S-93190A597 5/16"-18 x 3 1/2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 Stainless Steel Hex Head 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 environments and chemical exposure
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
- Full UNC coarse threading allows for faster installation and better grip in a wide range of materials
- Class 2A thread fit guarantees consistent, easy assembly with standard nuts and tapped holes
- External hex drive design enables high torque application with common tools for secure fastening
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality, safety, and environmental responsibility
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw in 316 stainless steel delivers exceptional value in demanding industrial settings where corrosion resistance and structural integrity are critical. The coarse thread design provides superior holding power in softer materials and faster installation times, while the fully threaded configuration ensures maximum engagement length for enhanced clamping force. The external hex drive accommodates high-torque applications common in machinery assembly, construction, and marine equipment. With its 70,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains performance under extreme conditions, reducing maintenance frequency and downtime in chemical processing, offshore operations, and food processing equipment where corrosion resistant fasteners are essential.
Specification Summary & Compliance
This 3-1/2" length hex head screw features 5/16"-18 UNC coarse threads with Class 2A thread fit per ASME B18.2.1 specifications, ensuring dimensional accuracy and interchangeability. The fastener is manufactured from 316 stainless steel and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally sensitive applications and global supply chain requirements.
