S-92695A661 5/16"-18 x 1 1/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
• Exceptional holding power from Class 3A thread fit, ensuring precise, vibration-resistant fastening in critical assemblies
• High-strength durability with Rockwell C45 hardness alloy steel, resisting deformation under heavy loads
• Secure, flush installation with headless design and 90° cone point, preventing component interference while providing concentrated gripping force
• Efficient installation and removal using standard 5/32" hex key drive, reducing assembly time and tool wear
• Reliable coarse thread engagement with UNC 5/16"-18 specification, ideal for quick assembly in softer materials or where debris may be present
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications where vibration resistance and permanent positioning are paramount. The 90° cone point concentrates force into a small contact area, creating superior resistance to rotational movement in pulleys, gears, and collars. Manufactured from high-strength alloy steel with Rockwell C45 hardness, it maintains dimensional stability under extreme mechanical stress. The UNC coarse thread provides rapid installation and reliable performance in materials where fine threads might strip, while the hex drive ensures maximum torque transfer without cam-out. Ideal for power transmission systems, industrial machinery, and precision equipment assembly where long-term reliability cannot be compromised.

Specification Summary & Compliance

This set screw features 5/16"-18 UNC Class 3A threads with coarse spacing, providing precise dimensional accuracy per ASME B18.3 specifications. The manufacturing process adheres to ASTM F912 standards, ensuring consistent quality and performance. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, confirming environmental safety and material restrictions are fully met for industrial applications worldwide.