5305-01-373-0402, SCREW,TAPPING

National Stock Number:
5305-01-373-0402

Federal Supply Class:
5305

National Item Identification Number:
013730402

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.

Manufacturer Information:

FF-S-107	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS51869-C14	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

EXTENDED WASHER THICKNESS	0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.314 INCHES MINIMUM AND 0.414 INCHES MAXIMUM
FASTENER LENGTH	0.345 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT	0.324 INCHES MINIMUM AND 0.351 INCHES MAXIMUM
HEAD STYLE	HEXAGON EXTENDED WASHER
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL	STEEL COMP 410 OVERALL
NONMACHINE NOMINAL THREAD DIAMETER	0.190 INCHES
NONMACHINE THREAD STYLE	BLUNT (SF) OR BLUNT (TYPE SW) OR BLUNT (TYPE TT)
WIDTH BETWEEN FLATS	0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL

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