MS18063 Socket Set Screw

About The MS18063 Socket Set Screw

One of the most common socket set screws we distribute is the MS 18063, which also goes by the title of NASM 18063. We distribute this socket set screw to those within the aerospace industry nationwide.

The socket end of screw will be flat and chamfered. And the chamfer will extend to the minor diameter of the thread and the edge between flat and chamfer shall be slightly rounded. The location of the effective locking area "X" is in accordance with military standards and for ease in starting, the locking element shall not be effective within this area. The maximum major thread diameter is plus 0.010 and that equals the maximum ring gage diameter that the locking region of the part must pass through freely or with finger pressure.

The material for the manufacturing of the socket set screw is hardened by quenching in oil from the hardening temperature and tempered to a Rockwell Hardness of C 33-40 or equivalent.

MS18063 Socket Set Screw Specifications and Features

The MS18063 socket set screw is a military-specification fastener designed for applications that require a hexagon socket drive, cup point, and self-locking feature. Also referenced as NASM18063, this fastener is used in military and aerospace hardware applications where selecting the correct specification, thread size, length, material, and finish is essential.

Sesco Industries supplies military and aerospace fasteners to customers throughout the United States. Contact our team to discuss your MS18063 socket set screw requirements, confirm part-number details, and request a quote.

Key Features of the MS18063 Socket Set Screw

The MS18063 specification identifies a socket set screw with the following characteristics:

  • Hexagon socket drive: Allows installation using a compatible hex key or Allen wrench.
  • Cup point design: Provides a recessed contact point intended to help grip the mating surface.
  • Self-locking element: Incorporates a locking feature designed to help resist loosening when installed in accordance with applicable requirements.
  • Alloy steel construction: Uses hardened alloy steel for the strength and durability required by the specification.
  • Cadmium-plated finish: The specified finish is intended to provide surface protection and must be verified against the applicable specification and procurement requirements.
  • Controlled hardness: The referenced specification identifies a Rockwell hardness range of C33–C40 or equivalent.

Always verify the applicable drawing, specification revision, and procurement requirements before selecting a replacement fastener.

Applications for MS18063 Military Set Screws

MS18063 socket set screws may be specified for military and aerospace assemblies where a compact, headless fastening solution and a self-locking feature are required.

Potential application areas include:

  • Aerospace hardware and mechanical assemblies
  • Military equipment and defense-related systems
  • Precision mechanical components
  • Assemblies requiring specification-controlled fasteners
  • Actual suitability depends on the engineering design, operating environment, and approved bill of materials. Confirm the required fastener specification with your engineering or procurement team before ordering.

Contact Sesco Industries Today

At Sesco Industries, we pride ourselves on providing our customers with the best selection of military spares and parts on the market. We have a great selection of socket set screws and are an authorized dealer in the United States of America. Many in the military and aerospace industries use our fasteners, which includes this MS18063 socket set screw. Learn more about socket set screws and their uses in the aerospace industry. These screws offer many great advantages for use and our selection of them aid many in the industry.

Request a Quote!

When you order parts from Sesco, you can rest assured of receiving the highest quality products. All backed with full documentation of inspection data applicable to the parts you are purchasing. Our certification shows that we have complied with all specifications for military socket set screws and aerospace parts. Purchase in confidence when you turn to Sesco!

Frequently Asked Questions About MS18063 Socket Set Screws

What is an MS18063 socket set screw?

An MS18063 socket set screw is a military-specification fastener featuring a hexagon socket, cup point, alloy steel construction, cadmium-plated finish, and a specified self-locking element.

Is MS18063 the same as NASM18063?

MS18063 is commonly cross-referenced as NASM18063 in military and aerospace fastener catalogs. Verify the applicable specification, revision, and complete part number before treating a part as interchangeable.

What material is used for an MS18063 set screw?

The specification identifies alloy steel that is hardened by heat treatment. The specified hardness is Rockwell C33–C40 or equivalent. Confirm material and finish requirements against the applicable procurement documentation.

What does the cup point do on an MS18063 screw?

The cup-shaped point provides a localized contact area intended to grip a mating surface. The appropriate point style depends on the assembly design and engineering requirements.

How do I identify the correct MS18063 part number?

Check the complete part number and dash number, thread size, pitch, length, finish, and applicable drawing or specification. These details help distinguish the required configuration from other fasteners in the same series.