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 |
|---|---|---|
| AATX | SHOULDER LENGTH | 0.500 INCHES MAXIMUM ALL SHOULDERS |
| AATN | SHOULDER DIAMETER | 0.375 INCHES NOMINAL ALL SHOULDERS |
| FEAT | SPECIAL FEATURES | HEAD CHAMFER IS30 - 45 DEGREES,TIP CHAMFER IS 45 DEGREES,BELONGS TO FIXTURE,AIRCRAFT,MAINTENANCE GROUP |
| AASL | HEAD DIAMETER | 0.5625 INCHES MAXIMUM |
| AASK | HEAD STYLE | KNURLED NO. 1 |
| CWYB | SHOULDER SHAPE | ROUND ALL SHOULDERS |
| MATT | MATERIAL | STEEL COMP 302 OVERALL |
| AASA | THREAD LENGTH | 0.500 INCHES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 70000 POUNDS PER SQUARE INCH |
| AASB | FASTENER LENGTH | 1.000 INCHES MAXIMUM |
| ZZZK | SPECIFICATION/STANDARD DATA | 80204ANSE/ASMEB18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| CMLP | THREAD QUANTITY PER INCH | 18 |
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQFM | HARDNESS RATING | 55.0 ROCKWELL B NOMINAL OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 18-8STAINLESSSTEEL MFR REF 1ST MATERIAL RESPONSE OVERALL |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| AASU | HEAD HEIGHT | 0.250 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.3125 INCHES |