S-91259A539 10-24 ASME B18.3, ASTM A574 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
- Exceptional strength for demanding applications with 140,000 psi tensile and 84,000 psi shear strength, ensuring reliable performance under high stress.
- Superior corrosion resistance and reduced light reflection thanks to the black oxide finish, extending service life in various industrial environments.
- Precise and secure fastening with a Class 3A thread fit, minimizing the risk of loosening in critical assemblies.
- Easy installation and removal with a hex socket drive and knurled head, providing excellent grip and torque transmission.
- Durable and wear-resistant material made from alloy steel with Rockwell C32 hardness, offering long-term reliability.
- Guaranteed dimensional accuracy and interchangeability as it meets ASME B18.3 specifications, ensuring consistent quality.
- Safe for use in regulated industries with compliance to RoHS 3 and REACH, supporting environmental and health standards.
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw is engineered from alloy steel and features a black oxide finish to combat corrosion and reduce galling in high-friction environments. Its Class 3A thread fit and precise shoulder diameter provide stable alignment and reduced play in assemblies, making it ideal for precision machinery, automotive components, and industrial equipment where vibration resistance is critical. The socket head with hex drive allows for efficient installation in confined spaces, while the knurled texture enhances grip during manual adjustments. By meeting ASME B18.3 standards, it ensures consistent performance in heavy-duty applications, reducing downtime and maintenance costs.
Specification Summary & Compliance
This shoulder screw adheres to Class 3A thread fit tolerances for superior precision, with a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". It conforms to ASME B18.3 and ASTM A574 manufacturing specifications, and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances for safe industrial use.
