S-8077A316 3/8"-16 ASME B18.3 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 and Black Oxide finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable heavy-duty applications
- Precise thread engagement with Class 3A fit and UNC coarse threads ensuring vibration resistance and secure fastening
- Easy installation and maintenance with hex drive socket head and knurled texture for improved grip during assembly
- Consistent dimensional accuracy with tight shoulder diameter and length tolerances for precise component alignment
- Compliance with industry standards including ASME B18.3 for guaranteed interchangeability and performance
- Environmentally responsible manufacturing meeting RoHS 3 and REACH regulations for safe usage
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this shoulder screw delivers critical performance where precision alignment and durability are paramount. The 316 Stainless Steel material combined with Black Oxide finish provides excellent resistance to corrosion, chemicals, and oxidation, extending service life in manufacturing equipment, machinery assemblies, and outdoor installations. The UNC coarse threads and Class 3A thread fit ensure rapid assembly and reliable clamping force, reducing maintenance downtime. With its knurled head and hex drive design, operators achieve secure tool engagement even in confined spaces. Ideal for pivots, axles, and spacers in automotive, aerospace, and heavy machinery sectors, this component solves alignment and wear challenges while maintaining tensile strength and shear strength under dynamic loads.
Specification Summary & Compliance
This shoulder screw maintains Class 3A thread fit per UNC standards with precise shoulder diameter tolerance (-0.004" to -0.002") and shoulder length tolerance (-0.005" to 0.005"). Manufactured in compliance with ASME B18.3 specifications for dimensional consistency. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring hazardous substance restriction adherence.
