Value Collection 703103PR Set Screw 4-40 X 1/8 in Flat Point Ss

Product Description

The VALUE COLLECTION 703103PR is a 4-40 UNC flat point set screw manufactured from Austenitic Grade A2 stainless steel. It measures 1/8 inch in overall length and is driven by a hex key sized at 0.050 inches. The flat point design distributes clamping force evenly across a shaft or seating surface without marring, making it well-suited for precision assemblies where surface damage must be avoided. This fastener meets ASME/ANSI B18.3 and ASTM F880 standards, confirming dimensional and mechanical compliance for critical applications. Machinists, industrial maintenance technicians, and assembly professionals commonly install this type of screw in set screw collars, couplings, pulleys, and small mechanical subassemblies.

This set screw is appropriate for light-duty to medium-duty mechanical assemblies requiring corrosion-resistant fastening. Austenitic Grade A2 stainless steel provides good resistance to oxidation and mild chemical exposure, making it a practical choice for applications in food processing environments, marine-adjacent assemblies, or anywhere carbon steel fasteners would be prone to rust. The 4-40 UNC thread is a fine-pitch imperial thread commonly found in small instrument hardware, electronic enclosures, and precision mechanical components.

Key Features

• Thread size 4-40 UNC for compatibility with standard small-instrument and mechanical hardware
• 1/8 inch overall length for use in thin hubs, collars, and shallow-threaded bosses
• Flat point tip distributes load evenly without damaging shaft surfaces
• Austenitic Grade A2 stainless steel for corrosion resistance in wet or mildly corrosive environments
• Hex drive at 0.050 inches fits standard hex keys for precise torque application
• Meets ASME/ANSI B18.3 and ASTM F880 standards for dimensional and material conformance

Compatibility

Designed as a standard 4-40 UNC flat point set screw for use in any threaded assembly requiring this thread size and point style per ASME/ANSI B18.3 specifications.

Installation Notes

Install using a calibrated hex key of 0.050 inches to avoid rounding the drive socket. Ensure the mating threaded hole is clean and free of debris before driving the screw. Do not exceed the torque capacity appropriate for a 4-40 stainless fastener, as over-torquing can gall A2 stainless threads. This fastener is sold in minimum order quantities of 100 pieces.