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MS51045-52

Military Standard Setscrew

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Description

Fastener Length: 1/2", Thread: 1/4-20, Head Width: 1/8", Thread Length: 7/16"

Specifications

Fastener Length 0.490 inches minimum and 0.510 inches maximum
Head Style Headless (setscrew)
Internal Drive Style Hexagon
Length 1/2
Material CRES
Nondefinitive Specification/Std Data 1 type and 6 style
Point Style Half dog
Surface Treatment Passivate
Surface Treatment Specification Qq-p-35 fed spec single treatment response
Thread Class 3a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.423 inches minimum and 0.451 inches maximum
Thread Qty 20
Thread Qty Per Inch (tpi) 20
Thread Series Designator UNC
Thread Size 1/4
Width Across Flats 0.125

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 MS51045-52. Try the cross-reference lookup to search by a different part number.

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