S-90316A544 1/4"-20 x 1 1/4" ASME B18.6.3 Stainless Steel Flanged Hex Head Screws with Slotted Drive

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction for long-term reliability in harsh environments
• Superior load-bearing capacity with 100,000 psi tensile strength to withstand heavy-duty applications
• Optimized installation efficiency through external hex drive design combined with flange for secure, vibration-resistant fastening
• Reliable thread engagement with UNC coarse threads and Class 2A fit ensuring consistent performance in industrial assemblies
• Enhanced durability with Rockwell B100 hardness providing excellent wear resistance and repeated use capability
• Full-threaded design offering maximum grip length and uniform stress distribution across the entire fastener
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial applications

Professional Applications & Engineering Value

This 18-8 stainless steel hex head screw delivers critical performance advantages for demanding industrial applications where corrosion resistance and structural integrity are paramount. The combination of 100,000 psi tensile strength and Rockwell B100 hardness ensures reliable performance in heavy machinery, structural frameworks, and equipment subjected to constant stress. The UNC coarse thread design provides superior holding power in softer materials and faster installation in production environments, while the integrated flange eliminates the need for separate washers, streamlining assembly processes. Engineered to ASME B18.6.3 specifications, this fully threaded fastener offers consistent performance in automotive, construction, and manufacturing applications where vibration resistance and long-term reliability are essential.

Specification Summary & Compliance

This 1/4"-20 x 1-1/4" hex head screw features precision Class 2A thread fit with UNC coarse threading and right-hand direction. Manufactured to exact ASME B18.6.3 standards, the fastener ensures dimensional accuracy and interchangeability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and material safety for global industrial supply chains.