Machine Screw NSN: 5305-00-207-2793 P/N: MS24694C98
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Machine Screw- An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
|Countersink Angle:||99.0 degrees minimum and 101.0 degrees maximum|
|Fastener Length:||0.703 inches minimum and 0.750 inches maximum|
|Head Diameter:||0.447 inches minimum and 0.507 inches maximum|
|Head Style:||Flat countersunk|
|Minimum Tensile Strength:||85000 pounds per square inch|
|Nominal Thread Diameter:||0.250 inches|
|Internal Drive Style:||Cross recess type 1|
|Screw Material Document And Classification:||66 fed std all material responses|
|Screw Material:||Steel comp 302 or steel comp 304|
|Screw Surface Treatment Document And Classification:||Qq-p-35 fed spec single treatment response|
|Screw Surface Treatment:||Passivate|
|Thread Length:||0.429 inches minimum and 0.578 inches maximum|
|Thread Quantity Per Inch:||28|
|Thread Series Designator:||Unf|
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