CFHA-M3-10 Concealed-Head Stud, Aluminum

Product Overview

The CFHA-M3-10 is a 6061 aluminum concealed-head stud with an M3 x 0.5 external thread and a nominal 10 mm length. It is installed in a blind milled hole so the fastener head remains concealed within the panel while providing a permanent male thread for assembly.

Key Features

• Exact product number: CFHA-M3-10

• 6061 aluminum construction

• M3 x 0.5 external thread

• 10 mm length code

• Concealed-head press installation

• 2.4 mm minimum sheet thickness

• 4.37 mm installation hole

Exact Specifications

The following values are taken from the CFHA-series M3 row of the LAMBOOR standard fastener catalog. All dimensions are in millimeters.

• Thread size and pitch: M3 x 0.5

• Product series: CFHA

• Thread code: M3

• Length code: 10

• Nominal stud length: 10

• Minimum sheet thickness: 2.4

• Installation hole: 4.37

• Minimum installation-hole depth: 1.91

• Dimension A maximum: 1.8

• Dimension E: 5.21 +/- 0.25

• Dimension C maximum: 4.35

• Minimum edge distance: 4.0

• Maximum mating hole after installation: 3.5

Part Number Breakdown

Use the complete product number CFHA-M3-10 when requesting a quotation or placing an order. CFHA identifies the aluminum concealed-head stud series for the thicker mounting configuration, M3 identifies the M3 x 0.5 thread code, and 10 identifies the nominal stud length.

Installation and Panel Requirements

Prepare a 4.37 mm blind installation hole with at least 1.91 mm depth and maintain a minimum edge distance of 4.0 mm. The sheet must be at least 2.4 mm thick. Position the concealed head squarely in the prepared hole and apply controlled parallel press force with suitable tooling until it is seated according to the installation drawing. Inspect the panel surface, head seating and M3 thread after installation.

Material and Finish

The CFHA series uses 6061 aluminum. The catalog does not state a separate surface finish for this product number. If a coating or anodized finish is required, state the requirement when ordering and confirm that the finish is compatible with the installation hole, clinching surfaces and thread.

Selection and Ordering

Select CFHA-M3-10 when an assembly requires an M3 x 0.5 male thread, a 10 mm nominal length and a concealed fastener head in an aluminum panel meeting the catalog limits. For quotation and order confirmation, provide the complete product number, quantity, panel material and thickness, hole preparation, finish requirement, packaging requirement and any inspection or compliance documentation.

Frequently Asked Questions

What does CFHA-M3-10 identify?

CFHA-M3-10 identifies the 6061 aluminum concealed-head stud series, an M3 x 0.5 external thread and a nominal 10 mm stud length. Use the complete product number when ordering because each code segment selects a specific catalog configuration.

What panel preparation is required for CFHA-M3-10?

Prepare a 4.37 mm blind installation hole with a minimum depth of 1.91 mm in a sheet at least 2.4 mm thick. Maintain at least 4.0 mm from the hole center to the panel edge and inspect the prepared hole before press installation.

Will the stud head remain hidden after installation?

Yes. CFHA-M3-10 is designed for installation in a blind milled hole, so the head is retained inside the panel rather than passing through the opposite face. The actual surface result depends on correct hole preparation, panel condition and controlled press installation.

How does CFHA-M3-10 differ from CHA-M3-10?

Both are aluminum M3 concealed-head studs with a 10 mm length code, but the catalog assigns CFHA-M3-10 to a 2.4 mm minimum sheet thickness and 1.91 mm minimum installation-hole depth. CHA-M3-10 uses a 1.6 mm minimum sheet thickness and 1.1 mm minimum installation-hole depth.

What information should be supplied when ordering?

Provide the complete product number CFHA-M3-10, required quantity, panel material and thickness, hole preparation, finish requirement, packaging requirement and any inspection or compliance documentation. Stock, price, minimum order quantity and lead time should be confirmed for the current order.