★ Free US shipping over $99Ships fast — usually within 1 business day (median this month: ~1h)Voron · ERCF · Ender · Milo · Stinger · Printers for AntsThe Sale is on — real markdowns, honest pricesdfh.fm — for makers
Black-nickel coated brass threaded heat-set inserts in assorted metric sizes for 3D printed parts

Black Nickel Coated Threaded Heat Set Inserts

5.0 (8 reviews)
$6.00
Size
Count
1

More payment options at checkout

📦 Ships fast — usually within 1 business day · median this month: ~1h★ Free US shipping over $99

Brass heat-set threaded inserts with a deep black-nickel coating that won't fade with heat. You melt them into a printed part with a soldering iron; as the plastic re-solidifies it locks the knurled insert in place, giving you a strong, reusable metal thread instead of tapping into plastic.

The Voron spec is M3x5x4. Other sizes follow the dimensions used in popular machines and components, including the Milo Mill and XOL. The standard way to add durable, re-openable fasteners to any printed assembly. Sold in packs.

Pairs well with

Builder reviews

5.0
8 reviews · real orders
58
40
30
20
10
Andy2024-07-27

These things are the best. Really take a project to the next level, no one likes seeing brass peeking out of your printed parts. Stop being a chump. I’ve got like 300 of these, they’re consuming my life.

James✓ verified by Shop2024-07-25

Black and not brass colored, not much more to it.

Andrew S.✓ verified by Shop2024-06-14

I'll never use another heatset. These are too beautiful

Daniël G.✓ verified by Shop2024-02-22

Great quality

Ryan G.✓ verified by Shop2023-11-19

perfect