S-90318A302 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 and marine environments.
- Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable, high-stress applications.
- Precise alignment and spacing ensured by the smooth, precisely machined 3/16" diameter shoulder with minimal tolerance.
- Easy installation and removal with the 3/32" hex socket drive, providing secure torque transfer in confined spaces.
- Durable thread performance from the coarse 8-32 UNC thread with Class 2A fit, reducing cross-threading and ensuring long service life.
- Ultra-low profile head design for applications requiring minimal clearance without sacrificing drive integrity.
- Compliance with environmental regulations, being RoHS 3 and REACH compliant for safe use in regulated industries.
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw is engineered to address critical challenges in precision assembly, such as component misalignment and vibrational loosening. The 3/16" shoulder length provides a stable bearing surface for rotating parts like gears and pulleys, while the UNC coarse thread and Class 2A fit ensure rapid, secure fastening in automated production lines. Its ultra-low socket head and hex drive allow for efficient installation in tight spaces, common in machinery, electronics, and automotive subsystems. The passivated finish enhances corrosion resistance, making it suitable for applications exposed to chemicals or moisture, thereby reducing maintenance costs and extending equipment lifespan.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. The shoulder features precise tolerances (diameter: -0.001" to 0", length: 0" to 0.002") to ensure reliable performance. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for industrial use without hazardous substances.
