5306-01-057-3734, BOLT,SHOULDER

5305-01-057-3732 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-057-3734

Federal Supply Class:
5306

National Item Identification Number:
010573734

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:

1283013-103	023T7	REFA INTERNATIONAL INC.
1283013-103	98897	LOCKHEED MARTIN CORP
1833013-103	30205	MERCER PRODUCTS & MANUFACTURING COMPANY
ATT411-8S	77445	RTX CORPORATION

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.667 INCHES MINIMUM AND 1.687 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH	1.915 INCHES MINIMUM AND 1.955 INCHES MAXIMUM
HEAD HEIGHT	0.260 INCHES MINIMUM AND 0.280 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP 4140 OVERALL
MINIMUM TENSILE STRENGTH	180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.108 INCHES MINIMUM AND 0.113 INCHES MAXIMUM FIRST HOLE
SHOULDER DIAMETER	0.4992 INCHES MINIMUM AND 0.4994 INCHES MAXIMUM FIRST SHOULDER
SHOULDER LENGTH	1.295 INCHES MINIMUM AND 1.305 INCHES MAXIMUM FIRST SHOULDER
SHOULDER SHAPE	ROUND FIRST SHOULDER
WIDTH BETWEEN FLATS	0.743 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.640 INCHES MINIMUM AND 0.730 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)

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