NATO Stock Number
5306-00-012-6808
Sold in multiples of
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.250 inches
Fastener Length
3.750 inches
Head Style
Button
Head Diameter
Between 1.032 inches and 1.094 inches
Head Height
Between 0.250 inches and 0.270 inches
Neck Length
Between 0.250 inches and 0.281 inches
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
13
Min. Tensile Strength (psi)
55000 pounds per square inch
Hardness Rating
95.0 rockwell b
Minimum Yield Strength
40000 pounds per square inch
Neck Width
Between 0.492 inches and 0.515 inches
Material
Steel
Material Specification
Gm 255m, general motors corporation mfr ref single material response
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
4252-m, fscm 24617 mfr ref all treatment responses
Thread Series Designator
Unc