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Machine Screw

Model / MPN: 14477-4 | NSN: 5305-01-047-0344
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 EA
Thread Class
Thread Direction
Thread Length
Between 0.125 inches and 0.187 inches
Fastener Length
Between 0.156 inches and 0.187 inches
Head Style
Head Diameter
Between 0.124 inches and 0.140 inches
Head Height
Between 0.053 inches and 0.062 inches
Internal Drive Style
Thread Diameter
0.086 inches
Thready Qty Per Inch (tpi)
Screw Material
Copper alloy 230 or copper alloy 240 or copper alloy 260 or copper alloy 268 or copper alloy 342 or copper alloy 353 or copper alloy 360 or copper alloy 377
Thread Series Designator

Pricing and Availability

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14477-4 Cross Reference