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NAS1635-4-10

Screw

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Description

Fastener Length: 5/8", Thread: 1/4-28, Thread Length: 5/8

Specifications

Fastener Length 0.595 inches minimum and 0.625 inches 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
Length 5/8
Material CRES
Screw Material Steel corrosion resisting
Screw Surface Treatment Passivate
Screw Surface Treatment Specification Qq-p-35 fed spec single treatment response
Specification Data 80205-nas1635 professional/industrial association standard
Thread Class 2a
Thread Diameter 0.250
Thread Direction Right-hand
Thread Length 0.524 inches minimum and 0.625 inches maximum
Thread Qty 28
Thread Qty Per Inch (tpi) 28
Thread Series Designator UNF
Thread Size 1/4

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 NAS1635-4-10. Try the cross-reference lookup to search by a different part number.

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