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MS27039-4-48

Military Standard Screw

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Description

Fastener Length: 3-", Thread: 1/4-28, Thread Length: 1/2"

Specifications

Fastener Length 3.031
Hardness Rating 26.0 rockwell c minimum and 32.0 rockwell c maximum
Head Diameter 0.473 inches minimum and 0.492 inches maximum
Head Height 0.162 inches minimum and 0.175 inches maximum
Head Style Pan Head
Internal Drive Style Cross recess type 1
Material Steel
Min. Tensile Strength (psi) 125000 pounds per square inch
Screw Material Steel
Screw Surface Treatment Cadmium and chromate
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.531
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4

Cross-reference

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