5305-01-347-9777, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-347-9777

Federal Supply Class:
5305

National Item Identification Number:
013479777

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:

0118020-1	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
0118020-1	1YGB8	CAREY MANUFACTURING CO, INC
0118020-11	51506	ACCURATE SCREW MACHINE CORP
0118020-1	55910	NIWC PACIFIC SAN DIEGO NAVY ERP
0118020-1	61000	GLOBE FASTENERS INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.085 INCHES MINIMUM AND 0.100 INCHES MAXIMUM
HEAD DIAMETER	0.266 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
HEAD HEIGHT	0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 5
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM-A-581 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM-A-582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.138 INCHES
POINT CHAMFER ANGLE	85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM
POINT DIAMETER	0.085 INCHES MINIMUM AND 0.101 INCHES MAXIMUM
POINT LENGTH	0.094 INCHES NOMINAL
POINT STYLE	CONE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD LENGTH	0.203 INCHES MINIMUM AND 0.218 INCHES MAXIMUM
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	32

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