S-92443A845 1/4"-20 x 1/2" ASME B18.6.3 Brass Binding Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with brass construction, ideal for harsh environments and electrical applications
• Excellent electrical conductivity making these screws perfect for grounding and electronic assembly applications
• Enhanced durability with Rockwell B40 hardness and 50,000 psi tensile strength for long-lasting performance
• Secure fastening ensured by fully threaded design and coarse UNC thread pattern
• Precise fit and easy installation with Class 2A thread tolerance and slotted drive design
• Wide bearing surface from the 0.525" binding head distributes pressure evenly
• Regulatory compliance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These brass rounded head slotted screws deliver exceptional value in demanding industrial applications where corrosion resistance and electrical conductivity are critical. The binding head style with wide 0.525" diameter provides superior clamping force distribution, preventing surface damage in delicate assemblies. The 1/4"-20 UNC coarse thread configuration ensures rapid installation and reliable performance in materials where fine threads might strip. With fully threaded design and Class 2A fit, these screws maintain consistent engagement depth throughout the fastener length, eliminating the need for precise hole depth calculations. Ideal for electrical panels, marine equipment, and precision instruments, these ASME B18.6.3 compliant fasteners solve common engineering challenges related to galvanic corrosion, electromagnetic compatibility, and assembly efficiency.

Specification Summary & Compliance

This rounded head screw features precise Class 2A thread fit with 1/4"-20 UNC coarse thread specifications and right-hand threading. Manufacturing complies with ASME B18.6.3 standards for dimensional accuracy and performance. Environmental compliance includes RoHS 3 (2015/863/EU) with exemption 6(a)-I for lead as an alloying element in brass, and full REACH (EC 1907/2006) compliance as of June 14, 2023. The screw maintains dimensional consistency with 0.525" head diameter, 0.165" head height, and 1/2" length for reliable interchangeability in industrial applications.