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National Stock Number:
5305-00-021-8309
Federal Supply Class:
5305
National Item Identification Number:
000218309
Description:
SCREW,TAPPING
Detail:
A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes SCREW, ASSEMBLED WASHER.
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Manufacturer Information:
| 218309 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S |
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Techincal Specification:
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY HEAD DIMENSIONS | | FASTENER LENGTH | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED | | HEAD DIAMETER | 0.301 INCHES MINIMUM AND 0.321 INCHES MAXIMUM | | HEAD HEIGHT | 0.081 INCHES MINIMUM AND 0.091 INCHES MAXIMUM | | HEAD STYLE | PAN NO. 2 | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL | STEEL OVERALL | | NONMACHINE NOMINAL THREAD DIAMETER | 0.164 INCHES | | NONMACHINE THREAD STYLE | GIMLET POINT (TYPE A, AB OR BA) | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-16232,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL |
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