S-92198A306 5/16"-24 x 1 1/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 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 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Fine UNF threading (5/16"-24) provides enhanced vibration resistance and secure fastening in precision assemblies.
- Class 2A thread fit guarantees consistent, easy assembly while maintaining dimensional accuracy.
- External hex drive and hex head design allows for high-torque installation with standard tools, speeding up maintenance.
- Partially threaded shank offers optimal grip and clamping force for materials of varying thicknesses.
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures safety, environmental responsibility, and global regulatory acceptance.
Professional Applications & Engineering Value
This 5/16"-24 UNF hex head screw in 18-8 stainless steel is engineered to address common industrial challenges such as corrosion-induced failure and vibration loosening. The fine thread design enhances grip in metal-to-metal and high-stress applications, reducing maintenance downtime. With a Rockwell B70 hardness and 80,000 psi tensile strength, it withstands extreme mechanical loads in machinery, automotive, and construction assemblies. The partially threaded configuration ensures precise clamping without over-penetration, making it ideal for securing components like brackets, panels, and structural frames where durability and compliance with ASME B18.2.1 standards are critical.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit tolerances for consistent assembly and meets ASME B18.2.1 manufacturing specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use. Key dimensions include a 5/16"-24 UNF fine thread, 1 1/4" length, and partial threading with a minimum thread length of 7/8".
