Part Number
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN.) (1.5 MM) OR LARGER. IT HAS A ROUND UNTHREADED NECK OR SHANK ALL OR PART OF WHICH IS OF GREATER DIAMETER THAN THE THREADED PORTION. THE HEAD IS DESIGNED TO BE DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH IN SIZES BELOW NO. 10 (0.190 IN.) (5 MM) NOMINAL DIAMETER. NO. 10 (0.190 IN.) (5 MM) AND LARGER SIZES MUST BE DESIGNED FOR ANY TYPE OF INSERTED DRIVER, BUT MAY ALSO PROVIDE FOR EXTERNAL WRENCHING OF THE HEAD. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. FOR ITEMS WHICH ARE BOTH SHOULDERED AND HAVE AN EXTERNALLY RELIEVED BODY, USE SCREW, EXTERNALLY RELIEVED BODY. FOR ITEMS WITH A NO. 10 (0.190 IN.) (5 MM) OR LARGER THREAD DIAMETER WITHOUT AN INSERTED DRIVER HEAD, USE BOLT, SHOULDER. EXCLUDES 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 |
|---|---|---|
| CQFM | HARDNESS RATING | 33.0 ROCKWELL C MINIMUM OVERALL |
| AATC | EXTENDED WASHER DIAMETER | 1.328 INCHES NOMINAL |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | FLANGE HEX HEAD CAP SCREW |
| SFTT | SURFACE TREATMENT | OIL OVERALL AND PHOSPHATE OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.625 INCHES |
| AATB | WIDTH BETWEEN FLATS | 0.938 INCHES NOMINAL |
| AASU | HEAD HEIGHT | 0.625 INCHES NOMINAL |
| AASA | THREAD LENGTH | 2.500 INCHES NOMINAL |
| AASB | FASTENER LENGTH | 2.500 INCHES NOMINAL |
| ABQZ | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CWYB | SHOULDER SHAPE | ROUND OVERALL |
| MATT | MATERIAL | STEEL OVERALL |
| AATN | SHOULDER DIAMETER | 1.328 INCHES NOMINAL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| HUES | COLOR | BLACK OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 11 |
| CQBC | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
| AASK | HEAD STYLE | HEXAGON EXTENDED WASHER |