S-92210A583 5/16"-18 x 1" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precision Class 3A thread fit provides superior engagement and eliminates cross-threading issues
• Hex drive design with 3/16" drive size delivers maximum torque transmission and prevents stripping
• 82° countersink angle with standard flat head profile creates flush mounting for clean, professional installations
• Full threading along 1" length enables complete adjustment flexibility and uniform clamping force
• Rockwell B55 hardness rating maintains thread integrity and prevents deformation during installation

Professional Applications & Engineering Value

These 5/16"-18 UNC flat head screws with 18-8 stainless steel construction address critical industrial fastening challenges where corrosion resistance and structural integrity are paramount. The passivated finish significantly enhances surface durability while maintaining the material's inherent corrosion-resistant properties, making these hex drive screws ideal for machinery, marine equipment, and outdoor applications. The Class 3A thread fit ensures precise mating with tapped holes, reducing assembly time and preventing thread damage in high-volume production environments. The combination of 70,000 psi tensile strength and fully threaded design provides uniform stress distribution, eliminating weak points in critical joints. These industrial screws are engineered to withstand vibration, thermal cycling, and chemical exposure while maintaining consistent clamping force.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with Class 3A thread fit and UNC coarse threading (5/16"-18) for reliable engagement. Complies with ASME B18.3 specifications for dimensional accuracy and performance requirements. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in various industrial applications. Features standard 82° countersink angle and right-hand thread direction for universal compatibility with industry-standard installations.