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UNF vs UNJF Thread Comparison

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UNF Threads: UNF is part of UTS standard used in US and Canada
Has 60° thread angle and smaller pitch than UNC
Commonly found in JIC, ORB, and ORFS hydraulic fittings
UNJF Threads: UNJF is an evolution of UNF with larger controlled root radius
Features flatter thread core and larger external thread radius
Designed for high-pressure fluid systems like hydraulic and pneumatic
Has tighter manufacturing tolerances for leak-tight connections
Key Differences: UNF threads are versatile for various applications
UNJF threads are specifically designed for high-pressure systems
UNJF threads offer better fatigue resistance and strength
Both types share similar thread pitch and diameter