S-90193A124 1/4"-20 x 1/2" ASME B18.6.3 Stainless Steel Flanged Hex Head Screws with Slotted Drive

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
• High-strength performance with 100,000 psi tensile strength and Rockwell B100 hardness for reliable load-bearing capabilities
• Easy and secure installation featuring an external hex/slotted drive for versatile tool compatibility and a flanged design for increased bearing surface
• Precise and reliable threading with Class 2A UNC coarse threads ensuring consistent fit and ease of assembly in various materials
• Full-threaded design provides maximum grip and clamping force along the entire 1/2" length for robust fastening
• Compliance with major industrial standards including ASME B18.6.3, guaranteeing dimensional accuracy and interchangeability
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements

Professional Applications & Engineering Value

This 1/4"-20 UNC Hex Head Screw is engineered to address critical challenges in demanding industrial applications. The use of 316 Stainless Steel provides exceptional resistance to corrosion from chemicals, saltwater, and other aggressive agents, making it a top choice for marine, chemical processing, and food industry equipment. The fully threaded and flanged construction enhances joint integrity by distributing clamp load effectively and preventing loosening under vibration. The coarse thread (UNC) and Class 2A fit facilitate quick assembly and reduce the risk of cross-threading, while the combination of external hex and slotted drive offers flexibility for installation in confined spaces with standard tools, ensuring efficient maintenance and assembly processes.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC thread with a Class 2A fit, ensuring standard dimensional accuracy and interchangeability. It is manufactured in compliance with the ASME B18.6.3 specification for dimensional consistency. The product also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory standards, confirming its adherence to environmental and safety requirements for hazardous substance restrictions.