S-91327A301 10-24 ASME B18.3 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Vibration-resistant locking with permanent nylon patch thread locker, maintaining secure fastening from -50° to 250°F in demanding environments.
- Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term durability and reliability in harsh industrial settings.
- High tensile strength of 70,000 psi and Rockwell B55 hardness for reliable performance under heavy loads and stress.
- Precision Class 3A thread fit and controlled shoulder tolerances for exact alignment and reduced assembly play in machinery.
- Easy installation and removal with hex socket drive and knurled head, providing superior grip and torque application.
- Broad regulatory compliance with ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.
- Versatile UNC coarse threading and 1/4" shoulder diameter for stable pivoting and spacing in various assemblies.
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw is engineered to address critical alignment and vibration challenges in industrial applications. The 18-8 stainless steel material offers excellent corrosion resistance, ideal for environments exposed to moisture or chemicals, while the nylon patch thread locker provides permanent vibration resistance without requiring additional adhesives. The precise 1/4" shoulder diameter with tight tolerances ensures accurate component positioning, reducing wear and misalignment in moving parts. Commonly used in machinery, automotive, and electronics, this socket head shoulder screw with knurled texture enhances grip during installation, streamlining maintenance and improving operational efficiency in heavy-duty assemblies.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with UNC coarse threading, ensuring precise engagement and reliability. Shoulder diameter tolerance is controlled from -0.004" to -0.002", and shoulder length tolerance from -0.005" to 0.005" for consistent performance. It complies with ASME B18.3 specifications for dimensional accuracy and is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.
