S-91318A010 4-40 x 5/64" Set Screws
Set 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, ideal for harsh environments and extended service life.
- Exceptional holding power from Class 3A thread fit and coarse UNC threading, ensuring secure fastening in demanding applications.
- High durability and strength with Rockwell B80 hardness, providing reliable performance under mechanical stress.
- Easy installation and removal using the 0.050" hex drive, allowing for efficient assembly with standard tools.
- Space-saving headless design that fits flush in assemblies, perfect for compact or restricted spaces.
- Compliance with environmental regulations including RoHS 3 and REACH, ensuring safe and sustainable use in industrial settings.
- Precision engineering with right-hand coarse threads and inch measurements, delivering consistent fit and performance.
Professional Applications & Engineering Value
This 4-40 UNC Class 3A set screw is expertly crafted from 18-8 stainless steel to address common industrial challenges such as corrosion, vibration loosening, and space constraints. The headless hex drive design allows for flush mounting in machinery, electronics, and automotive assemblies, preventing protrusion and enhancing safety. With coarse thread spacing and a Class 3A thread fit, it provides superior grip and resistance to back-out in high-vibration environments. The Rockwell B80 hardness ensures long-term reliability, while the right-hand thread direction and precise inch dimensions facilitate easy integration into existing systems, reducing downtime and maintenance costs in industrial applications.
Specification Summary & Compliance
This set screw adheres to UNC thread standards with a Class 3A thread fit for tight tolerances and optimal performance. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence. Manufactured with precise inch measurements, including a thread size of 4-40 and length of 5/64", it guarantees consistent quality and compatibility in professional fastener systems.
