S-90166A118 1/4"-20 x 2" ASTM F593, IFI 111 Stainless Steel Flanged Hex Head Screws
Stainless Steel Flanged 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 with 18-8 stainless steel construction, ideal for harsh industrial environments
- Enhanced load distribution through the integrated flange design, reducing surface pressure and preventing loosening
- High tensile strength of 70,000 psi ensures reliable performance under heavy mechanical stress
- Quick and secure installation with UNC coarse threading and external hex drive for efficient assembly
- Precise thread engagement with Class 2A fit, providing consistent fastening without cross-threading risks
- Durable material hardness (Rockwell B80) maintains screw integrity and resists wear over repeated use
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable usage
Professional Applications & Engineering Value
This 18-8 stainless steel hex head flange screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding applications. The flange design eliminates the need for separate washers, distributing clamp load evenly to protect sensitive surfaces and enhance joint stability. With UNC coarse threads and a partially threaded shank, it provides rapid installation in machinery, automotive assemblies, and structural frameworks where high tensile strength and corrosion resistance are critical. Its external hex drive allows for straightforward torque application using standard tools, reducing assembly time while meeting ASTM F593 specifications for consistent quality in industrial hex screws.
Specification Summary & Compliance
This screw adheres to Class 2A thread fit for precise dimensional accuracy and features a 1/4"-20 UNC coarse thread with a minimum thread length of 3/4". Manufactured in accordance with ASTM F593 standards, it ensures reliable mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial and engineering applications.
