5305-01-078-5072, SCREW,TAPPING

National Stock Number:
5305-01-078-5072

Federal Supply Class:
5305

National Item Identification Number:
010785072

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:

4701271-4	088A2	C SYSTEMS LLC DBA CRAIG SYSTEMS DBA EASTERN TECHNOLOGIES
FF-S-107	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51871-15	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

NONMACHINE THREAD STYLE	BLUNT (TYPE TT)
NONMACHINE NOMINAL THREAD DIAMETER	0.375 INCHES
FASTENER LENGTH	0.950 INCHES MINIMUM AND
	1.000 INCHES MAXIMUM
MATERIAL	STEEL COMP 4037 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OR
	MIL-C-81562 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND
	38.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
HEAD STYLE	HEXAGON EXTENDED WASHER
HEAD HEIGHT	0.307 INCHES MINIMUM AND
	0.358 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.551 INCHES MINIMUM AND
	0.562 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.720 INCHES MINIMUM AND
	0.780 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.037 INCHES MINIMUM AND
	0.063 INCHES MAXIMUM
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
FEATURES PROVIDED	CASEHARDENED
NONDEFINITIVE SPEC/STD DATA	B TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-107
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS51871-15

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