S-92186A394 1/2"-20 x 4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 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 with 316 Stainless Steel construction, ideal for harsh environments including marine and chemical applications
- High tensile strength of 70,000 psi ensures reliable performance in heavy-duty and structural fastening applications
- Precision Class 2A thread fit guarantees consistent engagement and vibration resistance in demanding assemblies
- External hex drive design provides secure tool grip and easy installation with standard wrenching tools
- Partial threading configuration offers optimal clamping force distribution and prevents thread damage in deep holes
- Fine thread spacing (UNF) delivers enhanced load distribution and improved fatigue resistance compared to coarse threads
- Full regulatory compliance with ASME B18.2.1 manufacturing standards and RoHS 3/REACH environmental directives
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this 316 Stainless Steel hex head screw addresses critical challenges in corrosive environments where standard fasteners fail. The combination of UNF fine threading and Class 2A thread fit ensures precise alignment and superior vibration resistance in machinery, structural frameworks, and marine equipment. The external hex drive facilitates quick installation and high torque application, while the partial threading design prevents galling in deep-tapped holes. With exceptional corrosion resistance and 70,000 psi tensile strength, this fastener delivers long-term reliability in chemical processing, offshore operations, and food processing equipment where durability and compliance are paramount.
Specification Summary & Compliance
This 1/2"-20 UNF hex head screw features precision Class 2A thread tolerance with fine thread spacing and right-hand thread direction. Manufactured to ASME B18.2.1 specifications with Rockwell B70 hardness rating. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across regulated industries.
