NATO Stock Number
5306-00-058-0518
Sold in multiples of
BX
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.874 inches
Fastener Length
3.500 inches
Head Style
Round
Head Diameter
Between 0.688 inches and 0.719 inches
Head Height
Between 0.156 inches and 0.176 inches
Neck Length
Between 0.156 inches and 0.187 inches
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
18
Min. Tensile Strength (psi)
55000 pounds per square inch
Hardness Rating
95.0 rockwell b
Neck Width
Between 0.307 inches and 0.324 inches
Material
Steel
Material Specification
Asme-b18 grade 1 assn standard single material response
Surface Treatment
Zinc
Surface Treatment Specification
Astm-b633 assn standard single treatment response
Thread Series Designator
Unc