NZ-M3-1 Hexagonal Flare-In Nut, Carbon Steel

Product Overview

The NZ-M3-1 is a carbon steel hexagonal flare-in nut with an M3 x 0.5 internal thread. It is designed to create a captive female thread in a correctly prepared sheet or panel through controlled press installation. The hexagonal body supports positive engagement while the flared mounting section secures the nut in the assembly.

Key Features

• Exact product number: NZ-M3-1

• Product series: NZ carbon steel model

• Product type: hexagonal flare-in nut

• Internal thread: M3 x 0.5

• Thread code: M3

• Bottom code: 1

• Catalog mounting hole: 5.0 mm with a stated tolerance of 0.08 mm

• Dimension C: 4.98 mm maximum

• Dimension E: 6.0 +/- 0.25 mm

• Dimension T: 3.0 +/- 0.10 mm

Exact Specifications

The following values come from the M3 family on the NZ/NZS hexagonal flare-in nut page of the LAMBOOR standard fastener catalog. All dimensions are in millimeters.

• Product number: NZ-M3-1

• Material family: carbon steel

• Thread size and pitch: M3 x 0.5

• Thread code: M3

• Bottom code: 1

• Installation hole: 5.0 with catalog tolerance 0.08

• Dimension C maximum: 4.98

• Dimension E: 6.0 +/- 0.25

• Dimension T: 3.0 +/- 0.10

The catalog model breakdown illustrates bottom code 1, while the tabulated M3 A-dimension and minimum-sheet-thickness rows are labeled 1.5 and 2. For this reason, those two values should be taken from the approved drawing or verified sample for NZ-M3-1 rather than copied from a different table row.

Part Number Breakdown

NZ identifies the carbon steel hexagonal flare-in nut series. M3 identifies the M3 x 0.5 thread code, and 1 is the bottom code shown in the product designation. Use the complete NZ-M3-1 product number when requesting a quotation or confirming an order. Do not replace NZ with NZS unless the stainless steel version is required.

Installation and Panel Requirements

Prepare the sheet feature and mounting hole according to the approved installation drawing and tooling requirements. The catalog lists a 5.0 mm mounting hole with a stated tolerance of 0.08 mm for the M3 family. Position the nut squarely and use controlled, parallel press force with compatible flare-in tooling until the mounting section is correctly formed and seated.

Do not use uncontrolled impact installation. Burrs, an incorrect hole feature, misalignment or excessive press force can affect seating, panel condition and thread quality. Verify the sheet material, sheet thickness, hole preparation, installed condition and M3 thread on an approved first article before production release.

Material and Finish

The NZ model is identified as carbon steel in the catalog. The exact catalog page does not assign a separate coating or plating specification to NZ-M3-1. The visible metallic appearance in the product photograph is not sufficient to establish a finish. State any zinc plating, corrosion resistance, appearance or documentation requirement in the approved order.

Selection and Related Variants

Select NZ-M3-1 when the required configuration is a carbon steel hexagonal flare-in nut with an M3 x 0.5 internal thread and bottom code 1. The catalog identifies NZ as the carbon steel family and NZS as the stainless steel family. Other thread sizes and bottom configurations have different dimensions, so do not substitute another series, thread code or bottom code without checking the corresponding catalog entry and approved drawing.

Use Conditions

This product is intended for sheet or panel assemblies that require a captive M3 female thread and a hexagonal flare-in mounting structure. Suitability depends on the sheet material, thickness, prepared hole geometry, installation tooling, applied press force and required finish. Confirm these conditions during part approval rather than relying on the product photograph alone.

Ordering Information

For quotation or order confirmation, provide NZ-M3-1, required quantity, sheet material and thickness, mounting-hole preparation, required coating or finish, inspection requirements, packaging requirements and the approved drawing or sample reference. Confirm current stock, price, minimum order quantity and lead time for each order.

Frequently Asked Questions

What does NZ-M3-1 identify?

NZ-M3-1 identifies the carbon steel NZ-series hexagonal flare-in nut with an M3 x 0.5 internal thread and bottom code 1. Use the complete designation because changing NZ to NZS changes the material family, while changing the final code selects a different mounting configuration.

What is the difference between NZ and NZS flare-in nuts?

NZ identifies the carbon steel family, while NZS identifies the stainless steel family on the same catalog page. Select the series according to the required material and corrosion performance, and state any coating or material documentation requirement in the approved order.

Which mounting dimensions are listed for the M3 family?

The catalog lists a 5.0 mm installation hole with a stated tolerance of 0.08 mm, a 4.98 mm maximum C dimension, a 6.0 +/- 0.25 mm E dimension and a 3.0 +/- 0.10 mm T dimension for the M3 family. These values do not replace the approved installation drawing.

Why are the A dimension and minimum sheet thickness not stated here?

The catalog model breakdown illustrates bottom code 1, but the M3 table labels its A-dimension and minimum-sheet-thickness rows as 1.5 and 2. To avoid assigning the dimensions of another row to NZ-M3-1, confirm these two values from the approved drawing or verified sample.

How should NZ-M3-1 be installed?

Install NZ-M3-1 with compatible flare-in tooling and controlled parallel press force in the correctly prepared sheet feature. Avoid impact installation, keep the hole free of burrs and verify seating, panel condition and thread quality on an approved first article.

What information should be supplied when ordering?

Provide the complete NZ-M3-1 product number, quantity, sheet material and thickness, mounting-hole preparation, required finish, inspection requirements, packaging requirements and approved drawing or sample reference. Stock, price, minimum order quantity and lead time should be confirmed for the current order.

Quotation and Installation Drawing

Provide the complete product number and panel drawing with the quotation information checklist, or use the NZ-M3-1 inquiry form to discuss the requirements.