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National Stock Number:
5305-00-022-0709
Federal Supply Class:
5305
National Item Identification Number:
000220709
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 220709 | 21450 | ARMY WEAPONS COMMAND ATTN AMSWE-REE-S | | 220709 | 24617 | GENERAL MOTORS CORP | | 220709 | 7X677 | GENERAL MOTORS LLC |
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Techincal Specification:
| FASTENER LENGTH | 1.093 INCHES MINIMUM AND 1.157 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | HARDNESS RATING | 96.0 ROCKWELL B MINIMUM AND 104.0 ROCKWELL B MAXIMUM OVERALL | | HEAD HEIGHT | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | LOCKING FEATURE | DISTORTIONS BEARING SURFACE OF HEAD | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1035 OVERALL | | MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH | | MINIMUM TENSILE STRENGTH | 95000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OR ZINC OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.968 INCHES MINIMUM AND 1.093 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 16 |
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