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National Stock Number:
5305-01-542-7322
Federal Supply Class:
5305
National Item Identification Number:
015427322
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:
| 91280A722 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 6H | | FASTENER LENGTH | 52.5 MILLIMETERS NOMINAL | | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 7.5 MILLIMETERS NOMINAL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | METRIC CLASS 8.8 ZINC-PLATED STEEL HEX HEAD CAP SCREW | | WIDTH BETWEEN FLATS | 18.0 MILLIMETERS NOMINAL | | SURFACE TREATMENT | ZINC OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 45.0 MILLIMETERS NOMINAL | | THREAD PITCH IN MILLIMETERS | 1.8 | | THREAD SERIES DESIGNATOR | M |
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