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Machine Screw

Model / MPN: 583842 | NSN: 5305-00-285-3957
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one 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.

Product Details
NATO Stock Number
Sold in multiples of
1 HD
Thread Class
Thread Direction
Thread Length
Between 0.250 inches and 0.312 inches
Fastener Length
Between 0.281 inches and 0.312 inches
Head Style
Head Height
Between 0.067 inches and 0.080 inches
Width Between Flats
Between 0.244 inches and 0.250 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
Screw Material
Screw Surface Treatment
Cadmium or zinc
Screw Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response
Thread Series Designator

Pricing and Availability

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583842 Cross Reference
  • 445927
  • 445927