Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , MACHINE
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO 0 (0.060 IN./1.5 MM) OR LARGER, DESIGNED TO BE HELD OR DRIVEN WITH EITHER A WRENCH OR AN INSERTED DRIVER OR BOTH (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), IN SIZES BELOW NO. 10 (0.190 IN./5 MM). NO. 10 AND LARGER SIZES MUST HAVE A HEAD DESIGNED FOR ANY TYPE INSERTED DRIVER (EXCLUDING INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE TYPES), BUT MAY ALSO BE DESIGNED FOR EXTERNAL WRENCHING. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; AND SCREW, ASSEMBLED WASHER. SEE ALSO, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; AND SCREW, CAP SOCKET HEAD.
CAGE Information
| Code |
Company |
| 16941 |
LONG-LOK FASTENERS CORPORATION |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| AHYM |
NOMINAL THREAD DIAMETER |
0.190 INCHES |
| AATD |
EXTENDED WASHER THICKNESS |
0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| AATC |
EXTENDED WASHER DIAMETER |
0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM |
| AASA |
THREAD LENGTH |
0.297 INCHES MINIMUM AND 0.453 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| AAJD |
THREAD CLASS |
3A |
| ABQZ |
INTERNAL DRIVE STYLE |
CROSS RECESS TYPE 1 |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CQBC |
MINIMUM TENSILE STRENGTH |
62000 POUNDS PER SQUARE INCH |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AASU |
HEAD HEIGHT |
0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
ROUND EXTENDED WASHER |
| AASB |
FASTENER LENGTH |
0.531 INCHES MINIMUM AND 0.594 INCHES MAXIMUM |
| CYAU |
SCREW MATERIAL |
ALUMINUM ALLOY 2024 |
| CYBA |
SCREW SURFACE TREATMENT |
ANODIZE |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| FEAT |
SPECIAL FEATURES |
A LONG-LOK NYLON LOCKING STRIP IS ADDED TO THE SCREW; THE HEAD IS MARKED WITH A MINIMUM OF L DOTS IN A CIRCULAR PATTERN |
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