Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , HEXAGON HEAD
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 39428 | MCMASTER-CARR SUPPLY COMPANY |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| CQFM | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM OVERALL AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | 3.000 INCHES NOMINAL |
| FEAT | 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. |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| AGAV | END ITEM IDENTIFICATION | 5895-01-545-4956 TERMINAL MOUNTING KIT |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, HEX HEAD, HEX HEAD CAP SCREW |
| CMLP | THREAD QUANTITY PER INCH | 13 |