5305-01-026-4359, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-026-4359

Federal Supply Class:
5305

National Item Identification Number:
010264359

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:

6232SS0256	06540	NEW HAVEN MFG CORP AMATOM ELECTRONIC HARDWARE DIV
6232SS0256	1YGB8	CAREY MANUFACTURING CO, INC
GS553D02-4	29512	BATES MFG CO

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.056 INCHES MINIMUM AND 0.066 INCHES MAXIMUM
HEAD DIAMETER	0.124 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
HEAD HEIGHT	0.053 INCHES MINIMUM AND 0.062 INCHES MAXIMUM
HEAD STYLE	FILLISTER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.086 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.129 INCHES MINIMUM AND 0.181 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	56

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