5305-01-145-4003, SCREW,TAPPING

National Stock Number:
5305-01-145-4003

Federal Supply Class:
5305

National Item Identification Number:
011454003

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:

1723180	45152	OSHKOSH CORP
FF-S-107	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51871-6	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	0.250 INCHES
FASTENER LENGTH	1.200 INCHES MINIMUM AND
	1.250 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,CL 2 FED 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	0.202 INCHES MINIMUM AND
	0.240 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND
	0.375 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.480 INCHES MINIMUM AND
	0.520 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.030 INCHES MINIMUM AND
	0.050 INCHES MAXIMUM
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
FEATURES PROVIDED	FINISHED HEAD
NONDEFINITIVE SPEC/STD DATA	TT 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	MS51871-6

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