S-90298A520 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 18-8 Stainless Steel and passivated finish, ideal for harsh industrial environments.
- Precise component alignment ensured by a 1/4" shoulder diameter with tight tolerance of -0.001" to 0.001".
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications.
- Secure and easy installation via a knurled socket head with hex drive, preventing slippage during torque application.
- Reliable thread engagement with Class 3A fit and coarse UNC threads for quick assembly and vibration resistance.
- Consistent dimensional accuracy adhering to ASME B18.3 standards, ensuring interchangeability and reduced assembly errors.
- Environmentally compliant design meeting RoHS 3 and REACH regulations, supporting sustainable manufacturing practices.
Professional Applications & Engineering Value
This 10-24 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 Stainless Steel construction, enhanced by a passivated finish, provides excellent resistance to corrosion and wear, making it suitable for machinery, automotive, and electronic equipment exposed to moisture or chemicals. The Class 3A thread fit and coarse UNC thread design facilitate rapid, secure fastening while minimizing the risk of cross-threading. With a knurled socket head, operators achieve better grip and torque control, reducing installation time and tool wear. Ideal for pivots, shafts, and spacers, this screw ensures long-term reliability in high-stress environments, streamlining maintenance and enhancing product lifecycle.
Specification Summary & Compliance
This shoulder screw features a 10-24 UNC thread size with Class 3A thread fit for precise tolerance, a shoulder diameter of 1/4" (tolerance: -0.001" to 0.001"), and shoulder length of 5/16" (tolerance: -0.005" to 0.005"). It complies with ASME B18.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence in industrial applications.
