S-97832A201 3-48 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
- Precise alignment and secure positioning thanks to the 1/8" shoulder diameter with tight tolerance control
- High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Superior thread engagement ensured by the Class 3A UNC coarse thread fit for reliable fastening
- Easy installation and removal with the 5/64" hex socket drive and knurled head for improved grip
- Enhanced durability from Rockwell B55 hardness, providing excellent wear resistance
- Compliance with environmental regulations including RoHS 3 and REACH for global market acceptance
Professional Applications & Engineering Value
This 3-48 UNC shoulder screw is engineered to solve critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material offers excellent resistance to corrosion and oxidation, making it suitable for machinery, electronics, and automotive components exposed to moisture or chemicals. The hex socket head with knurled texture allows for secure tool engagement in confined spaces, while the Class 3A thread fit and coarse UNC thread ensure quick assembly and vibration resistance. The shoulder provides a precise pivot or bearing surface, reducing wear on connected parts and maintaining dimensional stability under loads up to 70,000 psi tensile strength. Ideal for jigs, fixtures, and rotating mechanisms, this screw delivers long-term reliability and reduces maintenance costs.
Specification Summary & Compliance
This shoulder screw adheres to UNC thread standards with a Class 3A fit for high precision. Dimensions include a 0.25" head diameter, 1/8" shoulder diameter (tolerance: -0.004" to -0.002"), and 5/32" thread length. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of restricted hazardous substances for industrial and international use.
