S-92186A315 1/4"-28 x 1 1/4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
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 in harsh environments thanks to 316 stainless steel construction
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 2A thread fit guarantees smooth assembly and secure fastening in critical applications
- External hex drive design allows for high-torque installation with standard tools, reducing assembly time
- Fine UNF threading provides enhanced grip and superior resistance to loosening compared to coarse threads
- Partial threading offers unthreaded shank strength where needed while maintaining full thread engagement
- Full regulatory compliance with ASME B18.2.1, RoHS 3 and REACH ensures material safety and quality assurance
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 1/4"-28 UNF hex head screws in 316 stainless steel provide exceptional resistance to chemicals, saltwater, and industrial corrosives that would degrade ordinary fasteners. The fine thread spacing and Class 2A thread fit deliver vibration-resistant performance in machinery, equipment assembly, and structural applications where loosening could cause operational failures. With 70,000 psi tensile strength and Rockwell B70 hardness, these partially threaded screws maintain integrity in high-stress applications while the external hex drive enables efficient installation in confined spaces common in industrial maintenance and manufacturing operations.
Specification Summary & Compliance
This 1/4"-28 UNF hex head screw features precision Class 2A thread fit per UNF standards with 0.25" thread diameter and 3/4" minimum thread length. Manufactured to ASME B18.2.1 specifications with Rockwell B70 hardness and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and material restrictions.
