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NAS6606H18

Close Tolerance Bolt - Drilled Head

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Description

Close Tolerance Bolt - Drilled Head

Specifications

Country of Origin USA
Fastener Length 1.688 inches minimum and 1.718 inches maximum
Grip Diameter 0.3735 inches minimum and 0.3745 inches maximum
Grip Length 1.115 inches minimum and 1.135 inches maximum
Head Height 0.188 inches minimum and 0.203 inches maximum
Head Style Undercut hexagon
Length 1 45/64
Material Steel
NIIN 00-205-3700
NSN 5306-00-205-3700
Specification Data 81205-bacb30ne manufacturers standard
Surface Finish 32.0 microinches bearing surface of head, 32.0 microinches threads
Surface Treatment Cadmium and chromate
Surface Treatment Specification Qq-p-416,ty 2,cl 3 fed spec all treatment responses
Thread Class 3a
Thread Diameter 0.375
Thread Direction Right-hand
Thread Length 0.553 inches minimum and 0.603 inches maximum
Thread Qty 24
Thread Qty Per Inch (tpi) 24
Thread Series Designator UNF
Thread Size 3/8
Weight .005 lb
Width Between Flats 0.553 inches minimum and 0.564 inches maximum

Cross-reference

Interchangeable

Parts that share a National Stock Number or are listed as an alternate for NAS6606H18 — functionally equivalent.

  • NAS6606-18 Same NSN 24.00-24 · 1.70 in · Dished hexagon · Steel

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