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 |
|---|---|
| 24617 | GENERAL MOTORS CORP |
Federal Supply Class
Title
BOLTS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AATC | EXTENDED WASHER DIAMETER | 0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM |
| AATD | EXTENDED WASHER THICKNESS | 0.019 INCHES MINIMUM AND 0.028 INCHES MAXIMUM |
| SFTT | SURFACE TREATMENT | ZINC OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNRC |
| AASU | HEAD HEIGHT | 0.178 INCHES MINIMUM AND 0.191 INCHES MAXIMUM |
| AASA | THREAD LENGTH | 0.245 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.345 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQBC | MINIMUM TENSILE STRENGTH | 115000 POUNDS PER SQUARE INCH |
| AAUM | LOCKING FEATURE | LOCKING TEETH BEARING SURFACE OF HEAD |
| AAJD | THREAD CLASS | 2A |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| AASK | HEAD STYLE | HEXAGON EXTENDED WASHER |
| CBBL | FEATURES PROVIDED | UNFINISHED HEAD |
| CMLP | THREAD QUANTITY PER INCH | 20 |
| CQFM | HARDNESS RATING | 22.0 ROCKWELL C MINIMUM OVERALL AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| MATT | MATERIAL | STEEL COMP 1018 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1022 OVERALL |