5306-00-639-3017, BOLT,SHOULDER

National Stock Number:
5306-00-639-3017

Federal Supply Class:
5306

National Item Identification Number:
006393017

Description:
BOLT,SHOULDER

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.

Manufacturer Information:

266890

77445

RTX CORPORATION

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
NONSTANDARD THREAD PITCH DIAMETER	0.2213 TO 0.2238 INCHES
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.287 INCHES MINIMUM
FASTENER LENGTH	1.780 INCHES MINIMUM AND
	1.800 INCHES MAXIMUM
MATERIAL	STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT	SILVER OVERALL
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND
	38.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLE	HEXAGON
HEAD HEIGHT	0.110 INCHES MINIMUM AND
	0.130 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.493 INCHES MINIMUM AND
	0.502 INCHES MAXIMUM
SHOULDER SHAPE	ROUND FIRST SHOULDER
SHOULDER DIAMETER	0.3715 INCHES MINIMUM AND
	0.3730 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH	1.509 INCHES MINIMUM AND
	1.513 INCHES MAXIMUM FIRST SHOULDER
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.712 INCHES MINIMUM AND
	1.720 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.062 INCHES MINIMUM AND
	0.065 INCHES MAXIMUM FIRST HOLE
PRECIOUS MATERIAL	SILVER
THE MANUFACTURERS DATA
MANUFACTURERS CODE	77445
DESIGN CONTROL REFERENCE	266890

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