5306-00-550-1074, BOLT,MACHINE

National Stock Number:
5306-00-550-1074

Federal Supply Class:
5306

National Item Identification Number:
005501074

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Manufacturer Information:

FF-S-85C TY II STY 10P GR

81348

FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	2.750 INCHES NOMINAL
MATERIAL	STEEL OVERALL
THREAD LENGTH	1.250 INCHES MINIMUM
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 2 ASSN 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 1ST TREATMENT RESPONSE OR
	QQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR
	QQ-P-416 TY 2 CL 2 FED SPEC 2ND TREATMENT RESPONSE OR
	QQ-P-416 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
HARDNESS RATING	100.0 ROCKWELL B MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	69000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.302 INCHES MINIMUM AND
	0.323 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.725 INCHES MINIMUM AND
	0.750 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.594 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.094 INCHES NOMINAL FIRST HOLE
FEATURES PROVIDED	FINISHED HEAD
DEPARTURE FROM CITED DESIGNATOR	AS MODIFIED BY DRILLED HOLE FOR COTTER PIN
SPECIAL FEATURES	ONE HOLE IN THREADED END
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND
	2 GRADE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-85C TY II STY 10P GR

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