S-91264A249 10-24 ASME B18.3, ASTM A574 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant secure fastening with integrated nylon pellet thread locker that maintains integrity across a wide temperature range from -50° to 250°F
• Exceptional load-bearing capacity with 140,000 psi tensile strength and 84,000 psi minimum shear strength for demanding mechanical applications
• Precision alignment and rotational control through knurled socket head design and standard shoulder fit for accurate component positioning
• Superior thread engagement reliability with Class 3A thread fit and UNC coarse threading for consistent performance in high-vibration environments
• Enhanced corrosion resistance with black oxide finish protecting against oxidation in industrial operating conditions
• Optimized durability through Rockwell C32 hardened alloy steel construction resisting wear and deformation
• Easy installation and maintenance with standard hex drive (1/8") socket head profile requiring common tools

Professional Applications & Engineering Value

This 10-24 UNC shoulder screw delivers critical engineering solutions for precision machinery and industrial equipment where component alignment and vibration resistance are paramount. The alloy steel construction with black oxide finish provides exceptional strength while resisting corrosion in demanding environments. The integrated nylon pellet thread locker prevents loosening under continuous vibration, making it ideal for rotating assemblies, pivoting mechanisms, and precision guides. The 1-1/4" shoulder length with standard fit ensures precise component spacing and smooth rotational movement, while the knurled socket head facilitates secure tool engagement during installation. These features combine to solve common industrial challenges of misalignment, vibration-induced fastener failure, and maintenance-intensive assemblies.

Specification Summary & Compliance

This shoulder screw maintains Class 3A thread fit tolerance with UNC coarse threading (10-24) and precise shoulder diameter tolerance of -0.004" to -0.002". Manufacturing complies with ASME B18.3 specifications where identified as ASTM A574. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations (current as of 06/14/2023 for 235 SVHC), ensuring environmental responsibility and industrial safety standards.