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National Stock Number:
5305-00-515-2829
Federal Supply Class:
5305
National Item Identification Number:
005152829
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.
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Manufacturer Information:
| 5152829 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.140 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.343 INCHES MINIMUM AND 0.353 INCHES MAXIMUM | | FIRST DIAMETER FROM HEAD | 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM | | HARDNESS RATING | 43.0 ROCKWELL D MINIMUM AND 47.0 ROCKWELL D MAXIMUM OVERALL | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1035 OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | POINT DIAMETER | 0.198 INCHES MINIMUM AND 0.200 INCHES MAXIMUM | | POINT LENGTH | 0.203 INCHES MINIMUM AND 0.213 INCHES MAXIMUM | | POINT STYLE | DOG | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.109 INCHES NOMINAL | | THREAD QUANTITY PER INCH | 28 | | THREAD SERIES DESIGNATOR | UNF |
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