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National Stock Number:
5305-01-229-6330
Federal Supply Class:
5305
National Item Identification Number:
012296330
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:
| 13218E0526-292 | 97403 | CECOM LR CENTER | | FF-S-85ATYIST10SGR2-1/4-28X3-3/8 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | THREAD LENGTH | 3.185 INCHES MINIMUM AND | | 3.203 INCHES MAXIMUM | | FASTENER LENGTH | 3.185 INCHES MINIMUM AND | | 3.203 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH | | MINIMUM YIELD STRENGTH | 33000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.172 INCHES MINIMUM AND | | 0.190 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | | SPECIAL FEATURES | SLOTTED HEAD |
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