Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , SOCKET HEAD
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER. THE HEAD HAS AN INTERNAL SOCKET OR MULTIPLE SPLINE FOR USE WITH AN INSERTED DRIVER. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES ITEMS WITH BEVEL (CONICAL) HEADS. SEE BOLT, INTERNAL WRENCHING. EXCLUDES SCREW, SHOULDER; AND SCREW, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 16941 | LONG-LOK FASTENERS CORPORATION |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AAUM | LOCKING FEATURE | PATCH THREADS |
| AASA | THREAD LENGTH | 0.400 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| AASK | HEAD STYLE | PAN NO. 2 |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| ABQZ | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASL | HEAD DIAMETER | 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.500 INCHES NOMINAL |
| MATT | MATERIAL | STEEL OVERALL |
| AASU | HEAD HEIGHT | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AAJD | THREAD CLASS | 2A |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 20 |