S-91500A624 3/8"-16 x 1" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Precise flush installation with standard 82° countersink angle and flat head design for seamless, vibration-resistant surfaces
• Optimized drive engagement through Phillips No. 4 drive style ensuring secure torque application and reduced cam-out risk
• Consistent threading performance with UNC coarse threads and Class 2A fit providing rapid assembly and vibration resistance
• Full-length thread coverage across the 1" length for maximum grip depth and material engagement in diverse applications
• Regulatory compliance assurance meeting ASME B18.6.3 standards plus RoHS 3 and REACH environmental directives

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 3/8"-16 UNC flat head Phillips screws deliver critical performance where corrosion resistance and mechanical integrity are paramount. The 316 stainless steel composition combined with passivated finish provides exceptional protection against chemical degradation, saltwater exposure, and industrial atmospheres, making them ideal for marine equipment, chemical processing plants, and food processing machinery. The fully threaded design ensures maximum holding power across the entire fastener length, while the coarse UNC thread profile enables rapid installation in both metallic and non-metallic materials. The flat head configuration with standard 82° countersink creates flush-mounted assemblies that eliminate protrusions in machinery, conveyor systems, and structural frameworks where smooth surfaces are essential for safety and operation.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerances per UNC standards with 3/8"-16 coarse threading and right-hand direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance adherence. Critical dimensions include 1" length, 0.717" head diameter, and standard flat head profile with 82° countersink angle.