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AN6H41A

Aeronautical Standard Machine Bolt

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Description

Airframe Bolt, Drilled Head

Specifications

Country of Origin USA
Fastener Length 4.203
Features Provided Finished head
Grip Length 3.562
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Height 0.203 inches minimum and 0.235 inches maximum
Head Style Hexagon Head
Hole Configuration Style Hexagon flats
Hole Diameter 0.070
Hole Quantity 1
Hole Type Drilled
Length 4 3/16
Material Steel
Material Specification Mil-s-5626 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-6050 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6758 mil spec 5th material response or ams 6300 assn std 6th material response
Min. Tensile Strength (psi) 125000 pounds per square inch
NIIN 00-063-5025
NSN 5306-00-063-5025
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 ty 2 cl 3 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.375
Thread Direction Right-hand
Thread Length 0.641 inches minimum
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series Designator UNF
Thread Size 3/8
Weight 0.144 lb
Width Between Flats 0.553 inches minimum and 0.565 inches maximum

Cross-reference

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