S-90316A538 1/4"-20 x 5/8" ASME B18.6.3 Stainless Steel Flanged Hex Head Screws with Slotted Drive
Stainless Steel Flanged Hex Head Screws with Slotted Drive
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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
- Exceptional holding power with 100,000 psi tensile strength and Rockwell B100 hardness for reliable fastening
- Enhanced load distribution through integrated flange design, reducing surface pressure and preventing loosening
- Quick installation and removal with external hex drive and slotted head for versatile tool compatibility
- Precise thread engagement with Class 2A UNC coarse threading ensuring consistent performance in various materials
- Full threading coverage along the 5/8" length provides maximum grip and vibration resistance
- Regulatory compliance with RoHS 3 and REACH standards for safe use across multiple industries
Professional Applications & Engineering Value
This 18-8 stainless steel hex head screw delivers critical performance advantages in demanding applications where corrosion resistance and structural integrity are paramount. The UNC coarse threading with Class 2A fit ensures rapid installation and reliable engagement in metals, plastics, and composite materials, while the integrated flange design distributes clamping force evenly to prevent surface damage and maintain joint integrity under vibration. Engineered to ASME B18.6.3 specifications, this fully threaded screw provides maximum thread contact for superior pull-out resistance in machinery assembly, structural frameworks, and heavy equipment manufacturing. The combination of external hex drive and slotted head offers installation flexibility with standard tools, reducing assembly time in production environments.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (1/4"-20), this hex head screw meets ASME B18.6.3 mechanical and dimensional requirements. The screw maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial applications worldwide.
