S-92695A678 1/2"-13 x 7/8" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Exceptional holding power with Class 3A thread fit for superior vibration resistance and secure fastening in demanding applications
• Enhanced corrosion protection from black-oxide coating on alloy steel, extending service life in industrial environments
• Maximum penetration and grip with 90° cone point design that bites into materials for reliable component positioning
• High-strength durability with Rockwell C45 hardness rating to withstand heavy loads and repeated adjustments
• Easy installation and removal using standard 1/4" hex drive tools, reducing assembly time and maintenance costs
• Optimized for coarse threading with UNC 1/2"-13 specification, providing faster installation and better performance in softer materials
• Space-saving headless design allowing flush mounting where clearance is limited without compromising strength

Professional Applications & Engineering Value

This high-performance set screw delivers critical engineering solutions for industrial applications requiring maximum holding power and reliability. The black-oxide alloy steel construction combined with Rockwell C45 hardness ensures exceptional resistance to wear and deformation under heavy loads. The 90° cone point provides superior biting action into shaft materials, preventing slippage in high-torque applications such as power transmission systems, gear assemblies, and precision machinery. The Class 3A thread fit with UNC coarse threading offers excellent vibration resistance while facilitating quicker installation in production environments. These headless set screws with 1/4" hex drive are ideal for space-constrained applications where flush mounting is essential, making them perfect for automotive, manufacturing, and heavy equipment industries.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 3A thread fit tolerance for superior mechanical performance. Thread specification conforms to UNC 1/2"-13 coarse thread standards with right-hand direction. Full compliance with ASME B18.3 manufacturing specifications, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) regulations for hazardous substance restrictions.