NATO Stock Number
5305-00-285-5284
Sold in multiples of
1 HD
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.156 inches
Fastener Length
Between 0.219 inches and 0.250 inches
Head Style
Round
Head Diameter
Between 0.334 inches and 0.359 inches
Head Height
Between 0.123 inches and 0.137 inches
Washer Quantity
1
Internal Drive Style
Cross recess type 1
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
45.0 rockwell c primary washer and 53.0 rockwell c primary washer
Primary Washer Outside Diameter
Between 0.359 inches and 0.373 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.047 inches
Material
Steel comp 1010 fastener or steel comp 1011 fastener or steel comp 1013 fastener or steel comp 1015 fastener or steel comp 1016 fastener or steel comp 1017 fastener or steel comp 1018 fastener or steel comp 1019 fastener or steel comp 1020 fastener
Material Specification
Sae assn standard all material responses fastener
Material Specification
Sae assn standard single material response primary washer
Surface Treatment
Cadmium and chromate or zinc and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification 1st treatment response or qq-z-325, type 2, class 3 federal specification 2nd treatment response
Thread Series Designator
Unf
