Part Number
Part Number:
NSN:
NIIN:
Item Name:
BOLT , MACHINE
Definition:
AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION THROUGH HOLES IN ASSEMBLED PARTS AND NORMALLY INTENDED TO BE TIGHTENED OR RELEASED BY TORQUING A NUT. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF ONE NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. THE HEAD IS NOT DESIGNED TO BE HELD OR DRIVEN WITH AN INSERTED DRIVER OR BY THE THUMB AND FINGERS. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. FOR ITEMS HAVING A GRIP LENGTH PORTION MACHINED TO A TOLERANCE OF 0.0015 INCH (0.038 MM) OR LESS, BOLT, SHEAR. SEE ALSO SCREW, CAP, HEXAGON HEAD AND SCREW, MACHINE.
CAGE Information
| Code | Company |
|---|---|
| 1FH08 | LEHIGH-ARMSTRONG INC. |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| CQBC | MINIMUM TENSILE STRENGTH | 113784 POUNDS PER SQUARE INCH |
| CBBL | FEATURES PROVIDED | FINISHED HEAD |
| MATT | MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASB | FASTENER LENGTH | 25.00 MILLIMETERS NOMINAL |
| AHYM | NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| AASU | HEAD HEIGHT | 8.0 MILLIMETERS NOMINAL |
| AASA | THREAD LENGTH | 20.63 MILLIMETERS MINIMUM AND 25.00 MILLIMETERS MAXIMUM |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | DIN 933 8.8 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| AASK | HEAD STYLE | HEXAGON |
| AATB | WIDTH BETWEEN FLATS | 19.0 MILLIMETERS NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | M |
| CQQR | THREAD PITCH IN MILLIMETERS | 1.75 |
| CQFM | HARDNESS RATING | 18.0 ROCKWELL C MINIMUM OVERALL AND 31.0 ROCKWELL C MAXIMUM OVERALL |