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MS18066-14

Military Standard Machine Screw

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Description

Fastener Length: 1/4", Thread: 1/4-28, Head Width: 1/8", Thread Length: 1/4"

Specifications

Fastener Length 0.240 inches minimum and 0.260 inches maximum
Head Style Headless (setscrew)
Internal Drive Style Hexagon
Length 1/4
Locking Feature Patch threads or pellet threads or strip threads
Material CRES
Material Specification 66 fed std all material responses
Nondefinitive Specification/Std Data 1 type and 1 style
Point Style Flat
Surface Treatment Passivate
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.240 inches minimum and 0.260 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4
Width Across Flats 0.125 inches minimum and 0.127 inches maximum

Other sizes

Parts that share this base number, ordered by size. Always verify the full specification before substituting.

Cross-reference

No interchangeable or dimensionally similar parts are on record for MS18066-14. Try the cross-reference lookup to search by a different part number.

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