S-90311A136 8-32 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 industrial environments and extended service life.
- Secure, vibration-resistant locking provided by the integrated nylon patch, maintaining clamp load from -50° to 250° F without loosening.
- High-strength performance with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for demanding applications.
- Precision alignment and smooth rotation enabled by the standard shoulder fit and knurled head for improved grip during installation.
- Reliable thread engagement ensured by the Class 3A thread fit and coarse 8-32 UNC thread for quick assembly and high load distribution.
- Easy installation and removal with the hex socket drive and standard head profile, allowing for efficient maintenance with common tools.
- Compliance with global standards including RoHS 3 and REACH, ensuring safety and environmental responsibility in your supply chain.
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to solve critical challenges in precision assemblies. The UNC coarse thread and Class 3A fit provide excellent resistance to vibrational loosening in machinery, while the nylon patch thread locker offers a reliable, chemical-free locking mechanism that performs across a wide temperature range. The knurled head texture enhances grip during torque application, reducing the risk of tool slippage and damage. Ideal for industrial applications such as rotating shafts, pivots, and spacers in automotive, aerospace, and electronics, this fastener ensures durable and secure fastening where alignment and stability are paramount.
Specification Summary & Compliance
This shoulder screw features a Class 3A thread fit with 8-32 UNC coarse thread and a shoulder diameter tolerance of -0.004" to -0.002". It is manufactured to high precision standards, including a Rockwell B79 hardness and tensile strength of 70,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.
