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AN4H35A

Aeronautical Standard Bolt

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Description

Fastener Length: 3-5/8", Hole Diameter: 1/32", Thread: 1/4-28, Thread Length: 7/16"

Specifications

Fastener Length 3.656
Features Provided Finished head
Grip Length 3.188
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Height 0.140 inches minimum and 0.172 inches maximum
Head Style Hexagon Head
Hole Configuration Style Hexagon flats
Hole Diameter 0.046
Hole Quantity 1
Hole Type Drilled
Length 3 5/8
Material Steel
Material Specification Mil-b-6812 mil spec all material responses
Min. Tensile Strength (psi) 125000 pounds per square inch
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416,type 2,cl 3 fed spec all treatment responses
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.468 inches minimum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4
Width Between Flats 0.428 inches minimum and 0.440 inches maximum

Cross-reference

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