S-90275A296 12-24 x 1" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Excellent holding power with full threading and 60,000 psi tensile strength for reliable, vibration-resistant connections
• Precision thread fit with Class 2A tolerance ensuring smooth installation and consistent performance
• Optimized flush mounting with standard 82° countersink angle for seamless surface integration
• Enhanced durability with Rockwell B70 hardness providing excellent resistance to wear and deformation
• Broad compatibility with UNC coarse thread profile fitting standard industrial components
• Simplified installation with slotted drive design accommodating common hand tools

Professional Applications & Engineering Value

These 12-24 UNC flat head slotted screws deliver exceptional engineering value in industrial fastening applications where reliability and precision are paramount. The zinc-plated steel construction provides essential corrosion protection for machinery, equipment assemblies, and metal fabrication projects exposed to harsh operating conditions. The fully threaded design ensures maximum grip length and load distribution, while the coarse thread profile facilitates quicker installation and superior resistance to vibration loosening. With their standard 82° countersink angle, these screws create flush surfaces in manufactured products, eliminating protrusions that could interfere with mechanical operation. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes them ideal for applications requiring repeated disassembly and reassembly without thread degradation.

Specification Summary & Compliance

These flat head screws feature precision Class 2A thread fit with UNC coarse thread specifications (12-24 thread size) and are manufactured to exact dimensional requirements. The products strictly comply with ASME B18.6.3 standards for dimensional accuracy and performance. Environmental compliance is assured through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, confirming the absence of restricted hazardous substances. All measurements adhere to the inch system with standardized dimensions including 1" length, 0.412" head diameter, and right-hand thread direction.