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MS20006-43

Military Standard Bolt

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Description

Fastener Length: 3-25/64", Hole Diameter: 1/32", Thread: 3/8-24, Head Width: 5/16", Thread Length: 45/64"

Specifications

Fastener Length 3.360 inches minimum and 3.390 inches maximum
Hardness Rating 34.0 rockwell c minimum and 40.0 rockwell c maximum
Head Diameter 0.639 inches minimum and 0.649 inches maximum
Head Height 0.375
Head Style Bevel-conical
Hole Configuration Style Round longitudinal hole
Hole Diameter 0.037
Hole Quantity 4
Hole Type Drilled
Internal Drive Style Hexagon
Length 3 25/64
Material Steel
Material Specification Mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response
Min. Tensile Strength (psi) 160000 pounds per square inch
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 ty 2 class 2 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.375
Thread Direction Right-hand
Thread Length 0.662 inches minimum and 0.712 inches maximum
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series Designator UNF
Thread Size 3/8
Width Across Flats 0.313 inches minimum and 0.315 inches maximum

Cross-reference

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