S-90337A431 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 thanks to 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
- Precise alignment and reduced wear with a precisely machined 1" shoulder featuring a tight diameter tolerance of -0.001" to 0".
- High strength and durability offering a tensile strength of 70,000 psi and Rockwell B55 hardness for demanding applications.
- Easy installation in confined spaces with its low profile socket head and 3/32" hex drive, requiring minimal clearance.
- Reliable thread engagement provided by the 8-32 UNC coarse thread with Class 2A fit, ensuring consistent fastening.
- Enhanced surface protection from the passivated finish, increasing resistance to corrosion and extending service life.
- Compliance with environmental and safety standards, being RoHS 3 and REACH compliant for use in regulated industries.
Professional Applications & Engineering Value
This low profile socket head shoulder screw is engineered to solve critical alignment and space constraints in precision assemblies. The 1" precise shoulder length acts as a permanent dowel, providing accurate component positioning and reducing shear stress on the 8-32 UNC thread. Made from 18-8 Stainless Steel with a passivated finish, it resists corrosion in industrial settings, while the low profile head allows for use in compact designs common in machinery, automation, and electronics. Its Class 2A thread fit and tight shoulder tolerances ensure repeatable performance, minimizing assembly errors and maintenance needs in high-vibration environments.
Specification Summary & Compliance
This shoulder screw features a 8-32 UNC coarse thread with Class 2A fit and a precise shoulder diameter tolerance of -0.001" to 0". It is manufactured from 18-8 Stainless Steel with a passivated finish, and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets international environmental and safety standards for industrial use.
