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National Stock Number:
5305-01-535-1851
Federal Supply Class:
5305
National Item Identification Number:
015351851
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:
| 92205A585 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| HARDNESS RATING | 70.0 ROCKWELL B NOMINAL OVERALL | | HEAD STYLE | HEXAGON | | PART NAME ASSIGNED BY CONTROLLING AGENCY | HEX HEAD CAP SCREW - SELF-SEALING 18-8 STAINLESS STEEL | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | SILICONE RUBBER O-RING UNDER THE HEAD FORMS A TIGHT SEAL AS THE SCREW IS FASTENED. THE O-RING HAS A TEMP. RANGE OF -160 DEG. F TO +500 DEG. F AND WITHSTANDS PRESSURES UP TO 6000 PSI. SCREW CAN BE REUSED WITHOUT DEGRADING THE SEAL. TO ENSURE SEALING PERFORMANCE, THE HOLE SIZE DIMENSION (0.332-0.336 IN) MUST BE ADHERED TO. 18-8 STAINLESS STEEL MAY BE MILDLY MAGNETIC. | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.250 INCHES NOMINAL |
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