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Airframe Bolt AN4-7A

Description:

Length: 29/32\", grip: 7/16\", thread: 1/4-28, cadmium plated steel, undrilled shank

AN4-7A Details

National Stock Number (NSN) 5306-00-515-8064
Alternate Part Number N/A
Federal Supply Class (FSC) 5306
Unit of Measure (UOM) 25 /Ea.
Thread Class 3a
Thread Direction Right-hand
Thread Length 0.468 inches
Fastener Length 0.906 inches
Head Style Hexagon
Head Height Between 0.140 inches and 0.172 inches
Width Between Flats Between 0.428 inches and 0.440 inches
Thread Diameter 0.250 inches
Grip Length 0.438 inches
Features Provided Finished head
Thready Qty Per Inch (tpi) 28
Min. Tensile Strength (psi) 125000 pounds per square inch
Hardness Rating 26.0 rockwell c and 32.0 rockwell c
Material Steel comp 4037 or steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 or steel comp 4140
Material Specification Mil-b-6812 military specification all material responses
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416, ty2 cl 3 federal specification single treatment response
Thread Series Designator Unf

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