NATO Stock Number
5305-00-042-0991
Sold in multiples of
1 HD
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.369 inches and 0.469 inches
Fastener Length
Between 0.469 inches and 0.500 inches
Head Style
Round
Head Diameter
Between 0.443 inches and 0.472 inches
Head Height
Between 0.160 inches and 0.175 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Primary Washer Outside Diameter
Between 0.460 inches and 0.475 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.023 inches and 0.028 inches
Material
Steel comp 1050 primary washer
Material
Steel fastener
Material Specification
66, 1010-1020 federal standard single material response fastener
Material Specification
Sae assn standard single material response primary washer
Surface Treatment
Cadmium fastener
Surface Treatment
Zinc primary washer
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification single treatment response fastener
Surface Treatment Specification
Qq-z-325, type 1, cl 3 federal specification single treatment response primary washer
Thread Series Designator
Unc
