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National Stock Number:
5305-01-275-3290
Federal Supply Class:
5305
National Item Identification Number:
012753290
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:
| 7081554 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | THREAD LENGTH | 4.000 INCHES MINIMUM AND | | 4.250 INCHES MAXIMUM | | FASTENER LENGTH | 7.969 INCHES MINIMUM AND | | 8.031 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1020 OR | | STEEL COMP 1025 OR | | STEEL COMP 1030 OVERALL | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 ASSN STD ALL MATERIAL RESPONSES OVERALL | | SURFACE TREATMENT | PHOSPHATE ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-12968 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD HEIGHT | 0.546 INCHES MINIMUM AND | | 0.578 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.984 INCHES MINIMUM AND | | 1.016 INCHES MAXIMUM |
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