S-90324A048 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
- Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Superior thread engagement and vibration resistance due to Class 3A fit and left-hand thread design
- High tensile and shear strength (70,000 psi tensile, 35,000 psi shear) for demanding mechanical applications
- Precise component alignment with a 3/16" shoulder diameter and tight manufacturing tolerances
- Secure, non-slip installation enabled by the knurled head and hex socket drive
- Reliable performance in automated assembly with coarse UNC threads for faster driving
- Compliance with global environmental standards including RoHS 3 and REACH for unrestricted use
Professional Applications & Engineering Value
This 8-32 UNC left hand thread shoulder screw is engineered to address critical challenges in precision assembly and rotating machinery. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, extending service life in demanding conditions. The Class 3A thread fit ensures minimal backlash and superior vibration resistance, which is crucial for maintaining alignment in assemblies subject to reverse rotation or cyclical loads. The 3/16" shoulder diameter with its precise tolerances acts as a reliable pivot or spacer, preventing component misalignment. Combined with the knurled head for enhanced grip and the hex socket drive for high-torque installation, this screw delivers reliable performance in applications like robotics, conveyor systems, and precision instruments where failure is not an option.
Specification Summary & Compliance
This shoulder screw conforms to UNC coarse thread standards with a Class 3A thread fit for high precision. The shoulder diameter is 3/16" with a tolerance of -0.004" to -0.002", and the shoulder length is 1/8" with a tolerance of -0.005" to 0.005". It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
