S-8077A287 3/8"-16 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and black oxide finish, ideal for harsh industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under heavy loads
• Precision Class 3A thread fit for secure fastening and reduced risk of loosening in critical assemblies
• Knurled head design provides improved grip during manual installation and removal
• Long 6" shoulder length with tight tolerances enables accurate component alignment and spacing
• Hex socket drive compatibility with 1/4" tools for easy installation in confined spaces
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH for quality assurance

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw with black oxide finish delivers exceptional corrosion resistance in demanding applications such as machinery, automotive systems, and marine equipment. The 3/8"-16 UNC coarse thread configuration combined with Class 3A thread fit ensures vibration resistance and reliable performance in high-stress environments. The precision-machined 6" shoulder length maintains exact component alignment while the knurled socket head facilitates installation in tight spaces. With 70,000 psi tensile strength and Rockwell B79 hardness, this shoulder screw provides durable fastening solutions for rotating assemblies, pivots, and precision mechanisms where dimensional stability is critical.

Specification Summary & Compliance

This shoulder screw features 3/8"-16 UNC coarse threads with Class 3A thread fit for precision engagement. The 6" shoulder length maintains tight tolerances (-0.005" to 0.005") while the shoulder diameter tolerance ranges from -0.004" to -0.002". Manufactured to ASME B18.3 specifications and compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring quality and regulatory adherence for industrial applications.