S-90311A149 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
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
- Reliable vibration resistance provided by the integrated nylon patch thread locker, maintaining secure fastening from -50° to 250°F.
- High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding load applications.
- Precise alignment and smooth rotation enabled by the standard shoulder fit and knurled head for improved grip during installation.
- Consistent thread engagement with Class 3A fit and UNC coarse threads, ensuring easy assembly and reduced cross-threading risks.
- Durable and hardened performance from Rockwell B79 hardness, enhancing wear resistance in repetitive mechanical use.
- Broad regulatory compliance including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, such as misalignment and vibrational loosening in high-stress assemblies. The 10-24 UNC coarse thread with Class 3A fit provides reliable threading in metals and plastics, while the nylon patch thread locker secures joints without disassembly under thermal cycles from -50° to 250°F. Its knurled socket head and hex drive allow for straightforward installation in confined spaces, making it ideal for industrial fasteners in robotics, automotive, and aerospace sectors where durability and compliance with ASME B18.3 are paramount.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit and UNC coarse thread standards, with precise shoulder diameter and length tolerances (e.g., shoulder diameter: -0.004" to -0.002"). Manufactured in compliance with ASME B18.3, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.
