Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , INTERNAL WRENCHING
Definition:
AN EXTERNALLY THREADED FASTENER WHOSE THREADED PORTION IS OF ONE NOMINAL DIAMETER, NO. 10 (0.190 IN.) (5 MM) OR LARGER. IT IS DESIGNED WITH AN INTERNAL SOCKET OR INTERNAL MULTIPLE SPLINE FOR USE WITH AN INTERNAL DRIVER. THE HEAD IS BEVELED (CONICAL) OR CYLINDRICAL IN SHAPE. ITEMS WITH CYLINDRICAL SHAPED HEADS MUST HAVE AN EXTERNALLY RELIEVED BODY. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. SEE ALSO SCREW, CAP, SOCKET HEAD. EXCLUDES SETSCREW; SCREW, SHOULDER; BOLT, SHOULDER; SCREW, EXTERNALLY RELIEVED BODY; BOLT, EXTERNALLY RELIEVED BODY; AND SCREW, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 80205 | NATIONAL AEROSPACE STANDARDS COMMITT |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASU | HEAD HEIGHT | 0.226 INCHES NOMINAL |
| AASA | THREAD LENGTH | 0.475 INCHES MINIMUM AND 0.525 INCHES MAXIMUM |
| FEAT | SPECIAL FEATURES | THREADS HAVE BEEN ROLLED AFTER HEAT TREAT |
| CQBC | MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| AAJD | THREAD CLASS | 3A |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| AASK | HEAD STYLE | BEVEL-CONICAL |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAUB | HOLE DIAMETER | 0.046 INCHES MINIMUM AND 0.051 INCHES MAXIMUM |
| THSD | THREAD SERIES DESIGNATOR | UNF |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY 2. CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| AASL | HEAD DIAMETER | 0.381 INCHES NOMINAL |
| CQFM | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| MATT | MATERIAL | STEEL COMP 6150 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 8740 OVERALL |
| AASB | FASTENER LENGTH | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM |
| ABQZ | INTERNAL DRIVE STYLE | HEXAGON |
| ASDB | WIDTH ACROSS FLATS | 0.219 INCHES MINIMUM AND 0.221 INCHES MAXIMUM |
| BQDM | HOLE TYPE | DRILLED |
| SFTT | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
| CRHC | HOLE CONFIGURATION STYLE | ROUND |
| ASXK | HOLE QUANTITY | 6 |