Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CLOSE TOLERANCE
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 |
| 80205 |
NATIONAL AEROSPACE STANDARDS COMMITT |
Characteristics (Decoded)
| MRC |
Requirements Statement |
Clear Text Reply |
| CSYM |
SURFACE FINISH |
0.8 MICROMETERS THREADS |
| AASK |
HEAD STYLE |
PAN NO. 2 |
| AASA |
THREAD LENGTH |
7.0 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP E4340 OVERALL OR STEEL COMP 8740 OVERALL |
| CQWR |
EXTERNAL THREAD TOLERANCE CLASS |
4H6H |
| AAUR |
GRIP DIAMETER |
3.965 MILLIMETERS MINIMUM AND 3.990 MILLIMETERS MAXIMUM |
| AASB |
FASTENER LENGTH |
13.2 MILLIMETERS MINIMUM AND 13.8 MILLIMETERS MAXIMUM |
| AHYM |
NOMINAL THREAD DIAMETER |
4.0 MILLIMETERS |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASU |
HEAD HEIGHT |
2.2 MILLIMETERS MINIMUM AND 2.4 MILLIMETERS MAXIMUM |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| AASL |
HEAD DIAMETER |
7.7 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM |
| ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NA0035 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| CQQR |
THREAD PITCH IN MILLIMETERS |
0.7 |
| THSD |
THREAD SERIES DESIGNATOR |
MJ |
| ANEE |
GRIP LENGTH |
5.8 MILLIMETERS MINIMUM AND 6.2 MILLIMETERS MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CSYM |
SURFACE FINISH |
0.8 MICROMETERS BEARING SURFACE OF HEAD |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| ABQZ |
INTERNAL DRIVE STYLE |
OFFSET CRUCIFORM (TORQUE SET) |
| CSYM |
SURFACE FINISH |
0.8 MICROMETERS GRIP |
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