S-92949A589 5/16"-18 x 1 3/4" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Exceptional tensile strength rated at 70,000 psi ensures reliable, long-lasting fastening under high-stress conditions
- Precise Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
- Hex drive design with 3/16" drive size allows for high-torque installation and easy maintenance access
- Coarse UNC threading enables quick assembly and reduced cross-threading risks in production environments
- Full threading along 1 3/4" length offers maximum adjustability and holding power across material thicknesses
- Rounded button head profile combines sleek appearance with reduced snagging hazards in finished applications
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 18-8 stainless steel rounded head screws deliver exceptional performance where corrosion resistance and mechanical reliability are paramount. The passivated finish significantly enhances surface durability against chemical exposure and oxidation, while the Class 3A thread fit ensures precise, vibration-resistant connections in machinery, structural frameworks, and equipment assemblies. The combination of 70,000 psi tensile strength and Rockwell B55 hardness provides optimal resistance to stripping and deformation under load. The hex drive configuration accommodates standard tools for efficient installation in confined spaces, making these fully threaded fasteners ideal for manufacturing, automotive, and marine applications requiring consistent clamping force and environmental protection.
Specification Summary & Compliance
This 5/16"-18 UNC screw features coarse threading with precision Class 3A thread fit and full compliance with ASME B18.3 dimensional standards. Manufacturing adheres to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring material safety and regulatory acceptance for global industrial applications.
