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The VALUE COLLECTION 131187PR is a 1/2-13 UNC set screw with an oval point, manufactured from Grade 8 alloy steel for high-strength clamping and positioning applications. The oval point style allows the screw to seat against a shaft or surface without gouging, making it well suited for repeated adjustment or removal cycles. Driven with a 1/4-inch hex key, this fastener meets ASME/ANSI B18.3 and ASTM F912 standards. Weighing approximately 0.01 pounds per piece, it is compact and precise. Licensed trades and industrial mechanics rely on this type of fastener for shaft collars, set collar assemblies, and mechanical positioning components.
This set screw is used in mechanical assemblies where a threaded fastener must apply clamping or holding force without a through-hole. Common applications include motor shaft collars, pulleys, couplings, and adjustable mechanical stops across both light industrial and commercial settings. The 1/2-13 UNC thread is a standard coarse-thread specification widely used in North American mechanical and HVAC equipment. Installation is handled by millwrights, maintenance mechanics, HVAC technicians, and general industrial trades.
Designed as a standard 1/2-13 UNC set screw for use in any mechanical assembly calling for an oval-point, Grade 8 alloy steel fastener meeting ASME/ANSI B18.3 and ASTM F912 specifications.
Installation is performed by mechanics or technicians using a 1/4-inch hex key or Allen wrench of appropriate length and torque capacity. De-energize and lock out any rotating equipment before inserting or adjusting set screws in shaft collars or couplings, in accordance with applicable LOTO procedures. Do not overtighten beyond the rated capacity of the thread engagement; inspect the mating bore threads before installation to ensure they are clean and free of debris. Minimum order quantity is 10 pieces.
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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