S-8077A263 1 1/8"-7 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 delivering 70,000 psi tensile and 35,000 psi shear strength for heavy-duty applications
- Precision Class 3A thread fit ensures secure, vibration-resistant fastening in critical assemblies
- Knurled socket head design provides enhanced grip during installation with standard hex drive compatibility
- Accurate 6" shoulder length with tight tolerances maintains precise component alignment in machinery
- Full regulatory compliance with ASME B18.3 standards and RoHS/REACH environmental directives
- Coarse UNC threading enables quick assembly and disassembly in maintenance operations
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw with Black Oxide finish delivers critical performance in demanding industrial applications where corrosion resistance and mechanical reliability are paramount. The precision-machined 6" shoulder length with controlled tolerances provides exact bearing surfaces for rotating components in machinery, conveyor systems, and precision equipment. The Class 3A thread fit and coarse UNC threading ensure vibration-resistant fastening while facilitating maintenance accessibility. Engineered to ASME B18.3 specifications, this socket head shoulder screw offers consistent performance in manufacturing, automation, and heavy equipment where dimensional stability under load is essential.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit and shoulder diameter tolerance of -0.004" to -0.002". Thread specifications conform to 1 1/8"-7 UNC coarse thread pattern with 1-1/2" thread length. Full compliance with ASME B18.3 manufacturing standards, RoHS 3 (2015/863/EU) directive, and REACH (EC 1907/2006) environmental regulations. Mechanical properties include Rockwell B79 hardness and verified tensile/shear strength ratings.
