Value Collection 101419PR Set Screw 5/16-24 X 1 in Cup Point

Product Description

The VALUE COLLECTION 101419PR is a cup point set screw designed for mechanical assemblies where a fastener must apply clamping or locking force without a protruding head. Sized at 5/16-24 UNF thread with a 1 inch overall length, this screw is driven with a 5/32 inch hex key and conforms to ASME/ANSI B18.3 and ASTM F912 standards. Manufactured from Grade 8 alloy steel, it delivers high tensile strength suitable for demanding industrial and mechanical applications. The cup point geometry bites into the mating shaft or surface to resist rotation and axial movement, making it a reliable choice for collars, hubs, and shaft assemblies.

This set screw is used in applications where a headless, flush-mount fastener is required to secure a component onto a shaft or within a bore. Typical installations include motor shafts, pulleys, handwheels, couplings, and mechanical collars across residential and commercial equipment. The fine UNF thread pitch allows precise torque control during installation and provides stronger thread engagement than coarse-thread alternatives in the same diameter. Maintenance technicians and millwrights commonly encounter this fastener when servicing rotating equipment or drive assemblies.

Key Features

• 5/16-24 UNF fine thread for precise engagement and strong holding force
• 1 inch overall length for deeper shaft penetration in thick hubs or collars
• Cup point geometry bites into shaft surface to resist rotation and axial shift
• Grade 8 alloy steel construction provides high tensile and proof load strength
• 5/32 inch hex drive conforms to ASME/ANSI B18.3 and ASTM F912 standards
• Headless design allows fully flush or recessed installation in any hub or collar

Compatibility

Designed as a standard replacement or stock fastener for any mechanical assembly requiring a 5/16-24 UNF cup point set screw with a 1 inch overall length and 5/32 inch hex drive.

Installation Notes

Installation should be performed by a qualified mechanic or technician using a calibrated 5/32 inch hex key or Allen wrench. Shut down and de-energize all rotating equipment before servicing any shaft or hub assembly. Ensure the shaft and bore threads are clean and free of debris before threading the screw by hand to avoid cross-threading. Do not exceed the fastener grade capacity by using impact tools or extended-leverage drivers that could strip the hex socket or damage the thread.