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 |
|---|---|
| 06950 | ALCOA GLOBAL FASTENERS INC. DBA ALCO |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CSYM | SURFACE FINISH | 32.0 MICROINCHES THREADS |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| FEAT | SPECIAL FEATURES | TOP OF HEAD IS FLAT |
| CSYM | SURFACE FINISH | 32.0 MICROINCHES GRIP |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| AASK | HEAD STYLE | FILLISTER COUNTERSUNK |
| AAJD | THREAD CLASS | 3A |
| AASA | THREAD LENGTH | 0.658 INCHES MINIMUM AND 0.708 INCHES MAXIMUM |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUR | GRIP DIAMETER | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM |
| AASL | HEAD DIAMETER | 0.605 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| AASB | FASTENER LENGTH | 1.856 INCHES MINIMUM AND 1.886 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.437 INCHES |
| ANEE | GRIP LENGTH | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.112 INCHES MINIMUM AND 0.125 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP H11 OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| ABQZ | INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |