S-91771A066 1-64 x 1/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional tensile strength rated at 80,000 psi for reliable performance in demanding applications
- Precise flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Optimized drive engagement through No. 0 Phillips drive style, reducing cam-out and improving installation efficiency
- Consistent thread performance with Class 2A thread fit and UNC coarse threading for secure, vibration-resistant fastening
- Full-length threading provides maximum grip length and load distribution across the entire fastener
- Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations for global industrial use
Professional Applications & Engineering Value
These 1-64 UNC flat head Phillips screws deliver critical engineering solutions where corrosion resistance and flush surface requirements are paramount. The passivated 18-8 stainless steel construction prevents oxidation in moisture-prone environments, while the 82° countersink angle ensures perfect alignment in precision-machined components. The fully threaded design with coarse UNC spacing provides superior holding power in softer materials and faster installation in production line settings. These industrial-grade fasteners are particularly valuable in electronics enclosures, machinery panels, and marine equipment where vibration resistance and regulatory compliance are essential for long-term reliability and safety.
Specification Summary & Compliance
Manufactured to exact ASME B18.6.3 specifications with Class 2A thread fit tolerances ensuring precise dimensional accuracy. The UNC coarse thread (1-64) with right-hand direction provides industry-standard compatibility. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe use across global markets. Mechanical properties include Rockwell B80 hardness and 80,000 psi tensile strength for consistent performance in industrial fastening applications.
