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National Stock Number:
5305-01-547-5273
Federal Supply Class:
5305
National Item Identification Number:
015475273
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:
| 03281-01 | 14153 | DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA | | 92240A553 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW HEX HEAD, HEX HEAD CAP SCREW | | SPECIAL FEATURES | FULLY THREADED 18-8 STAINLESS STEEL HEX HEAD CAP SCREW. I8-8 STAINLESS STEEL OFFERS EXCELLENT CORROSION RESISTANCE. IT MAY BE MILDLY MAGNETIC ROCKWELL HARDNESS IS A MINIMUM OF B70. MINIMU TENSILE STRENGTH IS 70,000PSI. SCREWS HAVE A CLASS 2A THREAD FIT. LENGTH IS MEASURED FROM UNDER HEAD. 0.250- 20 | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 2.750 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 |
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