S-91677A130 1/2"-13 x 1" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
• Exceptional tip hardness (Rockwell C60) prevents deformation and maintains secure positioning in high-pressure applications
• Reliable coarse threading (UNC) ensures quick installation and vibration resistance in demanding assemblies
• Precision Class 2A thread fit guarantees consistent engagement and eliminates cross-threading risks
• Ball tip design provides concentrated contact pressure for superior grip on shafts and components
• Hex drive compatibility (1/4") allows for high-torque installation with standard industrial tools
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in global manufacturing

Professional Applications & Engineering Value

This black-oxide alloy steel set screw delivers critical engineering solutions for permanent fastening in high-stress mechanical systems. The Rockwell C32 core hardness combined with Rockwell C60 ball tip creates an optimal balance between structural integrity and surface penetration, preventing component slippage in rotating assemblies. The 1/2"-13 UNC coarse thread configuration maintains holding power under continuous vibration, while the headless design enables flush mounting in confined spaces. Ideal for securing gears, pulleys, and collars in industrial machinery, automotive systems, and precision equipment where reliable positioning and corrosion resistance are paramount.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with 1/2"-13 UNC coarse thread specifications and 1" length dimensional accuracy. The ball tip diameter measures 0.334" with right-hand thread direction for standard installation. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures adherence to international industrial safety standards.