S-91381A340 10-32 x 3/8" 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 with black-oxide coating on alloy steel, extending service life in demanding environments
- Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in high-vibration applications
- Non-marring brass tip protects sensitive surfaces from damage while maintaining strong clamping force
- High-strength Rockwell C28 hardness provides reliable performance under repeated adjustments and heavy loads
- Compact headless design allows flush installation where space constraints exist
- Fine UNF thread spacing delivers enhanced adjustment precision and vibration resistance
- Industry-standard compliance with ASME B18.3 ensures interchangeability and quality consistency
Professional Applications & Engineering Value
This 10-32 UNF Class 3A set screw addresses critical engineering challenges in precision assemblies where surface protection and vibration resistance are paramount. The black-oxide alloy steel construction provides exceptional corrosion resistance for industrial environments, while the brass soft tip prevents galling and damage to expensive components during clamping operations. The fine thread spacing and Class 3A fit work synergistically to maintain positional accuracy in machinery, automotive, and aerospace applications where micrometer-level adjustments are crucial. The combination of Rockwell C28 hardness and hex drive design ensures reliable torque transmission without stripping, making it ideal for permanent installations requiring repeated maintenance access.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread tolerance for precision fit. Features 10-32 UNF fine threads with right-hand orientation and 3/32" hex drive. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 3/8" length and 0.19" thread diameter maintain dimensional consistency across production batches for reliable performance in OEM applications.
