S-91084A109 ASTM A108 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 Thread Conversion: Effortlessly bridge between 8-32 inch and M4 metric systems, eliminating compatibility issues in mixed-standard assemblies.
- Exceptional Durability: Crafted from Black-Oxide Steel with a 78,000 psi tensile strength and Rockwell B85 hardness to withstand high-stress applications and resist wear.
- Precision Thread Fit: Features Class 2B (inch) and Class 6H (metric) thread fits for reliable, vibration-resistant connections that minimize loosening.
- Corrosion-Resistant Finish: The black-oxide surface treatment provides enhanced protection against rust, extending service life in harsh industrial environments.
- Optimized for Tool Engagement: The 1/4" external hex drive and 1-1/2" hex length offer superior grip and torque application, reducing installation time and effort.
- Compliance & Reliability: Manufactured to ASTM A108 standards and RoHS 3 compliant, ensuring material consistency and environmental safety for global supply chains.
- Versatile Industrial Use: Ideal for adapting components in machinery, automotive, and equipment manufacturing where inch and metric threads coexist.
Professional Applications & Engineering Value
This Inch-to-Metric Female Hex Thread Adapter solves critical challenges in global manufacturing and maintenance by enabling precise thread conversion between 8-32 (inch) and M4 (metric) systems. Its Black-Oxide Steel construction, combined with Class 2B/6H thread fit, ensures tight, reliable seals that resist vibration-induced loosening—common in dynamic industrial settings like automotive assembly or heavy machinery. The external hex drive design allows for quick installation with standard tools, reducing downtime. By meeting ASTM A108 specifications, it guarantees dimensional accuracy and strength, making it a trusted component for engineers sourcing durable, RoHS 3 compliant adapters that uphold performance in corrosive or high-load environments.
Specification Summary & Compliance
This adapter adheres to precise Class 2B (inch) and Class 6H (metric) thread tolerances for optimal fit. It conforms to ASTM A108 material standards and is RoHS 3 (2015/863/EU) compliant under exemption 6(a)-I for lead as an alloying element in steel, ensuring regulatory alignment for industrial use.
