S-92198A111 1/4"-28 x 1 1/2" 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
- Exceptional corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh industrial environments.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and vibration.
- Precise Class 2A thread fit guarantees smooth assembly and secure fastening in demanding applications.
- Fine UNF thread design provides superior holding power and resistance to loosening compared to coarse threads.
- Partially threaded shank allows for controlled clamping force and prevents thread damage during installation.
- External hex drive and hex head enable easy installation and removal with standard tools, reducing assembly time.
- Full compliance with ASME B18.2.1, RoHS 3, and REACH ensures product reliability and environmental safety for global supply chains.
Professional Applications & Engineering Value
Engineered for industrial applications where durability and precision are paramount, this 1/4"-28 UNF hex head screw delivers outstanding performance in machinery, automotive, and construction assemblies. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for outdoor or chemically exposed environments. With a fine thread spacing and Class 2A thread fit, it ensures tight, secure connections that resist vibration-induced loosening—critical for equipment longevity. The partially threaded design focuses clamping force where needed, preventing thread stripping and simplifying alignment. Its external hex drive allows for high-torque installation, reducing the risk of tool slippage and improving workplace efficiency in B2B procurement scenarios.
Specification Summary & Compliance
This hex head screw features a 1/4"-28 UNF thread with Class 2A dimensional accuracy, ensuring consistent fit and performance. It meets ASME B18.2.1 manufacturing standards for dimensional and mechanical integrity. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in regulated industries and global markets.
