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 |
|---|---|---|
| AASA | THREAD LENGTH | 22.0 MILLIMETERS MINIMUM AND 28.3 MILLIMETERS MAXIMUM |
| AASB | FASTENER LENGTH | 45.0 MILLIMETERS NOMINAL |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| MATT | MATERIAL | STEEL PROPERTY CLASS 10.9 OVERALL |
| CQBC | MINIMUM TENSILE STRENGTH | 145000 POUNDS PER SQUARE INCH |
| AATB | WIDTH BETWEEN FLATS | 13.0 MILLIMETERS NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQWR | EXTERNAL THREAD TOLERANCE CLASS | 6G |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.2 |
| AGAV | END ITEM IDENTIFICATION | MRAP; RG31-MK5E; MAXXPRO |
| AASK | HEAD STYLE | HEXAGON |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| THSD | THREAD SERIES DESIGNATOR | M |
| AASU | HEAD HEIGHT | 5.3 MILLIMETERS NOMINAL |