S-91793A119 4-40 x 1 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 construction and passivated finish, ideal for harsh industrial environments
- Exceptional holding power with 100,000 psi tensile strength and Rockwell B100 hardness for reliable, long-term fastening
- Precise thread engagement through Class 2A thread fit and UNC coarse threading, ensuring consistent assembly performance
- Wide rounded binding head profile provides enhanced surface contact and prevents pull-through in delicate materials
- Full 1-1/2" threading delivers maximum grip length and load distribution across the entire fastener
- Slotted drive compatibility allows for quick installation with standard tools while maintaining clean aesthetics
- Regulatory compliance assurance meeting ASME B18.6.3, RoHS 3, and REACH standards for global industrial applications
Professional Applications & Engineering Value
These 4-40 UNC rounded head binding screws deliver critical engineering solutions where corrosion resistance and secure fastening are paramount. The combination of 18-8 Stainless Steel material with passivated finish creates a durable barrier against oxidation and chemical exposure, making them ideal for electrical enclosures, panel mounting, and precision instrumentation. The wide rounded head profile distributes clamping force effectively, preventing damage to softer materials while the fully threaded design and Class 2A thread fit ensure consistent engagement depth and vibration resistance. These binding head screws solve common industrial challenges of material compatibility, environmental durability, and installation reliability in demanding assembly applications.
Specification Summary & Compliance
This binding screw features precise Class 2A thread fit with UNC coarse threading (4-40 size) and right-hand thread direction. Manufacturing complies with ASME B18.6.3 specifications, ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, making it suitable for global industrial distribution and use in regulated industries.
