S-90275A294 12-24 x 3/4" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction for long-lasting performance in demanding environments
• Superior holding power with 60,000 psi tensile strength and Rockwell B70 hardness ensuring reliable fastening under stress
• Optimal thread engagement through fully threaded UNC coarse threads and Class 2A fit for quick installation and vibration resistance
• Flush mounting capability with standard 82° countersink angle flat head design for seamless surface integration
• Industry-standard compatibility meeting ASME B18.6.3 specifications for consistent performance and interchangeability
• Enhanced safety compliance with RoHS 3 and REACH regulations for environmentally responsible manufacturing
• Versatile drive option featuring slotted head for compatibility with standard screwdrivers and easy maintenance

Professional Applications & Engineering Value

These 12-24 UNC flat head screws deliver critical engineering advantages for industrial applications where surface flushness and reliable fastening are paramount. The zinc-plated steel construction provides essential corrosion protection in manufacturing environments, while the coarse thread design ensures superior grip in various materials including metals and plastics. The fully threaded configuration maximizes contact surface area, distributing load evenly to prevent loosening under vibration - a common challenge in machinery and equipment assembly. With their 82° countersink angle, these screws sit perfectly flush in prepared holes, eliminating protrusions that could interfere with moving parts or create safety hazards. 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

Manufactured to precise Class 2A thread fit tolerances with UNC coarse threads (12-24 size) in right-hand direction. The 3/4" length screws feature standard flat head profile with 0.412" head diameter and slotted drive style. Full compliance with ASME B18.6.3 manufacturing standards ensures dimensional accuracy and performance reliability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances.