use in jigs, fixtures, tooling plates, and mechanical assemblies where a precision shoulder is required to guide or retain a component with controlled clearance. It is commonly installed by machinists, millwrights, and maintenance technicians working on industrial machinery, production equipment, and custom fabricated assemblies. The 4140 alloy steel construction offers good tensile strength and wear resistance in demanding service conditions.

Key Features

• Shoulder diameter of 0.75 inches and shoulder length of 2 inches for precision fit in bored holes
• 5/8-11 UNC thread standard for compatibility with standard tapped holes and fasteners
• 4140 alloy steel construction for high tensile strength and wear resistance
• Hex socket drive accepts a 3/8-inch hex key for controlled torque installation in tight spaces
• Meets ASME/ANSI B18.3, ASTM F835, and IFI 124 standards
• 1-inch head diameter and 0.5-inch head height for positive seating against workpiece surfaces

Compatibility

Designed as a standard shoulder screw for use in industrial fixtures, tooling, and mechanical assemblies requiring a 0.75-inch shoulder diameter and 5/8-11 UNC threaded engagement.

Installation Notes

Install using a 3/8-inch hex key; ensure the tapped hole or mating thread is clean and free of debris before threading. Power down and de-energize any equipment before servicing fasteners in mechanical assemblies. Do not exceed the rated capacity of the mating thread material, particularly when installing into softer substrates. Refer to applicable ASME or ASTM guidelines for torque recommendations based on joint requirements.