S-91772A624 5/16"-18 x 1" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Optimized installation efficiency through Phillips No. 4 drive and coarse UNC threading for faster assembly
• Precise thread engagement with Class 2A thread fit ensuring consistent fastening and vibration resistance
• Complete thread coverage with fully threaded design providing maximum grip along the entire 1" length
• Broad regulatory compliance meeting ASME B18.6.3 standards and RoHS/REACH environmental directives
• Versatile pan head design offering low-profile rounded head for applications requiring flush or minimal protrusion

Professional Applications & Engineering Value

These 5/16"-18 UNC coarse thread pan head screws deliver critical performance advantages in demanding industrial settings. The passivated 18-8 stainless steel construction provides exceptional resistance to corrosion and chemical exposure, making them ideal for manufacturing equipment, marine components, and food processing machinery where environmental durability is paramount. The coarse UNC threading combined with Class 2A thread fit ensures rapid installation and reliable vibration resistance in high-stress assemblies. The fully threaded design maximizes surface contact for superior clamping force distribution, while the pan head profile with Phillips No. 4 drive offers optimal torque transmission and accessibility in confined spaces. These engineering features collectively address common industrial challenges including assembly time reduction, maintenance frequency minimization, and long-term reliability in corrosive operating conditions.

Specification Summary & Compliance

This 5/16"-18 UNC coarse thread screw features precise Class 2A thread fit tolerances and fully threaded 1" length configuration. Manufacturing complies with ASME B18.6.3 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility in industrial supply chains.