S-91829A504 3/8"-16 NASM51575 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 construction and passivated finish, ideal for harsh industrial environments
- Precise alignment and reduced wear due to Class 2A thread fit and precisely machined shoulder with tight tolerances
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Reliable fastening performance with UNC coarse threads providing excellent grip and vibration resistance
- Easy installation and removal featuring a standard socket head design for secure tool engagement
- Compliance with strict industry standards including NASM51575, ensuring consistent quality and reliability
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe usage
Professional Applications & Engineering Value
This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 1/2" shoulder diameter with precise fit tolerances ensures accurate component positioning in machinery, reducing misalignment and wear in rotating parts. Made from 18-8 stainless steel with a passivated finish, it resists corrosion in humid or chemical-exposed settings, extending service life. The coarse thread spacing and right-hand thread design facilitate quick assembly and disassembly, while the socket head allows for high-torque applications without slippage. Ideal for aerospace, automotive, and industrial equipment, this fastener provides reliable performance where precision and strength are non-negotiable.
Specification Summary & Compliance
This shoulder screw adheres to Class 2A thread fit for consistent engagement and features a shoulder diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002" for precise assembly. It conforms to UNC thread standards and meets NASM51575 specifications for quality assurance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld.
