Part Number
Part Number:
NSN:
NIIN:
Item Name:
SCREW , CAP , HEXAGON HEAD
Definition:
AN EXTERNALLY THREADED FASTENER DESIGNED FOR INSERTION INTO HOLES IN ASSEMBLED PARTS, FOR MATING WITH A PREFORMED INTERNAL THREAD AND FOR TIGHTENING OR RELEASING BY TORQUING THE HEAD. THE THREADED AND UNTHREADED PORTIONS ARE BOTH OF THE SAME NOMINAL DIAMETER OF 0.190 INCH (5 MM) OR LARGER. HEAD DIMENSIONS AND SIZES OF THREADED AND UNTHREADED PORTIONS SHALL CONFORM TO INTERNATIONALLY RECOGNIZED FASTENER STANDARDS. THE THREAD LENGTH BEING THE CONTROLLED DIMENSION, THE GRIP LENGTH IS NOT SPECIFIED. A LOCKING FEATURE MAY BE INCORPORATED IN THE DESIGN OF THE HEAD OR THREADS. EXCLUDES BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; AND SCREW, CAP, SOCKET HEAD.
CAGE Information
| Code | Company |
|---|---|
| 04627 | NACCO MATERIALS HANDLING GROUP INC |
Federal Supply Class
Title
SCREWS
Inclusions:
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| AASM | BOTTOM COUNTERSINK DIAMETER | 0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM |
| MATT | MATERIAL | STEEL COMP 1018 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1022 OVERALL OR STEEL COMP 1025 OVERALL OR STEEL COMP 1016 OVERALL OR STEEL COMP 1015 OVERALL OR STEEL COMP 1013 OVERALL OR STEEL COMP 1026 OVERALL OR STEEL COMP 1040 OVERALL OR STEEL COMP 1038 OVERALL OR STEEL COMP 1527 OVERALL OR STEEL COMP 1029 OVERALL OR STEEL COMP 1033 OVERALL OR STEEL COMP 1035 OVERALL OR STEEL COMP 1536 OVERALL OR STEEL COMP 1037 OVERALL OR STEEL COMP 1019 OVERALL OR STEEL COMP 1039 OVERALL OR STEEL COMP 1017 OVERALL OR STEEL COMP 1034 OVERALL OR STEEL COMP 1023 OVERALL OR STEEL COMP 1020 OVERALL OR STEEL COMP 1030 OVERALL OR STEEL COMP 1524 OVERALL OR STEEL COMP 1541 OVERALL |
| AASA | THREAD LENGTH | 0.970 INCHES MINIMUM AND 1.160 INCHES MAXIMUM |
| AATB | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL |
| CRSQ | COUNTERSINK ANGLE | 37.5 DEGREES MINIMUM AND 38.0 DEGREES MAXIMUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HC 402 FSC-30076 MFR REF 1ST TREATMENT RESPONSE OVERALL OR HC 403 FSC-30076 MFR REF 2ND TREATMENT RESPONSE OVERALL |
| AHYM | NOMINAL THREAD DIAMETER | 0.500 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| CQFM | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| AASB | FASTENER LENGTH | 1.875 INCHES NOMINAL |
| THSD | THREAD SERIES DESIGNATOR | UNC |
| AASU | HEAD HEIGHT | 0.840 INCHES NOMINAL |
| AAJD | THREAD CLASS | 2A |
| AASK | HEAD STYLE | HEXAGON COUNTERSUNK UNDERCUT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| SFTT | SURFACE TREATMENT | PHOSPHATE OVERALL OR PHOSPHATE ZINC OVERALL |
| CMLP | THREAD QUANTITY PER INCH | 13 |