Value Collection SHSSI0500300-050BX Set Screw 1/2-13x3in Cup

Product Description

The VALUE COLLECTION SHSSI0500300-050BX is a 1/2-13 x 3-inch cup point set screw manufactured from Grade 2 steel with a bright uncoated finish. Set screws are fully threaded fasteners with no head — they seat flush or below a surface to lock collars, pulleys, gears, and similar components onto shafts. The cup point digs into the shaft material to resist rotation and axial movement under load. This box contains 50 pieces, making it suitable for production assembly, maintenance stock, or job-site supply where consistent quantity management matters.

Cup point set screws in 1/2-13 UNC thread are a standard fastener in light industrial and mechanical assembly applications. Typical uses include securing shaft collars on conveyor systems, locking sprockets or sheaves in HVAC and mechanical equipment, and general machine maintenance. The square drive style requires a square key or bit, providing solid torque transfer without cam-out. Grade 2 steel is appropriate for moderate-load, non-critical clamping applications where hardened alloy grades are not required.

Key Features

• Cup point geometry bites into shaft surfaces for reliable anti-rotation hold
• Square drive reduces cam-out risk during installation and removal
• 1/2-13 UNC thread standard ensures broad compatibility with tapped holes in inch-pattern components
• Bright uncoated finish — no coating thickness to account for in tight tolerance assemblies
• Grade 2 steel construction for general-purpose clamping duty
• Box quantity of 50 pieces supports production and maintenance stocking needs

Compatibility

Designed for use in any tapped 1/2-13 UNC hole requiring a headless cup point set screw — common in shaft collars, shaft couplings, pulleys, sprockets, and similar mechanical components across light industrial and trade applications.

Installation Notes

Installation requires a square drive key or bit sized to the screw socket. Ensure the mating tapped hole is clean and free of debris before threading. Apply consistent torque to seat the cup point firmly against the shaft without stripping the drive socket. Fastener replacement and mechanical assembly work on live equipment should always be performed with the machine de-energized and locked out per applicable safety procedures.