S-90316A214 4-40 x 1/2" ASME B18.6.3 Stainless Steel Flanged Hex Head Screws with Slotted Drive
Stainless Steel Flanged Hex Head Screws with Slotted Drive
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable load-bearing performance
- Enhanced stability and vibration resistance due to the integrated flange design, reducing the need for separate washers
- Quick and secure installation with external hex/slotted drive options for versatile tool compatibility
- Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fastening in various materials
- Full-length threading provides maximum grip and uniform stress distribution along the entire 1/2" length
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 4-40 UNC hex head screws deliver exceptional performance in machinery assembly, electronic enclosures, and automotive components. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, extending service life in challenging environments. The flanged construction distributes clamping force effectively, preventing surface damage and maintaining joint integrity under vibration. With coarse UNC threads and Class 2A fit, these screws offer reliable engagement in both metallic and non-metallic substrates, while the external hex/slotted drive accommodates various installation tools for efficient assembly line operations.
Specification Summary & Compliance
This 4-40 UNC hex head screw features precise Class 2A thread fit with coarse thread spacing, manufactured to ASME B18.6.3 specifications. The screw maintains dimensional accuracy with 1/2" length, 3/16" head width, and 15/64" flange diameter. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across various industrial sectors while meeting stringent quality standards.
