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AN6-51A Army-Navy Standard Machine Bolt

Length: 5-13/64", grip: 4-9/16", thread: 3/8-24, cadmium plated steel, undrilled shank, shear

Manufacturer certifications are shipped with your order FREE of charge

Add to Cart Available Quantity: 30

AN6-51A Price: $19.95 /Each

AN6-51A Spec.

Fastener Length:
5.203 inches
Features Provided:
Finished head
Grip Length:
4.562 inches
Hardness Rating:
26.0 rockwell c and 32.0 rockwell c
Head Height:
Between 0.203 inches and 0.235 inches
Head Style:
Steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037
Min. Tensile Strength (psi):
125000 pounds per square inch
Thread Diameter:
0.375 inches
Material Specification:
Mil-s-5626 military specification 1st material response or mil-s-6049 military specification 2nd material response or mil-s-6050 military specification 3rd material response or mil-s-6098 military specification 4th material response or mil-s-4130 military specification 5th material response or ams 6300 assn standard 6th material response
Width Between Flats:
Between 0.553 inches and 0.565 inches
Surface Treatment Specification:
Qq-p-416 type 2 cl 3 federal specification all treatment responses
Surface Treatment:
Cadmium and chromate
Thread Class:
Thread Direction:
Thread Length:
0.641 inches
Thready Qty Per Inch (tpi):
Thread Series Designator:
Unf (fine thread)

Additional Information AN6 51A

Found In: AN Series Bolts
Gov. Issued Name: Bolt, Machine
NSN: 5306-00-721-4426
FSC: Bolts / 5306
Associated NSN(s):
  • 5306-00-734-6722
Schedule B: 7318.15.2000, Bolts and bolts and their nuts or washers exported in the same shipment
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
PDF: AN6-51A Spec.pdf