4-40 Brass Threaded Inserts, 4pkg, Du-Bro
CAT.528 · DWG 10-391 SCALE 1:1 PHOTO4-40 Brass Threaded Inserts, 4pkg, Du-Bro
FIG. 1
DU-BRO

4-40 Brass Threaded Inserts, 4pkg, Du-Bro

10-391
$9.90incl. GST · free NZ shipping

      Du-Bro - 391 4-40 Brass Threaded Inserts, 4pkg. The DU-BRO Threaded Inserts make it simple to add strong, reliable machine threads to wood. These brass inserts are perfect for RC builders who need a secure way to mount engines, attach wings, install hatches, or fasten parts where a blind nut won’t fit. Instead...

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Click & collect →
In stock — 6 on the shelf in Christchurch
1–2 working day dispatch · tracked courier NZ-wide
Checked & test-run by Shane before it ships · 30-day returns

 

 

 

Du-Bro - 391

4-40 Brass Threaded Inserts, 4pkg.

The DU-BRO Threaded Inserts make it simple to add strong, reliable machine threads to wood. These brass inserts are perfect for RC builders who need a secure way to mount engines, attach wings, install hatches, or fasten parts where a blind nut won’t fit. Instead of relying on wood screws that loosen over time, threaded inserts give you a durable, reusable mounting point that holds tight even under vibration.

Each insert is made from high-quality brass, which provides excellent strength and resists corrosion. Once installed, bolts can be removed and reinstalled many times without wearing down the wood. This makes them ideal for areas of your RC model that require frequent access or maintenance.

Threaded inserts are also widely used outside the RC hobby. They work great for woodworking, cabinetry, furniture building, robotics, and custom projects where strong internal threads are needed in wood or composite material.

Installation is simple: drill the hole, thread the insert into place, and you’re ready to mount your parts securely. Each package includes four brass threaded inserts, giving you a dependable fastening solution for repairs, upgrades, or new builds.

If you want a clean, long-lasting way to create solid threads in wood, the DU-BRO Threaded Inserts are a reliable choice for any project.

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    Shane keeps the right packs and receivers on the shelf — ask if you're unsure.

    Assembly notes coming soon — ask Shane if you need a hand before your first flight.

    Dispatch — Orders dispatch within 1–2 working days. Tracked courier NZ-wide; delivery typically 1–3 working days depending on location. Rural delivery adds a day.

    Cost — Free over $150. Flat $9.50 under. Oversized airframes may carry a freight surcharge — shown at checkout.

    Click & collect — Free pickup from 9 North Avon Road, Christchurch. After-hours by appointment — text ahead.

    Returns — 30-day returns on unflown, as-new items. Crash damage isn't covered, but Shane stocks the spares to put it right.

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