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Worldwide distributor of NSN parts and consumables located in the USA.

Socket Head Cap Screw

Model / MPN: 518D13 | NSN: 5305-00-852-4337
ITAR Registered seal

An externally threaded fastener whose threaded portion is of one diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Product Details
NATO Stock Number
5305-00-852-4337
Sold in multiples of
100 EA
DEMIL
NO
Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.440 inches
Fastener Length
0.440 inches
Head Style
Flat chamfer
Head Diameter
0.500 inches
Head Height
0.305 inches
Hole Diameter
0.062 inches
Internal Drive Style
Hexagon
Thread Diameter
0.312 inches
Width Across Flats
Between 0.251 inches and 0.253 inches
Hole Quantity
6
Hole Type
Drilled
Thready Qty Per Inch (tpi)
24
Hardness Rating
32.0 rockwell c and 36.0 rockwell c
Hole Configuration Style
Round
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 8740
Material Specification
Ams 6322 assn standard single material response
Surface Treatment
Cadmium
Thread Series Designator
Unf
518D Series Parts

Pricing and Availability

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518D13 Cross Reference