S-99934A750 1/4"-20 x 1/4" ASME B18.3 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 thanks to 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional holding power with Class 3A thread fit ensuring tight, secure fastening in demanding applications
- Enhanced surface protection from the silver soft tip, preventing damage to mating components during installation
- High durability and strength with Rockwell B80 hardness, providing reliable performance under mechanical stress
- Space-saving headless design with hex socket drive for flush mounting in confined spaces
- Easy installation and removal using standard 1/8" hex tools, reducing assembly time and labor costs
- Coarse UNC threading for quick engagement and reduced cross-threading risks in production environments
Professional Applications & Engineering Value
This 1/4"-20 UNC set screw delivers critical engineering solutions for industrial assembly challenges where precision and reliability are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor elements. The headless design with hex socket drive enables flush mounting in tight spaces while maintaining high torque capability. The Class 3A thread fit ensures precise engagement with mating components, preventing loosening from vibration in machinery, automotive, and aerospace applications. The silver soft tip protects sensitive surfaces from marring while providing enhanced grip on shafts and collars. This combination of features makes it an ideal choice for permanent positioning applications requiring maximum holding power and dimensional stability.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications with Class 3A thread fit for superior dimensional accuracy. Features 1/4"-20 UNC coarse threads with right-hand direction and 1/4" length. The 18-8 stainless steel construction meets Rockwell B80 hardness standards for optimal strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.
