S-91781A840 10-32 x 2 1/2" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws
Stainless Steel Slotted 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 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
- Precise thread engagement with Class 2A fit and UNF fine threads ensuring vibration resistance and secure fastening
- Optimized flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
- Controlled installation depth through partially threaded design, preventing over-tightening in sensitive assemblies
- Broad compatibility with slotted drive system accommodating standard tools for maintenance flexibility
- Full regulatory compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications
Professional Applications & Engineering Value
These 10-32 UNF flat head screws deliver critical engineering advantages in precision assembly applications. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making them ideal for industrial equipment, machinery panels, and electronic enclosures operating in demanding environments. The partially threaded configuration with UNF fine threads ensures precise clamping force distribution while preventing thread damage in soft materials. With Class 2A thread fit and standardized 82° countersink angle, these screws guarantee consistent flush mounting in precision manufacturing applications where surface integrity and vibration resistance are paramount.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with Class 2A thread fit tolerance and UNF (Unified National Fine) thread form. Complies with ASME B18.6.3 mechanical standards for dimensional consistency and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements for hazardous substance restrictions. Thread specifications include #10-32 size with 0.19" major diameter and fine thread spacing, ensuring compatibility with standard UNF threaded components across industrial applications.
