S-90275A825 10-32 x 1/4" ASME B18.6.3 Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Precise flush mounting capability thanks to the 82° countersink angle and undercut flat head design for seamless surface integration
• Reliable thread engagement with Class 2A fit and UNF fine threading, ensuring vibration resistance and secure fastening
• High mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Full-threaded design providing maximum grip length and uniform stress distribution along the entire fastener
• Standard-compliant performance meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental compliance with RoHS 3 and REACH regulations, ensuring safe use across global markets

Professional Applications & Engineering Value

These 10-32 UNF flat head slotted screws deliver exceptional engineering value in precision assembly applications where surface flushness and reliable fastening are critical. The zinc-plated steel construction provides essential corrosion protection for machinery, electrical enclosures, and automotive components exposed to moderate environmental conditions. The undercut flat head profile with 82° countersink angle ensures perfect seating in tapered holes, eliminating protrusions that could interfere with moving parts or aesthetic requirements. With fine UNF threading and Class 2A fit, these screws maintain secure connections in vibration-prone environments while the fully threaded design offers maximum holding power across the entire 1/4" length. The combination of 60,000 psi tensile strength and Rockwell B70 hardness makes these fasteners ideal for applications requiring repeated disassembly and reassembly without thread degradation.

Specification Summary & Compliance

These inch-system fasteners feature precision Class 2A thread fit with UNF (Unified National Fine) 10-32 thread size and right-hand threading direction. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and performance standards. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance for global industrial applications. Critical dimensions include 0.362" head diameter, 0.081" head height, and 0.19" thread diameter with fine thread spacing.