S-91793A107 4-40 x 5/16" 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- High tensile strength of 100,000 psi ensures reliable performance in demanding binding and fastening applications
- Rockwell B100 hardness provides superior durability and resistance to wear over extended use
- Class 2A thread fit with UNC coarse threading delivers smooth installation and secure fastening in various materials
- Fully threaded design maximizes grip strength and distributes load evenly across the entire screw length
- Wide rounded binding head profile offers excellent bearing surface and prevents pull-through in soft materials
- Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility
Professional Applications & Engineering Value
These 4-40 UNC rounded head screws deliver outstanding engineering value in binding applications where reliability and corrosion resistance are critical. Manufactured from 18-8 stainless steel with a passivated finish, they effectively resist oxidation and chemical exposure, making them suitable for electronics, machinery, and outdoor equipment. The coarse UNC threads and Class 2A fit ensure quick, secure fastening without cross-threading, while the wide rounded head distributes clamping force to prevent damage to assembled components. With full threading and high tensile strength, these screws provide consistent performance in vibration-prone environments, reducing maintenance needs and extending service life in industrial settings.
Specification Summary & Compliance
This rounded head screw features precise Class 2A thread fit with 4-40 UNC coarse threads and is fully threaded along its 5/16" length. It meets ASME B18.6.3 manufacturing specifications for dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to strict environmental and safety standards for industrial use.
