S-91301A006 5-40 x 3/32" Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit ensuring precise, vibration-resistant connections in demanding applications
• Enhanced corrosion resistance from black-oxide surface treatment, extending service life in harsh industrial environments
• High-strength durability with Rockwell C45 hardness alloy steel construction, resisting deformation under heavy loads
• Space-saving headless design allowing flush mounting where clearance is limited without compromising drive engagement
• Reliable coarse threading (UNC) providing faster installation and reduced cross-threading risks in assembly operations
• Precision hex drive compatibility with 1/16" tools ensuring secure torque transmission and minimal tool slippage
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

This 5-40 UNC set screw delivers critical engineering solutions for industrial applications requiring maximum clamping force and vibration resistance. The black-oxide alloy steel construction combined with Rockwell C45 hardness provides exceptional durability against wear and environmental exposure, making it ideal for precision machinery, automotive components, and permanent assemblies. The headless design with 1/16" hex drive enables installation in confined spaces while maintaining reliable torque transfer. With coarse thread spacing and Class 3A thread fit, this fastener ensures rapid, secure engagement that withstands dynamic loads and thermal cycling, reducing maintenance frequency in critical industrial set screw applications.

Specification Summary & Compliance

Manufactured to precise UNC thread standards with Class 3A thread fit tolerances for superior dimensional accuracy. The 5-40 thread size features coarse thread spacing and right-hand thread direction conforming to industrial specifications. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across global markets. Material certification includes Rockwell C45 hardness verification for consistent mechanical performance in alloy steel fasteners.