Value Collection 88547633 Set Screw 5/16-18 X 3/4 in Grade 8

Product Description

The VALUE COLLECTION 88547633 is a Grade 8 alloy steel cup point set screw with a 5/16-18 UNC thread and an overall length of 3/4 inches. Driven by a 5/32-inch hex key, the cup point tip bites into the mating shaft to resist rotation and axial movement without requiring a through-hole. Grade 8 alloy steel delivers the high hardness and tensile strength needed for demanding mechanical assemblies where a standard zinc or low-grade fastener would strip or back out under load. This item is sold in a package of 25 pieces.

Cup point set screws are widely used in industrial and mechanical maintenance applications including motor shaft collars, pulleys, gears, sprockets, and couplings. They are a standard fastener in HVAC blower wheel assemblies, pump shaft retention, and general equipment repair. Licensed technicians and maintenance professionals use them wherever a flush, headless fastener is required to secure a rotating or sliding component to a shaft.

Key Features

• Cup point tip provides positive shaft engagement and high holding torque without marring the shaft excessively
• Grade 8 alloy steel construction for high tensile and proof load strength
• 5/16-18 UNC thread for broad compatibility with standard inch-series collars and hubs
• 5/32-inch hex drive accepts a standard Allen wrench or hex bit driver
• Overall length of 3/4 inches suits medium-depth engagement requirements
• Package of 25 pieces supports job-site stock and repetitive assembly tasks

Compatibility

Designed as a standard inch-series set screw for use in any collar, hub, gear, or coupling tapped to accept a 5/16-18 UNC thread with a cup point fastener.

Installation Notes

De-energize and lock out all rotating equipment before removing or installing set screws. A correctly sized 5/32-inch hex key or L-wrench should be used to avoid rounding the drive socket. Do not reuse a set screw that shows deformation at the cup point or thread damage, as holding strength will be compromised. Refer to the equipment manufacturer's documentation for any required seating sequence or thread-locking compound specifications.