You might also be interested in these 3d printing brass nut.
Habwea 308PCS Heat Set Threaded Inserts Kit,M2 M2.5 M3 M4 M5 M6 Brass Knurled Inserts for Plastic & 3D Printing, 300 Inserts with 8 Installation Tools
Habwea
£ 10.99
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5% off
qxayxa 370 Pcs Brass Knurled Inserts, M2–M6 & 1/4‑20, Press‑In Threaded | Press‑in/heat‑set inserts for plastic & 3D prints—strong female threads; sizes M2–M6 and 1/4‑20; organized storage box.
qxayxa
£ 9.99
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120 PCS Threaded Inserts for Plastic M2,M3,M4,M6 Heat Set Insert for 3D Printing Components Brass Metric Knurled Nuts
Swagwert
£ 7.99
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100pcs 3D Printing Brass Nuts, M3x3x5mm M3 Threaded Insert Knurled Brass Nuts Female Thread Knurled Heat Embedment Nut for 3D Printing Parts Loptop Automotive Plastic Shell
SAVITA
£ 6.99
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8% off
100 PCS M3 Heat Set Inserts, Threaded Inserts for 3D Printing, Brass Knurled Insert Nuts for 3D Components, Secure Fastening for Plastic Parts, M3 Metric Internal Thread, Fasteners for Thermoplastics
Uliwamowi
£ 5.96
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Bnnrjia 150 Pcs M3 3D Printing Brass Knurled Nuts, Threaded Insert Female Internal Press-in Thread Heat Embedment Nuts for Parts Plastic Shell
Bnnrjia
£ 6.99
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TOP-VIGOR 60Pcs M3 Threaded Knurled Insert Nuts, M3 x 5mm x 5mm OD 3D Printing Brass Nuts, Female Threaded Inserts Brass Heat Set Insert Embedment Nut for 3D Printing
TOP-VIGOR
£ 5.52
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100 Pack M5 Threaded Insert M5 Heat Set Inserts 3D Printing Brass Nuts Knurled Twill Thread Nut Inserts for Automotive Plastic Shells
Prasacco
£ 7.99
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sturiz 60pcs Threaded Inserts M4 Threaded Inserts for Plastic Heat Set Insert Tool Thread Insert 3D Printing Brass Metric Knurled Nuts
sturiz
£ 5.99
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ShineNow M2 M2.5 M3 Heat Set Inserts for Plastic Threaded Brass Insert Nuts for 3D Printing 170pcs
ShineNow
£ 7.99
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3DZWMAN 50PCS 1/4-20 Threaded Inserts for 3D Printed and Plastic Parts
3DZWMAN
£ 9.99
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M4 Threaded Inserts 120pcs, Female Threaded Brass Heat Set Inserts, Gold | quality brass, rust-proof, temperature-resistant, precise fit, sturdy and durable for 3D printing, automotive plastic shell