5305-00-177-5732, SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-00-177-5732

Federal Supply Class:
5305

National Item Identification Number:
001775732

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.

Manufacturer Information:

FFS85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS51106-311	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.569 INCHES MINIMUM AND 1.651 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM
HARDNESS RATING	25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND 10P STYLE AND 5 GRADE
SHANK UNTHREADED HOLE DIAMETER	0.074 INCHES MINIMUM AND 0.082 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.938 INCHES MINIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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