5305-01-089-8679, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-089-8679

Federal Supply Class:
5305

National Item Identification Number:
010898679

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:

D791512-14	17446	HUCK INTERNATIONAL, INC
P81-440-5	04729	UNICORP.

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.502 INCHES MINIMUM AND 0.542 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.732 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.076 INCHES MINIMUM AND 0.079 INCHES MAXIMUM
HEAD DIAMETER	0.1670 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
HEAD HEIGHT	0.033 INCHES MINIMUM AND 0.049 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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