Hexagon Head Cap Screw
Part NameHEXAGON HEAD CAP SCREW
Federal Supply ClassScrews
National Stock Number5305-00-164-7240
Item Name Code18257
THREAD LENGTH0.262 INCHES MINIMUM
FASTENER LENGTH0.312 INCHES NOMINAL
MATERIALSTEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HEAD HEIGHT0.049 INCHES MINIMUM AND
- 0.060 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.181 INCHES MINIMUM AND
- 0.187 INCHES MAXIMUM
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
Items subject to the Export Administration Regulations (EAR) in parts 773-74 of Title 15, Code of Federal Regulations (CFR) (CCLI or EAR99) and determined by the DoD to present a low risk when released out of DoD control. No DEMIL, MUT or end use certificate is required. May require an export license from DOC.
Does not have a nuclear hardened feature or other critical feature such as tolerance, fit restriction or application.
Hazardous Material CodeN
There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
Precious Metals Code (PMIC)A
Item does not contain Precious Metal.
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