S-91771A133 5-40 x 1" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws
Stainless Steel Phillips Flat Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
- Exceptional tensile strength rated at 80,000 psi for secure, high-load fastening applications
- Optimized drive engagement with Phillips No. 2 drive for efficient installation and reduced cam-out risk
- Full threading coverage along the 1" length provides maximum grip and uniform stress distribution
- Precision Class 2A thread fit guarantees consistent assembly performance and interchangeability
- 82° countersink angle enables flush mounting for clean, professional finishes
- Comprehensive compliance with ASME B18.6.3, RoHS 3, and REACH ensures regulatory adherence
Professional Applications & Engineering Value
These 5-40 UNC flat head screws deliver critical engineering advantages for industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making them ideal for manufacturing equipment, marine components, and food processing machinery. The coarse UNC threading ensures rapid installation and superior holding power in various materials, while the fully threaded design maximizes engagement depth for vibration-resistant connections. With 80,000 psi tensile strength and Rockwell B80 hardness, these screws maintain clamping force under dynamic loads, preventing joint failure in demanding environments. The Phillips No. 2 drive offers familiar, efficient installation with standard tools, reducing assembly time and improving productivity.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for precision assembly. Features 5-40 UNC coarse threads with right-hand orientation and standard 82° countersink profile. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. All dimensions conform to inch system measurements with 1" length and 0.237" head diameter.
