S-93190A312 1/4"-28 x 1 1/2" 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 and chemical exposure.
- High tensile strength of 70,000 psi ensures reliable performance under significant load and stress.
- Fine UNF threading (1/4"-28) provides a tighter, more secure fit and improved vibration resistance.
- Precise Class 2A thread fit guarantees easy assembly and consistent, reliable connections.
- External hex drive and hex head design allows for high torque application and simple installation with common tools.
- Full threading along the 1-1/2" length offers maximum grip and adjustability in a wide range of materials.
- Compliance with major industry standards (ASME B18.2.1, RoHS 3, REACH) ensures product quality, safety, and environmental responsibility.
Professional Applications & Engineering Value
This 1/4"-28 UNF hex head screw is engineered from 316 stainless steel, providing exceptional resistance to corrosion and pitting, which is critical for marine, chemical processing, and outdoor applications. The fine thread and Class 2A fit minimize the risk of loosening under vibration, a common failure point in machinery and equipment. The external hex drive facilitates high-torque installation, ensuring a tight, secure fastening in demanding assemblies. With a 70,000 psi tensile strength and Rockwell B70 hardness, it delivers the durability needed for structural and heavy-duty industrial uses, reducing maintenance and replacement frequency.
Specification Summary & Compliance
This fastener features a 1/4"-28 UNF fine thread with a Class 2A thread fit for precise dimensional accuracy. It is manufactured in compliance with the ASME B18.2.1 standard, ensuring consistent quality and interchangeability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances.
