S-91273A616 5/16"-24 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
- Exceptional corrosion resistance with 18-8 Stainless Steel construction and Black Oxide finish, ideal for harsh industrial environments.
- Precise alignment and reduced wear thanks to the 5/8" shoulder length and standard shoulder fit, ensuring stable component positioning.
- High tensile and shear strength rated at 70,000 psi and 35,000 psi respectively, providing reliable performance under heavy loads.
- Secure, non-slip installation with a knurled socket head and 5/32" hex drive, allowing for easy torque application without stripping.
- Fine UNF threading with Class 2A fit ensures tight, vibration-resistant connections in precision assemblies.
- Consistent hardness and durability with Rockwell B55 rating, maintaining structural integrity over repeated use.
- Compliance with environmental standards including RoHS 3 and REACH, meeting global regulatory requirements for safe usage.
Professional Applications & Engineering Value
This 5/16"-24 UNF shoulder screw is engineered to address common industrial challenges such as misalignment, vibration loosening, and corrosion in machinery. The 18-8 Stainless Steel material, combined with a Black Oxide finish, offers superior resistance to rust and chemicals, making it suitable for automotive, aerospace, and manufacturing equipment. The fine thread and Class 2A thread fit provide secure fastening in high-stress applications, while the knurled socket head ensures easy installation with standard tools. Its 5/8" shoulder length acts as a precise spacer or pivot, reducing wear on moving parts and extending service life in assemblies like bearings, linkages, and robotic arms.
Specification Summary & Compliance
This shoulder screw features a Class 2A thread fit with UNF fine threading (5/16"-24), ensuring dimensional accuracy and interchangeability. It adheres to industry standards for tensile strength (70,000 psi) and shear strength (35,000 psi), with a Rockwell B55 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility in global supply chains.
