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MS9566-05

12 Point Machine Bolt

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Description

Fastener Length: 7/16", Hole Diameter: 1/16", Thread: 1/4-28, Thread Length: 23/64"

Specifications

Country of Origin USA
Extended Washer Diameter 0.438
Extended Washer Thickness 0.060 inches minimum
Fastener Length 0.438
Features Provided Finished head
Grip Length 0.079 inches minimum and 0.099 inches maximum
Hardness Rating 24.0 rockwell c minimum and 35.0 rockwell c maximum
Head Height 0.300
Head Style Double hexagon w/hole
Hole Configuration Style Double hexagon longitudinal hole
Hole Diameter 0.070
Hole Quantity 4
Hole Type Drilled
Length 7/16
Material Iron
Material Specification Ams 5731 assn std single material response
Min. Tensile Strength (psi) 130000 pounds per square inch
Minimum Yield Strength 85000 pounds per square inch
Surface Finish 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.339 inches minimum and 0.359 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNJF
Thread Size 1/4
Weight .005 lb
Width Between Flats 0.312

Cross-reference

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Catalog data updated 2026-07-05. Report a data error