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National Stock Number:
5305-99-729-4247
Federal Supply Class:
5305
National Item Identification Number:
997294247
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.
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Manufacturer Information:
| S3S14526000-418 | K0378 | ROLLS-ROYCE PLC | | SPE306-E28 | K0378 | ROLLS-ROYCE PLC |
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Techincal Specification:
| FASTENER LENGTH | 1.688 INCHES MINIMUM AND 1.813 INCHES MAXIMUM | | HARDNESS RATING | 223.0 BRINELL STANDARD MINIMUM AND 310.0 BRINELL STANDARD MAXIMUM OVERALL | | HEAD HEIGHT | 0.153 INCHES MINIMUM AND 0.163 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | BS NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS 970 EN18S NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | MINIMUM TENSILE STRENGTH | 112000 MEGAPASCALS | | SPECIAL FEATURES | THDS PER IN. | | WIDTH BETWEEN FLATS | 0.431 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MOD DEF STAN 03-11 CLASS 11 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM |
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