S-97345A727 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, ideal for harsh industrial environments and extended service life
- Precise component alignment enabled by the 2 1/2" shoulder with tight tolerances, reducing assembly errors and improving machine performance
- High-strength reliability with 70,000 psi tensile strength and 35,000 psi shear strength, ensuring secure fastening under heavy loads
- Easy installation and removal using the 1/4" hex drive and knurled head, providing excellent grip and torque application
- Consistent thread engagement with Class 3A UNC coarse threads, offering superior fit and vibration resistance in dynamic applications
- Compliance with industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and regulatory acceptance
- Durable performance backed by Rockwell B79 hardness, maintaining integrity in high-stress mechanical systems
Professional Applications & Engineering Value
This 316 stainless steel shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 2 1/2" shoulder length with precise tolerances ensures accurate positioning of moving parts in machinery, reducing wear and operational downtime. The Class 3A UNC coarse thread provides robust, vibration-resistant connections, essential for equipment subjected to dynamic loads. With a knurled head and 1/4" hex drive, it allows for quick, secure installation in confined spaces, enhancing maintenance efficiency. Its high tensile strength and corrosion-resistant properties make it suitable for demanding sectors like automation, automotive, and marine engineering, where reliability and longevity are paramount.
Specification Summary & Compliance
This shoulder screw features a 3/8"-16 UNC coarse thread with Class 3A fit for high precision, a shoulder diameter of 1/2" with tight tolerance control, and a shoulder length of 2 1/2" for accurate alignment. It is manufactured in compliance with ASME B18.3 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safety and sustainability in industrial use.
