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The VALUE COLLECTION 2-SC-31C-75 is a cup point set screw designed for positive holding force in mechanical assemblies. Threaded 5/16-18 UNC with an overall length of 3/4 inches, it is driven by a 3/32-inch hex key. Manufactured from Grade 316 stainless steel, this fastener resists corrosion in wet, chemical, and marine environments where lower-grade hardware would fail. The cup point geometry bites into the mating shaft surface to resist axial and rotational movement under load. Machinists, millwrights, and maintenance technicians install this type of screw in collars, pulleys, gears, and similar shaft-mounted components.
This set screw is suited for applications where corrosion resistance is a primary concern, including food-processing equipment, marine hardware, chemical handling systems, and outdoor mechanical assemblies. The 5/16-18 UNC thread is a common size found in industrial and light commercial machinery. At 0.05 pounds per piece, the fastener is sold individually with a minimum order quantity of 100 pieces, making it appropriate for production, maintenance stocking, or service shop inventory.
Designed as a standard inch-series UNC set screw for use in any 5/16-18 tapped hole requiring a cup point, headless fastener in a corrosion-resistant stainless steel grade.
Set screws of this type are installed by machinists, millwrights, or maintenance technicians using a 3/32-inch hex key or Allen driver. Always de-energize and lock out rotating equipment before installing or removing shaft-mounted hardware. Tighten to the appropriate torque specification for the assembly per the equipment manufacturer's documentation. Avoid cross-threading by hand-starting the screw before applying the hex key.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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