S-90276A239 10-24 x 5/16" ASME B18.6.3 Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• High tensile strength of 60,000 psi ensures reliable performance under significant mechanical stress
• Class 2A thread fit provides optimal assembly clearance while maintaining secure fastening integrity
• Coarse UNC threading enables rapid installation and reduced cross-threading risks in industrial applications
• Full threading along 5/16" length offers maximum grip range and adjustment flexibility
• Rockwell B69 hardness rating delivers excellent durability against wear and deformation
• Rounded slotted head design combines traditional tool compatibility with smooth, snag-free surfaces

Professional Applications & Engineering Value

Engineered for industrial fastening applications requiring dependable performance, this 10-24 UNC zinc-plated steel screw addresses critical assembly challenges. The coarse thread configuration significantly reduces installation time while providing robust holding power in materials where fine threads might strip. The zinc-plated surface treatment creates a protective barrier against oxidation and environmental degradation, making it ideal for machinery, equipment manufacturing, and outdoor installations. With its rounded head slotted design, this fastener accommodates standard screwdrivers while minimizing protrusion concerns in tight spaces. The fully threaded shank ensures consistent engagement depth across various material thicknesses, providing engineers with versatile fastening solutions that maintain structural integrity under vibration and load variations.

Specification Summary & Compliance

This rounded head screw maintains precise Class 2A thread fit tolerances per UNC standards, ensuring consistent mating with corresponding nuts and threaded holes. Manufacturing strictly adheres to ASME B18.6.3 specifications for dimensional accuracy and performance requirements. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) regulations for chemical safety. All measurements follow the inch system with a standardized right-hand thread direction and coarse thread spacing for universal compatibility across North American industrial applications.