S-92800A273 9/16"-18 x 4 1/2" 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 psi ensures reliable performance in demanding applications
- Precision Class 2A thread fit provides consistent engagement and reduces assembly issues
- Rockwell B70 hardness rating delivers excellent durability and wear resistance
- External hex drive design allows for easy installation with standard tools
- Partial threading configuration offers optimal grip strength where needed
- Compliance with RoHS 3 and REACH regulations ensures environmental and safety standards are met
Professional Applications & Engineering Value
These 18-8 stainless steel hex head screws with 9/16"-18 UNF fine threading are engineered to solve critical challenges in industrial assembly operations. The combination of 80,000 psi tensile strength and Rockwell B70 hardness provides exceptional resistance to vibration loosening and mechanical stress, making them ideal for heavy machinery, structural frameworks, and equipment subjected to dynamic loads. The Class 2A thread fit ensures precise mating with corresponding nuts and threaded components, reducing the risk of cross-threading during high-volume assembly. The partial threading design concentrates gripping power exactly where needed, while the external hex drive facilitates quick installation and removal with standard wrenches. These corrosion-resistant fasteners maintain integrity in challenging environments, from manufacturing facilities to outdoor installations, delivering long-term reliability and reduced maintenance costs.
Specification Summary & Compliance
This 9/16"-18 UNF hex head screw features precision Class 2A thread fit according to UNF standards, ensuring dimensional accuracy and reliable performance. The fastener maintains 4 1/2" length with 1 3/8" minimum thread length and fine thread spacing for optimal engagement. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted substances and commitment to workplace safety standards.
