NATO Stock Number
5306-00-018-6493
Sold in multiples of
1 HD
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
0.625 inches
Head Style
Hexagon
Head Height
Between 0.172 inches and 0.190 inches
Width Between Flats
Between 0.428 inches and 0.437 inches
Washer Quantity
1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Primary Washer Outside Diameter
Between 0.462 inches and 0.474 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
0.025 inches
Material
Steel comp 1050 or steel comp 1566
Material Specification
Sae assn standard all material responses
Surface Treatment
Cadmium or zinc
Thread Series Designator
Unc