S-91781A096 3-48 x 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 for extended service life in harsh environments
- Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance under stress
- Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
- Optimal flush mounting featuring standard 82° countersink angle and flat head design for seamless surface integration
- Industry-standard compliance meeting ASME B18.6.3 specifications for dimensional accuracy and interchangeability
- Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated applications
- Full-threaded design providing maximum grip length and load distribution across the entire fastener
Professional Applications & Engineering Value
These 3-48 UNC flat head slotted screws deliver critical engineering solutions where flush surface mounting and corrosion resistance are paramount. The 18-8 stainless steel composition with passivated finish provides exceptional protection against oxidation and chemical exposure, making them ideal for industrial equipment, electronic enclosures, and marine applications. The Class 2A thread fit combined with coarse UNC threading ensures rapid assembly and reliable performance in vibration-prone environments. With 80,000 psi tensile strength, these fully threaded fasteners maintain structural integrity in high-stress applications while the standardized 82° countersink angle guarantees proper seating in precision-machined components.
Specification Summary & Compliance
Manufactured to exacting ASME B18.6.3 standards, these screws feature Class 2A thread fit tolerances for consistent performance. The 3-48 UNC coarse thread configuration with right-hand direction ensures compatibility with standard components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety, while the passivated finish on 18-8 stainless steel provides enhanced corrosion protection without compromising mechanical properties.
