Vintage 1986 Mil-Std Square Head 1/4-20 3/4 50 Bolts & 50 Nuts = Pack of 100
Thread Class: 2A
Thread Direction: Right-hand
Thread Length: 0.750 inches minimum
Fastener Length: 0.750 inches nominal
Head Style: Square
Head Height: 0.140 inches minimum and 0.172 inches maximum
Width Between Flats: 0.363 inches minimum and 0.375 inches maximum
Nominal Thread Diameter: 0.250 inches
Features Provided: Finished head
Thread Quantity per Inch: 20 Minimum
Tensile Strength: 48000 pounds per square inch
Material: Steel overall
Thread Series Designator: UNC
Nondefinitive Spec/STD Data: A2 type
Excellent New Old Stock condition