S-91998A110 Left-Hand to Right-Hand Female Hex Thread Adapters

Key Features & Benefits at a Glance

• Durable black-oxide steel construction provides superior corrosion resistance and extended service life in demanding industrial environments
• Rockwell B80 hardness rating ensures exceptional strength and resistance to deformation under high torque applications
• Precision Class 2B thread fit on both ends guarantees secure, vibration-resistant connections without cross-threading risks
• 7/16" external hex drive design offers superior grip and torque transmission compatibility with standard industrial tools
• Dual female thread configuration enables reliable left-hand to right-hand thread direction adaptation in confined spaces
• Full REACH and RoHS 3 compliance meets international environmental standards for safe use across regulated industries
• 2" hex length provides ample gripping surface for secure tool engagement during installation and removal

Professional Applications & Engineering Value

This specialized female hex thread adapter solves critical connection challenges in industrial maintenance and assembly operations where opposing thread directions must be joined. The black-oxide steel surface treatment provides essential corrosion protection in humid or chemically exposed environments, while the Rockwell B80 hardness ensures the adapter maintains dimensional stability under repeated high-torque applications. Engineers value the Class 2B thread fit for its precision tolerance that prevents loosening from vibration in machinery, automotive, and heavy equipment applications. The external hex drive design offers compatibility with standard wrenches and sockets, making this adapter ideal for field service and production line scenarios requiring reliable thread direction adaptation without compromising connection integrity.

Specification Summary & Compliance

This adapter features precision 5/16"-18 threads with Class 2B fit on both ends, ensuring consistent thread engagement and dimensional accuracy. The manufacturing complies with REACH (EC 1907/2006) regulations regarding substance restrictions and is RoHS 3 (2015/863/EU) compliant with exemption 6(a) for lead as an alloying element in steel. The external hex drive measures 7/16" across flats with a 2" length for optimal tool engagement, while both thread ends maintain 1/2" thread length for secure fastening applications.