|
|
|
National Stock Number:
5305-01-547-5481
Federal Supply Class:
5305
National Item Identification Number:
015475481
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.
|
Manufacturer Information:
| 91286A337 | 39428 | MCMASTER-CARR SUPPLY CO |
|
Techincal Specification:
| FASTENER LENGTH | 3.000 INCHES NOMINAL | | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, HEX HEAD, HEX HEAD CAP SCREW | | SPECIAL FEATURES | HEX HEAD CAP SCREW GRADE 8 ULTRA CORROSION-RESISTANT COATED ALLOY STEEL. THESE SCREWS HAVE A CLEAR SILVER,WATER BASED INORGANIC COATING, ALSO KNOWN AS ARMOR COAT, FOR EXCELLENT CORROSION RESISTANCE. EFFECTIVE REPLACEMENTS FOR STAINLESS STEEL CAP SCREWS. THE COATING HAS A SALT SPRAY RESISTANCE OF 1000 HR PER ASTM B117. COATING DOES NOT AFFECT THE FUNCTION OF THE THREAD. SCREWS ARE MADE OF HIGHSTRENGTH ALLOY STEEL AND MEET SAE J429. ROCKWELL HARDNESS IS C33-C39. MIN TENSILE STRENGTH IS 150,000PSI. ALL HAVE CLASS 2A THREAD FIT AND ARE GRADE MARKED ON TOP OF THE HEAD, 6 LINES INDICATE GRADE 8. LENGTH IS MEASURED FROM UNDER HEAD. 0.50 IN - 13. | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 2A | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 13 |
|
|