NATO Stock Number
5306-00-769-7448
Sold in multiples of
50 EA
DEMIL
NO
Thread Direction
Right-hand
Thread Length
Between 0.770 inches and 0.776 inches
Fastener Length
Between 1.240 inches and 1.260 inches
Head Style
Hexagon
Head Height
Between 0.271 inches and 0.291 inches
Width Between Flats
Between 0.552 inches and 0.572 inches
Washer Quantity
2
Thread Diameter
0.500 inches
Nonstandard Thread Pitch Diameter
+0.3299/+0.3344 inches
Thready Qty Per Inch (tpi)
20
Secondary Washer Relationship To Primary Washer
Not identical
Secondary Washer Style
Flat
Primary Washer Outside Diameter
Between 0.646 inches and 0.666 inches
Secondary Washer Outside Diameter
Between 0.997 inches and 1.103 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
Between 0.083 inches and 0.103 inches
Secondary Washer Material Thickness
Between 0.083 inches and 0.103 inches
Material
Steel
Surface Treatment
Cadmium or zinc
Thread Series Designator
Unf
