S-91099A468 8-32 x 7/8" 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 for extended service life in harsh environments
- High tensile strength of 80,000 PSI ensures reliable fastening performance under substantial mechanical loads
- Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks during installation
- 82° countersink angle with undercut head profile delivers flush mounting and improved seating in tapered holes
- Phillips No. 2 drive compatibility offers widespread tool accessibility and efficient installation
- Full threading along 7/8" length maximizes grip range and adjustment flexibility in various material thicknesses
- Rockwell B80 hardness rating maintains structural integrity against deformation during repeated use
Professional Applications & Engineering Value
These 8-32 UNC flat head screws deliver critical engineering solutions where corrosion resistance and high-strength fastening are paramount. The passivated 18-8 stainless steel construction prevents oxidation in chemical processing, marine, and food-grade environments, while the coarse UNC thread provides rapid installation in soft metals and plastics. The undercut flat head design with 82° countersink ensures secure, flush mounting in precision assemblies, eliminating protrusion issues in confined spaces. Engineered to withstand vibration and thermal cycling, these fully threaded screws maintain 80,000 PSI tensile strength across industrial machinery, electrical enclosures, and structural frameworks where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exact ASME B18.6.3 specifications with Class 2A thread fit tolerances for consistent performance. Features 8-32 UNC coarse threads with right-hand orientation and fully threaded 7/8" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries. The Rockwell B80 hardness and 82° countersink angle meet industrial standards for durability and proper seating in tapered applications.
