Best M4 Press Fit Inserts

1. [ J&J Products ] M4 Brass Insert, 11.5 mm (Length), Female Thread, Press Fit/Injection Mold Type, 50 pcs

The J&J Products M4 Brass Insert gives your parts a strong metal thread. It fits tight and stays in place. It makes your work look clean and professional.

Use it to add secure threads to 3D printed parts. Each insert is made of durable brass.

2. HANGLIFE Heat-Set Threaded Inserts, M4 Heat Set Insert for 3D Printing Components and Plastic Parts – Brass Metric Knurled Nuts (100 Pieces)

HANGLIFE Heat-Set Threaded Inserts make your 3D printed parts stronger and easier to build. These brass M4 inserts help you add a firm, clean thread to plastic parts.

They fit many thermoplastics like PLA, PETG, and ABS. They give a tight hold and help stop pull-out.

This set has 100 pieces for many jobs. Each insert is durable, rust-resistant, and made for easy use.

3. E-Z LOK Threaded Inserts for Plastic, M4-0.7, Reverse Slot, Stainless Steel Threads, Press-in Installation, Pack of 5, 260-M4-RS-CR

E-Z LOK Threaded Inserts for Plastic are made for easy, strong installation. Just press them into a 3D printed or pre-drilled hole using a mallet or arbor press—no heat or glue needed. The diamond-knurled outer surface grips the plastic tightly for a secure, lasting hold.

These inserts are built from durable stainless steel for long life and strong performance. They work well in tough conditions and provide excellent resistance to torque and pull-out. Perfect for 3D printed parts, they come in flush, flanged, and reverse slot styles to fit your needs.

Simple to use. No heat required. Strong and reliable.

4. [ J&J Products, Inc ] M4 Brass Insert 50pcs,6.5mm OD, 4.7 mm Length, Female M4 Thread, Press Fitting or Heat Sink or Injection Molding Type, 50 pcs

The M4 brass inserts help you add strong metal threads to your parts. They are made for press fit, heat set, or molded-in use.

They are 6.5 mm wide and 4.7 mm long. They use M4 female thread. They help make parts look clean and well made.

Use them for 3D printed parts and other small builds. They help hold screws firmly. They give a safe and lasting fit.

5. ruthex M4 Threaded Inserts – 50 Pieces RX-M4x8.1 Brass Heat Set Insert for Plastic Parts – Metric knurled Nuts – Insert by Heat into 3D Printing Components

The ruthex M4 Threaded Inserts are perfect for adding strong, reliable threads to your 3D printed parts. Made from lead-free brass, these inserts fit easily into plastic parts using heat or ultrasound. They hold firmly thanks to their special knurled design.

These inserts work with many plastics like PLA, PETG, and ABS. They are easy to install and provide a long-lasting hold. The set includes 50 pieces with M4 internal threads, each 8.1 mm long.

6. Ktehloy 100Pcs M4 Heat Set Inserts, Metric knurled Nuts Brass Heat Set Insert for Plastic Parts,Insert by Heat into 3D Printing Components (M4xL6xD6)

These M4 brass inserts work well. Use them for your 3D prints.

They are very strong. Heat them up fast. Press them into plastic.

The metal nuts fit tight. Your projects stay together.

7. E-Z LOK Threaded Insert for Plastic Flush Brass Thread Inserts M4-0.7 Pack of 25

E-Z LOK Threaded Inserts are perfect for plastic materials. They come in brass or stainless steel and install cold, no heat needed. These M4-0.7 inserts are easy to use and come in a pack of 25.

The slotted design makes installation fast and simple. Use them with thermoset plastics, thermoplastics, or 3D printed parts. Choose from flush, flanged, or reverse slot styles for your project.

8. [ J&J Products, Inc ] M4 Brass Insert 40pcs,6.5mm OD, 7.9 mm Length, Female M4 Thread, Press Fitting or Heat Sink or Injection Molding Type, 40 pcs

J&J Products, Inc offers a 40-piece set of M4 Brass Inserts. These inserts are 6.5mm in diameter and 7.9mm long, with a female M4 thread. They are perfect for press fitting, heat sink applications, or injection molding.

These brass inserts are made of high-quality brass, weighing 56g in total. They have a 6.5xM4x7.9 size, making them ideal for various projects. The M4 thread ensures a secure fit, while the brass material provides durability.

With these inserts, you can create polished, professional products. They allow you to securely add metal threads to 3D printed parts, making your projects look and feel more sophisticated. Get 40 pieces in one set and take your creations to the next level.

9. uxcell Knurled Insert Nuts, 50pcs M4 x 4mm L x 6mm OD 3D Printing Brass Nuts Female Threaded Inserts Brass Heat Set Insert Embedment Nuts

These brass insert nuts give you strong hold in small parts. They fit well in many builds. They stay tight and steady.

Each nut has a smooth guide for fast setup. No extra shaping is needed.

The knurled grip locks in place. It works with heat or ultrasonic tools. It supports 3D prints, boards, and more.

10. ZWMSSLL M4 Heat-Set Threaded Inserts, M4x7x6mm(60Pieces) Heat Set Insert for 3D Printing Components and Plastic Parts,Brass Metric Knurled Nuts

ZWMSSLL M4 Heat-Set Threaded Inserts are perfect for 3D printing. They come in a pack of 60 pieces, each measuring M4x7x6mm. These brass nuts are lead-free and easy to store.

Made from high-quality brass, they resist heat and corrosion. The 45-degree knurling ensures a strong hold, preventing thread slippage.

Use them with thermoplastics like PLA or ABS. Install them with a soldering iron or ultrasonic methods. These inserts are reliable and durable for various projects.