5305-00-550-3756, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-550-3756

Federal Supply Class:
5305

National Item Identification Number:
005503756

Description:
SCREW,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

111071

99657

MAROTTA CONTROLS INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.050 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.040 INCHES NOMINAL
HEAD DIAMETER	0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
HEAD HEIGHT	0.081 INCHES MINIMUM AND 0.088 INCHES MAXIMUM
HEAD STYLE	FILLISTER
INTERNAL DRIVE STYLE	SLOT
MATERIAL
NOMINAL THREAD DIAMETER	0.125 INCHES
SECOND DIAMETER FROM HEAD	0.121 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
THREAD CLASS	2A
THREAD LENGTH	0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNC

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