S-91375A162 6-40 x 1/4" ASME B18.3, ASTM F912 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 holding power with Class 3A thread fit for precise, vibration-resistant assemblies
- Exceptional durability from Rockwell C45 hardened alloy steel construction
- Enhanced corrosion resistance through black-oxide surface treatment
- Secure installation with hex drive design providing maximum torque transmission
- Reliable positioning with cup tip design for positive component location
- Industry-standard compatibility meeting ASME B18.3 specifications
- Environmental compliance with RoHS 3 and REACH regulations for global applications
Professional Applications & Engineering Value
This 6-40 UNF Class 3A set screw delivers exceptional performance in demanding industrial applications where precision and reliability are paramount. The black-oxide alloy steel construction combined with Rockwell C45 hardness provides superior resistance to wear and deformation under heavy loads. The fine thread spacing and Class 3A fit ensure minimal backlash and superior vibration resistance in precision machinery, automotive components, and electronic enclosures. The headless design with hex drive allows for flush mounting in confined spaces while maintaining high torque capability. The cup tip creates positive engagement with mating surfaces, preventing slippage in critical positioning applications. Engineered to meet ASME B18.3 standards, this fastener provides consistent performance across manufacturing, aerospace, and automation systems.
Specification Summary & Compliance
This precision set screw features 6-40 UNF fine threads with Class 3A fit for superior dimensional accuracy and thread engagement. The fastener measures 1/4" length with 0.138" thread diameter and right-hand thread direction. Manufacturing compliance includes ASME B18.3 specifications (ASTM F912) ensuring consistent quality and performance. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, making this component suitable for global industrial applications requiring strict regulatory adherence.
