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AN7-41A

Bolt

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Description

Airframe Bolt

Specifications

Country of Origin USA
Drilling Undrilled Head
Fastener Length 4.202 inches minimum and 4.249 inches maximum
Features Provided Finished head
Grip 3 9/16 in
Grip Length 3 9/16, 3.646 inches minimum and 3.678 inches maximum
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Height 0.234 inches minimum and 0.266 inches maximum
Head Style Hexagon Head
Head Type Hexagon
Industry Standards/Certification AN7
Length 4 15/64, 4 7/32 in
Material Steel
Min. Tensile Strength (psi) 125000 pounds per square inch
NIIN 00-086-7394
NSN 5306-00-086-7394
Nominal Length 4 7/32
Surface Treatment Cadmium and chromate
Thread Class 3a
Thread Diameter 0.438
Thread Direction Right-hand
Thread Length 0.556 inches minimum
Thread Qty 20
Thread Qty Per Inch (tpi) 20
Thread Series Designator UNF
Thread Size 7/16-20
Weight .005 lb
Width Between Flats 0.615 inches minimum and 0.627 inches maximum

Cross-reference

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Catalog data updated 2026-07-05. Report a data error