5305-01-420-7625, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-420-7625

Federal Supply Class:
5305

National Item Identification Number:
014207625

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:

6176-SS-0440-7	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6176-SS-0440-7	1YGB8	CAREY MANUFACTURING CO, INC
722-143-002	26055	PARKER-HANNIFIN CORPORATION
6176-SS-0440-7	26344	NEW HAVEN MFG CORP
722-143-002	59211	PARKER-HANNIFIN CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.562 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.859 INCHES MINIMUM AND 0.891 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM
HEAD DIAMETER	0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
HEAD HEIGHT	0.188 INCHES NOMINAL
HEAD STYLE	KNURLED NO. 2
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A581-75 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 203EZ OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303SE OR STEEL COMP 416 OR STEEL COMP 416 PLUS X OR STEEL COMP 416SE OR STEEL COMP 430F OR STEEL COMP 430FSE OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
POINT LENGTH	0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
POINT STYLE	CONE
POINT CHAMFER ANGLE	85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
POINT DIAMETER	0.062 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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