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AN3H20A

Aeronautical Standard Machine Bolt

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Description

Airframe Bolt, Drilled Head

Specifications

Country of Origin USA
Fastener Length 2.031
Features Provided Finished head
Grip Length 1.625
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Height 0.109 inches minimum and 0.141 inches maximum
Head Style Hexagon Head
Material Steel
Material Specification Mil-b-6812 mil spec all material responses
Min. Tensile Strength (psi) 125000 pounds per square inch
NIIN 00-182-2009
NSN 5306-00-182-2009
Thread Class 3a
Thread Diameter 0.190
Thread Length 0.406 inches minimum
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series Designator UNF
Thread Size 10
Weight 0.02 lb
Width Between Flats 0.365 inches minimum and 0.377 inches maximum

Cross-reference

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