S-91781A249 10-24 x 1 1/4" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel 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
• Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Flush mounting capability with standard 82° countersink angle and flat head design for smooth surface finishes
• Full threading length provides maximum grip and uniform stress distribution along the entire 1-1/4" length
• Industry compliance assurance meeting ASME B18.6.3 specifications and environmental regulations (RoHS 3, REACH)
• Easy installation and removal with slotted drive design for straightforward maintenance operations

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver critical performance in demanding applications where corrosion resistance and structural integrity are paramount. The combination of 18-8 stainless steel construction and passivated surface treatment creates a robust barrier against chemical exposure and atmospheric corrosion, significantly extending service life in manufacturing equipment, marine hardware, and food processing machinery. The fully threaded design with Class 2A thread fit ensures consistent clamping force distribution, preventing loosening under vibration while the 82° countersink angle provides seamless flush mounting in precision assemblies. Engineered to ASME B18.6.3 standards, these screws offer reliable interoperability with existing industrial components, reducing installation time and maintenance costs across various sectors including aerospace subassemblies, electrical enclosures, and heavy machinery frameworks.

Specification Summary & Compliance

This flat head screw features precise 10-24 UNC coarse threads with Class 2A tolerance for consistent fitment. Manufacturing complies with ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations regarding hazardous substances. Additional specifications include right-hand thread direction, standard flat head profile, and full threading along the 1-1/4" length.