S-92443A107 4-40 x 5/16" ASME B18.6.3 Brass Binding Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for humid or demanding industrial environments
• Exceptional tensile strength rated at 50,000 psi for reliable load-bearing performance in critical applications
• Precision Class 2A thread fit ensures smooth installation and secure fastening with standard UNC mating components
• Wide rounded binding head design provides increased bearing surface and prevents snagging in tight spaces
• Rockwell B40 hardness maintains thread integrity and prevents stripping during repeated installations
• Full threading along 5/16" length offers maximum grip depth and adjustment flexibility
• Slotted drive compatibility with standard tools for quick assembly and maintenance operations

Professional Applications & Engineering Value

These 4-40 UNC brass rounded head slotted screws deliver critical performance advantages in electrical enclosures, instrumentation panels, and precision mechanical assemblies where corrosion resistance and non-magnetic properties are essential. The binding head style with wide rounded profile distributes clamping force effectively while preventing damage to sensitive materials. Manufactured to ASME B18.6.3 specifications with coarse thread spacing, these fully threaded fasteners provide superior engagement in soft materials and blind holes, solving common challenges with cross-threading and insufficient thread engagement in industrial fastening applications.

Specification Summary & Compliance

Precision-engineered with Class 2A thread fit and UNC thread form ensuring dimensional accuracy per ASME standards. These binding head screws feature 0.235" head diameter and 5/16" length with right-hand thread direction. Full compliance with ASME B18.6.3 manufacturing specifications, RoHS 3 (2015/863/EU) environmental directives, and REACH (EC 1907/2006) chemical safety regulations for global industrial deployment.