S-93425A205 1/4"-28 Hex Nuts

Key Features & Benefits at a Glance

• Left-hand thread design provides secure fastening in applications requiring reverse rotation resistance
• Zinc-plated steel construction offers excellent corrosion protection for extended service life in demanding environments
• Grade 2 strength rating ensures reliable performance for medium-duty industrial applications
• Class 2B thread fit with UNF fine threading delivers precise engagement and vibration resistance
• External hex drive design allows for high-torque installation using standard wrench tools
• Standard hex profile ensures compatibility with common tools and replacement convenience
• Environmental compliance meets RoHS 3 and REACH standards for safe industrial use

Professional Applications & Engineering Value

This left hand thread hex nut addresses critical engineering challenges in applications where standard right-hand threads would naturally loosen due to rotational forces. The 1/4"-28 UNF fine thread spacing provides superior vibration resistance compared to coarse threads, making these zinc-plated steel nuts ideal for machinery, automotive, and equipment assembly where reverse rotation is a concern. The external hex drive configuration ensures maximum torque application during installation, while the Class 2B thread fit guarantees consistent engagement with mating components. These industrial fasteners maintain integrity in environments where counter-clockwise motion could compromise standard fastener security.

Specification Summary & Compliance

This hex nut features 1/4"-28 UNF left hand threads with Class 2B thread fit for precision engagement. Manufactured to standard dimensional specifications with 7/16" width and 7/32" height. The fastener meets Grade 2 strength classification and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring regulatory compliance for industrial applications worldwide.