S-92695A646 1/4"-20 x 7/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with 90° cone point design that bites into materials for maximum resistance against loosening under vibration
• Exceptional durability from Rockwell C45 hardness alloy steel construction, maintaining structural integrity in demanding applications
• Enhanced corrosion resistance through black-oxide coating, extending service life in industrial environments
• Precise torque transmission via hex socket drive design, preventing tool slippage and ensuring consistent installation
• Reliable thread engagement with Class 3A UNC coarse threads, providing superior fit and vibration resistance
• Space-saving installation thanks to headless design, ideal for applications with limited clearance
• Industry-standard compliance meeting ASME B18.3 specifications for guaranteed performance and interchangeability

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical performance in industrial applications where vibration resistance and permanent positioning are paramount. The 90° cone point creates a permanent seating by digging into shaft materials, preventing component slippage in power transmission systems, gear assemblies, and rotating machinery. Engineered with Class 3A UNC coarse threads, it provides superior holding strength while accommodating minor material variations. The hex socket drive enables high-torque installation without head protrusion, making it ideal for confined spaces in manufacturing equipment, automotive components, and heavy machinery. The Rockwell C45 hardness ensures the screw maintains its structural integrity under repeated stress cycles, while the corrosion-resistant black-oxide finish extends service life in challenging industrial environments.

Specification Summary & Compliance

This 1/4"-20 x 7/8" set screw features precision Class 3A thread fit with UNC coarse thread spacing, ensuring consistent performance and interchangeability. Manufactured to meet ASME B18.3 specifications where applicable per ASTM F912, guaranteeing dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (as of 06/14/2023 for 235 SVHC), meeting international environmental and safety standards for industrial use.