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National Stock Number:
5305-00-639-0820
Federal Supply Class:
5305
National Item Identification Number:
006390820
Description:
SETSCREW
Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.
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Manufacturer Information:
| FF-S-210 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY THREAD CLASS | | FASTENER LENGTH | 0.250 INCHES NOMINAL | | HARDNESS RATING | 45.0 ROCKWELL C MINIMUM OVERALL AND 53.0 ROCKWELL C MAXIMUM OVERALL | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 4 STYLE | | INTERNAL DRIVE STYLE | HEXAGON | | MATERIAL | STEEL COMP 4037 OVERALL OR STEEL COMP 4137 OVERALL OR STEEL COMP 4130 OVERALL OR STEEL COMP 8630 OVERALL OR STEEL COMP 8740 OVERALL | | POINT STYLE | CUP | | THREAD CLASS | 2A | | THREAD LENGTH | 0.250 INCHES MINIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNC | | WIDTH ACROSS FLATS | 0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM |
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