Part Number
Definition:
A SCREW, MACHINE OR SCREW, CAP, SOCKET HEAD WHOSE UNTHREADED PORTION IS OF SPECIFIED GRIP LENGTH, PLATED OR UNPLATED, AND IS MACHINED TO A TOLERANCE OF ONE THOUSANDTH (0.001 IN.) (0.025 MM) OR LESS OF A SPECIFIC DIAMETER FOR ITEMS (1.000 IN.) (25 MM) OR LESS IN DIAMETER. ITEMS OVER (1.000 IN.) (25 MM) IN DIAMETER SHALL HAVE A TOLERANCE OF FIFTEEN TEN THOUSANDTHS (0.0015 IN.) (0.038 MM) OR LESS. THE NOMINAL MAJOR DIAMETER OF THE THREADS SHALL BE AT LEAST ONE THOUSANDTH (0.001 IN.) (0.025 MM) BELOW THE MINIMUM SHANK DIAMETER, BUT NOT BELOW THE MINIMUM MAJOR DIAMETER FOR APPLICABLE CLASS OF FIT, AS SHOWN IN THE SCREW THREAD STANDARDS, FED STD H28 AND/OR OTHER NATIONALLY RECOGNIZED STANDARDS. THE HEAD IS DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER. IT IS NOT DESIGNED FOR ROTATION BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS.
CAGE Information
| Code | Company |
|---|---|
| 62384 | LFC INDUSTRIES INC. |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AHYM | NOMINAL THREAD DIAMETER | 0.190 INCHES |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AASB | FASTENER LENGTH | 1.698 INCHES MINIMUM AND 1.745 INCHES MAXIMUM |
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.250 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 8740 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL |
| ANEE | GRIP LENGTH | 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQFM | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASK | HEAD STYLE | FLAT COUNTERSUNK |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CQBC | MINIMUM TENSILE STRENGTH | 95000 POUNDS PER SQUARE INCH |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| AAUR | GRIP DIAMETER | 0.1860 INCHES MINIMUM AND 0.1890 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| CMLP | THREAD QUANTITY PER INCH | 32 |
| AASL | HEAD DIAMETER | 0.270 INCHES MINIMUM AND 0.302 INCHES MAXIMUM |