5305-01-121-1637, SCREW,TAPPING

5305-01-121-1636 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-121-1637

Federal Supply Class:
5305

National Item Identification Number:
011211637

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	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS24629-77	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS24629-77	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	0.953 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
FEATURES PROVIDED	CASEHARDENED
HEAD DIAMETER	0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM
HEAD HEIGHT	0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL	STEEL COMP 1016 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1524 OVERALL
NONDEFINITIVE SPEC/STD DATA	2 TYPE OR 3 TYPE OR 4 TYPE OR 6 TYPE
NONMACHINE NOMINAL THREAD DIAMETER	0.250 INCHES
NONMACHINE THREAD STYLE	THRU SLOT (TYPE D) OR DOUBLE FLUTE (TYPE F) OR WIDE FLUTE (TYPE T) OR THRU SLOT (TYPE 6)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL

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