S-91793A110 4-40 x 1/2" ASME B18.6.3 Stainless Steel Binding Head Slotted Screws
Stainless Steel Binding Head Slotted Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel and passivated finish for long-lasting performance in harsh environments
- High tensile strength of 100,000 psi ensures reliable fastening under substantial mechanical loads
- Wide rounded binding head design provides excellent bearing surface and prevents pull-through in softer materials
- Class 2A thread fit with UNC coarse threading offers easier assembly and reduced cross-threading risk
- Full threading along the 1/2" length enables maximum grip and adjustment flexibility
- Rockwell B100 hardness maintains thread integrity and resistance to deformation during installation
- Slotted drive compatibility allows for quick installation with standard screwdrivers
Professional Applications & Engineering Value
This 4-40 UNC rounded head slotted screw delivers exceptional engineering value across industrial applications where corrosion resistance and mechanical reliability are critical. The 18-8 stainless steel construction combined with passivated finish effectively resists oxidation and chemical exposure in electrical enclosures, machinery assemblies, and marine components. The wide rounded binding head distributes clamping force evenly, preventing damage to sensitive substrates while the coarse UNC threading ensures rapid installation in production environments. With full threading along its entire length, this fastener provides maximum engagement in both thin and thick materials, making it ideal for binding posts, terminal connections, and precision equipment where vibration resistance and long-term performance are essential.
Specification Summary & Compliance
This binding head screw features Class 2A thread fit per UNC standards with precise dimensional accuracy. Manufacturing complies with ASME B18.6.3 specifications for mechanical fasteners, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, confirming environmental responsibility and regulatory adherence for global industrial applications.
