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MS16998-28L

Military Standard Screw

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Description

Fastener Length: 5/8", Thread: 10-32, Head Width: 5/32", Thread Length: 5/8"

Specifications

Fastener Length 0.594 inches minimum and 0.625 inches maximum
Hardness Rating 38.0 rockwell c minimum and 45.0 rockwell c maximum
Head Diameter 0.303 inches minimum and 0.312 inches maximum
Head Height 0.185 inches minimum and 0.190 inches maximum
Head Style Flat chamfer
Internal Drive Style Hexagon
Length 5/8
Locking Feature Patch threads or pellet threads or strip threads
Material Steel
Min. Tensile Strength (psi) 160000 pounds per square inch
Nondefinitive Specification/Std Data 6 type
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416 type 2 class 3 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.190
Thread Direction Right-hand
Thread Length 0.532 inches minimum and 0.625 inches maximum
Thread Qty 32
Thread Qty Per Inch (tpi) 32
Thread Series Designator UNF
Thread Size 10
Width Across Flats 0.156 inches minimum and 0.159 inches maximum

Cross-reference

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