S-91793A108 4-40 x 3/8" ASME B18.6.3 Stainless Steel Binding Head Slotted Screws
Stainless Steel Binding Head Slotted Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance thanks to 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance in demanding applications
- Broad compatibility and easy installation with wide rounded binding head and slotted drive for straightforward tool engagement
- Precise and secure fastening ensured by Class 2A thread fit and UNC coarse threading, reducing cross-threading risks
- Full-length thread engagement provides maximum grip and holding power across the entire 3/8" length
- Regulatory peace of mind with compliance to ASME B18.6.3, RoHS 3, and REACH, meeting strict industrial and environmental standards
- Optimized for binding applications with a specialized rounded binding head profile that securely fastens components without snagging
Professional Applications & Engineering Value
Engineered for precision and durability, these 4-40 UNC rounded head slotted screws solve critical fastening challenges in industrial settings. The 18-8 Stainless Steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making them suitable for electronics, instrumentation, and machinery exposed to moisture or corrosive agents. The binding head style and slotted drive allow for secure fastening in panels, brackets, and assemblies where a low-profile, wide-bearing head is needed to prevent loosening under vibration. With a coarse UNC thread and Class 2A fit, these screws ensure quick installation and reliable thread engagement, reducing assembly time and improving productivity in automated or manual production lines.
Specification Summary & Compliance
This screw adheres to precise dimensional standards with a Class 2A thread fit and UNC coarse threading (4-40 size), ensuring interchangeability and consistent performance. Manufacturing and quality are governed by ASME B18.6.3 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for use in various markets.
