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Nuts · Closed-End Rivet Nuts

Closed-End Round-Body Blind Rivet Nuts

5 catalogued sizes, dimensioned to Trade series (closed-end blind rivet nuts). Pick any row and the technical drawing redraws to it.

Closed-End Round-Body Blind Rivet Nuts to Trade series (closed-end blind rivet nuts) are catalogued in sizes M4 to M10, with pitch 0.7-1.5 mm, head 9-17 mm. 5 sizes are held in the table below, and the technical drawing redraws to whichever row you select.

Standard
Trade series (closed-end blind rivet nuts)
Size range
M4-M10
Pitch
0.7-1.5 mm
Head
9-17 mm
Catalogued sizes
5

Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering.

Closed-End Round-Body Blind Rivet Nuts technical product image

Applications & Industries

What Closed-End Round-Body Blind Rivet Nuts are specified for, industry by industry. Stocked from M4 to M10.

Industries that specify Closed-End Round-Body Blind Rivet Nuts

  • Outdoor enclosures Cover and bracket attachment points exposed to water and dirt.
  • HVAC fabrication Panel hardware installed after the duct or enclosure has been formed.
  • Refrigeration equipment Sealed threaded mounting points in formed panels and closed housings.
  • Vehicle bodywork Blind threads in rails and box sections where the cavity must stay closed.
  • Automotive & transport Vibration-prone joints where the locking type is specified on the drawing.
  • Maintenance & MRO Replacements matched to the existing bolt class, thread and finish.

Typical applications

  • forming the blind bulb within the specified grip range
  • choosing steel, stainless steel or aluminum for the service environment
  • adding a sealed internal thread from the front face of a panel
  • keeping water and debris out of a closed section behind the insert
  • joints re-torqued at a service interval
  • completing a bolted joint on a stud, rod or bolt

Service conditions to specify against

Marine and coastal
Available in A4 (316) stainless for chloride exposure — coastal structures, pool halls, water treatment and deck hardware, where A2 will eventually pit.
High load
Supplied in ISO 898-1 property classes, so the joint can be designed to a stated proof load and tightened to a calculated torque rather than by feel.
Match the class
A nut below the bolt property class strips before the bolt reaches its own limit — pair class 8 nuts with 8.8 bolts, class 10 with 10.9.

Where to use something else

  • Do not drill to the thread minor diameter; the installation hole is set by the body and forming requirements.

Full application guide: where Closed-End Round-Body Blind Rivet Nuts are used, how to specify them, and the cases they are wrong for

Technical Drawing

Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the size will snap the other fields to that size's standard values; you can then override any individual value.

Sends the selected values to the quote form below.

Request a Quotation for Closed-End Round-Body Blind Rivet Nuts

The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.

Request a Quotation

Specification
Business Information

Dimensions & Specifications (Trade series (closed-end blind rivet nuts))

Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row.

Thread sizePitch (mm)Grip range (mm)Installation hole (mm)Head diameter (mm)EndMaterial options

Manufactured to Trade series (closed-end blind rivet nuts), Closed-End Round-Body Blind Rivet Nuts are nuts supplied by Engineering Hardware. The dimensional data, materials and selection notes are summarized here.

What Are Closed-End Round-Body Blind Rivet Nuts?

Closed-End Round-Body Blind Rivet Nuts are nuts defined by Trade series (closed-end blind rivet nuts). They are selected by thread size and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment.

Materials & Finishes

Common materials include carbon steel (typically zinc plated or hot-dip galvanized), alloy steel in property classes 8.8, 10.9 and 12.9, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, property class and surface finish appropriate to your load and environment.

Pricing

Closed-End Round-Body Blind Rivet Nuts are supplied to order. Pricing starts from approximately US$0.12 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above.

Inside the plant

Manufactured in our own plant

This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided.

  1. Wire rod feeding into a cold heading machine
    01

    Cold heading

    Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail.

    Head dimensions and under-head radius checked at set-up and per shift.

  2. Thread rolling machine producing bolt threads
    02

    Thread rolling

    Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch.

    Go / no-go ring gauges to ISO 965 tolerance class 6g.

  3. Baskets of bolts staged for heat treatment
    03

    Heat treatment

    Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it.

    Core hardness and tensile tested per lot to ISO 898-1.

  4. Zinc plated bolts in a treatment basket
    04

    Surface treatment

    Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list.

    Coating thickness and neutral salt spray hours to ISO 9227.

Frequently Asked Questions

What is the controlling standard for Closed-End Round-Body Blind Rivet Nuts?

Closed-End Round-Body Blind Rivet Nuts are manufactured to Trade series (closed-end blind rivet nuts). The dimensional values on this page follow that standard.

What sizes are available for Closed-End Round-Body Blind Rivet Nuts?

The table on this page lists 5 sizes for Closed-End Round-Body Blind Rivet Nuts, ranging from M4 to M10. Sizes outside the table can be quoted on request.

In which materials are Closed-End Round-Body Blind Rivet Nuts supplied?

Closed-End Round-Body Blind Rivet Nuts are supplied in matching property-class steel and stainless A2 / A4, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for Closed-End Round-Body Blind Rivet Nuts.

How do I request a quotation?

Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.