S-91737A109 6-32 x 1/2" ASME B18.6.3 Stainless Steel Fillister Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B85 hardness for secure, vibration-resistant fastening
• Optimized drive engagement through Phillips No. 2 drive style, providing efficient installation and reduced cam-out risk
• Precise thread compatibility with UNC coarse threads and Class 2A fit, enabling quick assembly and reliable connections
• Enhanced clearance design with high, narrow fillister head profile, allowing for deeper tool engagement in confined spaces
• Full-length threading ensuring maximum grip along the entire 1/2" length for superior holding power
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

These 6-32 UNC coarse thread screws with 18-8 stainless steel construction and passivated finish deliver critical performance advantages for industrial applications where corrosion resistance and mechanical reliability are paramount. The combination of 80,000 psi tensile strength and Rockwell B85 hardness ensures these rounded head Phillips screws maintain clamping force under vibration and load variations. The fillister head design with high, narrow profile provides superior clearance for assembly tools while the fully threaded configuration maximizes engagement in materials ranging from metals to engineered plastics. Ideal for industrial equipment, electronic enclosures, and machinery where corrosion resistant screws must withstand demanding environmental conditions while maintaining precise Class 2A thread fit for consistent assembly operations.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit tolerance ensuring precise interchangeability. The UNC coarse thread (6-32) provides optimal performance in most materials with 0.138" thread diameter and standardized spacing. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming these screws meet the latest international standards for hazardous substance restrictions and chemical safety protocols.