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National Stock Number:
5305-00-205-3104
Federal Supply Class:
5305
National Item Identification Number:
002053104
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:
| S1021Z6-4 | 71379 | CESSNA AIRCRAFT COMPANY | | S1021Z6-4 | 7EK50 | TEXTRON AVIATION INC |
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Techincal Specification:
| FASTENER LENGTH | 0.250 INCHES NOMINAL | | FEATURES PROVIDED | CASEHARDENED | | HEAD DIAMETER | 0.303 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | HEAD HEIGHT | 0.145 INCHES MINIMUM AND 0.156 INCHES MAXIMUM | | HEAD STYLE | ROUND | | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | | MATERIAL | STEEL OVERALL | | NONMACHINE NOMINAL THREAD DIAMETER | 0.138 INCHES | | NONMACHINE THREAD STYLE | DOG TYPE (TYPE B OR C) | | SURFACE TREATMENT | CADMIUM OVERALL |
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