Value Collection 121193PR Set Screw 1/2-13 X 5/8 in Cone Point

Product Description

The VALUE COLLECTION 121193PR is a cone point set screw designed for secure, positive engagement in shaft and hub locking applications. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile strength and resistance to loosening under vibration and load. The cone point geometry bites into the mating surface for a firm, non-slip hold. It accepts a 1/4-inch hex key for installation and complies with ASME/ANSI B18.3 and ASTM F912 standards. Machinists, millwrights, maintenance mechanics, and industrial tradespeople rely on this style of set screw in precision assembly and mechanical positioning work.

This set screw is suited for use in manufacturing, industrial maintenance, and mechanical assembly environments. Common applications include securing pulleys, gears, collars, and couplings to shafts where a permanent or semi-permanent hold is required. The cone point is especially effective on soft shafts where point penetration provides maximum torque resistance. The 1/2-13 UNC thread size and 5/8-inch overall length make it appropriate for medium-duty shaft locking tasks across a range of industrial equipment.

Key Features

• Cone point geometry for positive shaft penetration and high holding strength
• Grade 8 alloy steel construction for elevated tensile and torsional strength
• 1/2-13 UNC thread for compatibility with standard tapped holes
• 5/8-inch overall length measured as total fastener length
• 1/4-inch hex drive accepts standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards

Compatibility

Designed as a standard UNC threaded set screw for use in any 1/2-13 tapped hole requiring a cone point fastener per ASME/ANSI B18.3 specification.

Installation Notes

Installation is performed by machinists or maintenance mechanics using a 1/4-inch hex key or Allen wrench. Ensure the receiving hole is properly tapped to 1/2-13 UNC before installation. De-energize and lock out all equipment before servicing any assembly containing set screws. Avoid overtightening, which can damage the shaft surface or strip the tapped hole.