|
|
|
National Stock Number:
5305-01-114-5043
Federal Supply Class:
5305
National Item Identification Number:
011145043
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
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.
|
Manufacturer Information:
| 491-HG | 78977 | UNITY MANUFACTURING CO |
|
Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 0.400 INCHES MINIMUM AND | | 0.500 INCHES MAXIMUM | | FASTENER LENGTH | 0.500 INCHES NOMINAL | | MATERIAL | COPPER OVERALL | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | SURFACE TREATMENT | CHROMIUM OVERALL | | HEAD HEIGHT | 0.172 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM |
|
|