S-91082A115 ASTM A108, ASTM B633 Inch-to-Metric Female Hex Thread Adapters
Inch-to-Metric Female Hex Thread Adapters
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Basic Information
Material & Strength Parameters
End A Thread Parameters
End B Thread Parameters
Hex Parameters
Drive Parameters
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Key Features & Benefits at a Glance
- Seamless inch-to-metric conversion for versatile equipment compatibility across international standards
- Exceptional corrosion resistance through zinc-plated steel construction in demanding industrial environments
- Superior load-bearing capacity with 78,000 psi tensile strength for heavy-duty applications
- Precision thread engagement with Class 2B/6H fit ensuring reliable, vibration-resistant connections
- Optimized torque transmission via external hex drive design (1/2" size) for secure installation
- Extended service life with Rockwell B85 hardness resisting wear and deformation
- Regulatory compliance assurance meeting ASTM A108, ASTM B633 and RoHS 3 standards
Professional Applications & Engineering Value
This female hex thread adapter solves critical compatibility challenges in industrial maintenance and manufacturing. The zinc-plated steel construction provides essential corrosion protection for machinery exposed to moisture or chemicals, while the Rockwell B85 hardness maintains thread integrity under repeated use. The 1/4"-20 to M3 thread conversion capability enables seamless integration between American and European equipment systems, eliminating the need for custom machining. The external hex drive with 2 1/2" length offers superior leverage for tight installations in confined spaces. Engineered to ASTM A108 specifications, this adapter delivers reliable performance in automotive assembly, industrial machinery, and precision equipment applications where thread adaptation is critical for operational continuity.
Specification Summary & Compliance
This inch-to-metric adapter maintains Class 2B (inch) and Class 6H (metric) thread tolerances for precision fit. Manufactured to ASTM A108 and ASTM B633 material standards with RoHS 3 (2015/863/EU) compliance under exemption 6(a)-I for lead as steel alloying element. The adapter features unified (1/4"-20) to metric (M3 x 0.5 mm) thread conversion with 5/8" and 6.4 mm thread lengths respectively, ensuring proper engagement depth for secure connections in industrial applications.
