Value Collection NT-51618-750-SS Set Screw 5/16-18x3/4in Ss

Product Description

The VALUE COLLECTION NT-51618-750-SS is a 5/16-18 x 3/4 inch cup-style set screw with a soft nylon tip point, manufactured from Grade 18-8 stainless steel. The hex drive accepts a standard hex key for installation and removal. The nylon tip protects shaft surfaces and finished components from damage during tightening, making this fastener a reliable choice where marring or galling must be avoided. The UNC/UNF thread standard ensures broad compatibility with standard inch-series tapped holes. This screw is suited for mechanical assemblies, shaft collars, bearing mounts, and similar light-duty clamping applications across trade, industrial, and OEM settings.

This set screw is applicable in HVAC equipment assemblies, motor shaft retention, blower wheel hubs, and general mechanical fastening wherever a non-marring hold point is required. The stainless steel construction provides corrosion resistance in humid or wet environments, including plumbing system components, pool equipment enclosures, and outdoor mechanical assemblies. Maintenance technicians, millwrights, and HVAC mechanics commonly use this type of fastener when servicing rotating assemblies or securing set-screw style collars and couplings.

Key Features

• Nylon soft tip protects shaft surfaces from scoring and galling during tightening
• Grade 18-8 stainless steel construction resists corrosion in wet or humid service environments
• 5/16-18 UNC/UNF thread for compatibility with standard inch-series tapped holes
• 3/4 inch thread length provides adequate engagement depth for shaft-collar and hub applications
• Hex drive accepts a standard hex key — no special tooling required

Compatibility

Designed as a standard inch-series set screw for use in any 5/16-18 tapped hole requiring a soft-tip, non-marring fastener in residential, commercial, or light industrial mechanical assemblies.

Installation Notes

Installation is performed with a calibrated hex key sized to the drive; do not use an oversized key, as it can round the socket. Ensure the mating tapped hole is clean and free of debris before threading. When installing on a rotating shaft, lock out and tag out all power to the equipment per applicable safety procedures before servicing. Do not overtighten — the nylon tip can deform or fracture if excessive torque is applied.