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AN7-36A

Aeronautical Standard Machine Bolt

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Description

Airframe Bolt

Specifications

Country of Origin USA
Drilling Undrilled Head
Fastener Length 3.844
Features Provided Finished head
Grip 3 3/16 in
Grip Length 3 3/16, 3.188
Hardness Rating 26.0 rockwell c and 32.0 rockwell c
Head Height Between 0.234 inches and 0.266 inches
Head Style Hexagon Head
Head Type Hexagon
Industry Standards/Certification AN7
Length 3 27/32 in
Material Steel
Material Specification Mil-b-6812 military specification all material responses
Min. Tensile Strength (psi) 125000 pounds per square inch
NIIN 00-579-0165
NSN 5306-00-579-0165
Nominal Length 3 27/32
Surface Treatment Cadmium and chromate
Surface Treatment Specification Class 3 federal specification single treatment response ty2 qq-p-416
Thread Class 3a
Thread Diameter 0.438
Thread Direction Right-hand
Thread Length 0.656
Thread Qty 20
Thread Qty Per Inch (tpi) 20
Thread Series UNF
Thread Series Designator Unf (fine thread)
Thread Size 7/16-20
Weight 0.183 lb
Width Between Flats Between 0.615 inches and 0.627 inches

Cross-reference

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