S-97345A962 3/4"-10 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, ideal for harsh chemical and marine environments
- Exceptional mechanical strength with 70,000 psi tensile and 35,000 psi shear capacity for heavy-duty applications
- Precision Class 3A thread fit ensures reliable engagement and vibration resistance in high-stress assemblies
- Knurled socket head provides enhanced grip for installation and removal, even with gloved hands
- 1/2" hex drive compatibility allows for standard tooling and consistent torque application
- Coarse UNC threading enables rapid assembly and reduced cross-threading risks in industrial settings
- Strict dimensional tolerances on shoulder diameter and length guarantee precise alignment in rotating machinery
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw delivers critical performance in demanding mechanical systems where alignment accuracy and corrosion resistance are paramount. The Class 3A thread fit and UNC coarse thread profile prevent loosening under dynamic loads, while the knurled socket head ensures secure tool engagement during high-torque installations. Engineered for precision machinery, conveyor systems, and industrial automation equipment, the screw's 7/8" shoulder diameter acts as a reliable pivot or spacer in rotating assemblies. Its 70,000 psi tensile strength withstands extreme operational stresses, making it suitable for heavy-duty fastening in manufacturing, marine, and chemical processing applications where corrosion-resistant fasteners are essential for long-term reliability.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit and precise shoulder diameter tolerance of -0.004" to -0.002". Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety. Thread specifications include 3/4"-10 UNC coarse spacing with right-hand orientation and Rockwell B79 hardness rating.
