S-90337A364 2-56 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
- Exceptional strength and durability with Rockwell B55 hardness and 70,000 psi tensile strength, ensuring reliable performance under load.
- Precise shoulder alignment with controlled shoulder diameter and length tolerances for accurate component positioning.
- Space-saving low-profile socket head allows for installation in tight spaces while providing secure hex drive engagement.
- Consistent thread performance with UNC coarse threads and Class 2A fit, facilitating easy assembly and vibration resistance.
- Environmental compliance assurance meeting RoHS 3 and REACH standards, supporting sustainable manufacturing practices.
- Right-hand thread design ensures standard installation compatibility and efficient fastening in various applications.
Professional Applications & Engineering Value
This 2-56 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to corrosion and wear, making it suitable for demanding environments like machinery, electronics, and automotive systems. The low-profile socket head with a hex drive offers secure torque application in confined spaces, while the precisely machined shoulder ensures accurate component spacing and alignment. With a coarse thread and Class 2A fit, it enables quick installation and maintains integrity under vibration, reducing maintenance needs and enhancing operational reliability in industrial applications.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include a shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002" for precise alignment. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence in global supply chains.
