S-8077A448 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 316 Stainless Steel with Black Oxide finish, ideal for harsh chemical and marine environments
• Precise component alignment with 1/4" shoulder diameter maintaining consistent spacing in assemblies
• Superior thread reliability with Class 3A fit ensuring tight tolerances and vibration resistance
• High-strength performance delivering 70,000 psi tensile strength for demanding industrial applications
• Secure installation and removal through hex socket drive with knurled head for enhanced grip
• Broad regulatory compliance meeting ASME B18.3 standards plus RoHS 3 and REACH environmental requirements
• Optimized for automated assembly with right-hand UNC coarse threads for efficient high-volume production

Professional Applications & Engineering Value

This 10-24 UNC shoulder screw delivers critical engineering solutions where precise component positioning and durability are paramount. The 316 Stainless Steel construction with Black Oxide finish provides superior protection against chloride-induced stress corrosion cracking, making it ideal for chemical processing equipment, marine hardware, and food processing machinery. The 1/4" shoulder diameter acts as a precision spacer or pivot point in assemblies, eliminating the need for additional components while maintaining exact alignment under load. With 70,000 psi tensile strength and Class 3A thread fit, these industrial shoulder screws withstand high vibration environments while the hex socket drive ensures secure installation in confined spaces. The knurled head texture provides additional grip during manual adjustments, making these precision shoulder fasteners essential for robotics, precision machinery, and automated manufacturing systems.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit per UNC specifications, ensuring precise engagement and reliable performance. The shoulder features tight dimensional tolerances with diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Full compliance with ASME B18.3 manufacturing specifications, along with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Mechanical properties include Rockwell B79 hardness and minimum shear strength of 35,000 psi, validating the fastener's reliability in critical applications.