Value Collection MP40360 Set Screw 1/4-20 Cup Point Grade 8

Product Description

The VALUE COLLECTION MP40360 is a cup point set screw designed for securing components to shafts, spindles, and similar assemblies. It features a 1/4-20 UNC thread with an overall length of 1/4 inch and a 1/8 inch hex key drive. Manufactured from alloy steel to Grade 8 specifications, this fastener delivers high tensile strength and resistance to loosening under load. The cup point geometry bites into the mating surface to provide a reliable hold without requiring a through-hole. This screw conforms to ASME/ANSI B18.3 and ASTM F912 standards and is sold in a package quantity of 50.

Cup point set screws like the MP40360 are used across mechanical, HVAC, plumbing, and electrical trade applications wherever a headless fastener is needed to lock a collar, pulley, gear, or knob onto a shaft. They are commonly installed in motor shaft collars, blower wheel hubs, valve handles, and similar rotating or sliding components. The Grade 8 alloy steel construction makes this fastener well suited for applications involving vibration or higher clamp loads.

Key Features

• 1/4-20 UNC thread for compatibility with standard inch-series tapped holes
• 1/4 inch overall length — compact profile for shallow-bore applications
• Cup point design bites into shaft surface to resist rotation and axial movement
• Grade 8 alloy steel construction provides high tensile and proof load strength
• 1/8 inch hex key drive for installation with standard Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as a standard 1/4-20 UNC cup point set screw suitable for any tapped hole or threaded insert of the same thread specification requiring a headless fastener.

Installation Notes

Installation requires a 1/8 inch hex key or Allen wrench. De-energize or lock out any equipment before accessing shaft assemblies or rotating components per applicable OSHA lockout/tagout procedures. Do not exceed the torque range appropriate for Grade 8 alloy steel at this thread size as noted in standard fastener engineering references. Inspect the mating shaft surface for burrs or damage before seating the cup point to ensure consistent hold.