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Upgrade Your 3D Prints with Stronger Threads
FFVRVSS M3 Brass Threaded Inserts provide a durable solution for adding strong, reusable metal threads to your 3D printed parts. This kit includes 200 lead-free brass inserts in the M3x4x4.2mm size, perfect for a wide range of projects. The 45-degree spiral knurling ensures maximum torque resistance and pull-out strength, outperforming standard straight-thread inserts. Compatible with common thermoplastics like PLA, PETG, and ABS, these inserts are essential for makers and hobbyists looking to enhance their prints.
Installation is straightforward using a soldering iron (not included). Heat the iron to 200-250°C for PLA or 350-400°C for PETG/ABS, press the insert into a pre-drilled pilot hole until flush, and hold for 3-5 seconds. The plastic cools and locks the insert securely in place. This kit is perfect for electronics enclosures, circuit board mounting, toy assembly, and furniture repair, offering a reliable threaded connection in plastic components. The included organized case keeps all 200 pieces readily accessible.
Imported directly from authorized US retailers and authorized brand partners, these FFVRVSS inserts offer superior quality compared to generic local alternatives. All customs duties and GST are included in the listed price, with delivery via ExpressBox tracked shipping to your Indian pincode. Ensure your 3D prints have robust, long-lasting threaded connections with this essential kit.
Engineered for 3D Printing Durability
These FFVRVSS M3 brass threaded inserts are specifically designed to overcome the limitations of plastic threads in 3D prints. The lead-free brass material offers excellent thermal conductivity for easy heat-set installation and superior corrosion resistance. Unlike straight inserts, the 45-degree spiral knurling provides exceptional torque and pull-out strength, ensuring your connections remain secure even under stress. This kit is ideal for makers who need reliable, long-lasting threaded connections in their prototypes and final products.
Ideal for Makers, Skip if...
Perfect for 3D printing enthusiasts, electronics projects, and DIY repairs requiring robust threaded connections in PLA, PETG, ABS, and other thermoplastics. Skip if you need metric M4 or larger sizes, or if you require inserts for metal applications. Not suitable for direct use without a soldering iron and appropriate pilot holes.
Typical situations where FFVRVSS M3 Brass Threaded Inserts Kit 200Pcs (M3x4x4.2mm) | Heat Set for 3D Printing helps — illustrative scenarios, not customer reviews.
A hobbyist in Bangalore needs to add secure, removable threaded connections to a custom 3D printed drone frame.
Using the FFVRVSS M3 brass inserts allows for strong, repeatable screw mounting of components. The heat-set installation ensures a permanent hold in the plastic, while the M3 threads allow for easy assembly and disassembly of parts.
A maker in Delhi is assembling an electronics enclosure for a Raspberry Pi project and wants durable mounting points for the circuit board.
The 200-piece kit provides ample M3 inserts to securely mount the circuit board and other components. The brass construction offers better thermal conductivity during installation and superior strength compared to directly tapping the plastic.
| Primary Material | Lead-Free Brass |
| Thread Type | Internal Female Thread |
| Installation Temperature | 200-250°C (PLA), 350-400°C (PETG/ABS) |
| Pilot Hole Diameter | Slightly smaller than 4mm |
| Hold Time | 3-5 seconds |
| Cost per use | 200 pieces at ₹1,420 — ₹7.10 per piece |
| Shelf life after opening | Indefinite (stored properly) |
| Contraindications | Not for metal applications; requires soldering iron and pilot holes. |
| Allergens / common irritants | None identified |
| Feature | FFVRVSS M3 Brass | Others |
|---|---|---|
| Material | Lead-Free Brass | Often brass or zinc-plated steel; quality varies |
| Thread Design | 45-Degree Spiral Knurling for High Torque Resistance | May be straight-threaded or have less aggressive knurling |
| Quantity | 200 Pieces (M3x4x4.2mm) | Varies by pack; often fewer pieces or multi-size kits |
| Installation | Heat-set with soldering iron; no countersinking needed | Similar heat-set method; some may require pilot hole prep |
| Cost per piece | 200 pieces at ₹1,420 — ₹7.10 per piece | Local packs may range from ₹5-15 per piece depending on quantity and material |
| SKU | swk8332 |
| Brand | FFVRVSS |
| Product Name | M3 Brass Threaded Inserts Kit |
| Model Number | M3 Threaded Inserts #4-40 (UNC) |
| Set Name | 200Pcs M3x4x4.2 |
| Quantity | 200 Pieces |
| Thread Size | M3x4x4.2mm |
| Outer Diameter | 3 mm |
| Material | Lead-Free Brass |
| Finish Type | Brass |
| Knurling | 45-Degree Spiral |
| Compatibility | PLA, PETG, ABS, PPS, PP, Thermoplastics |
| Installation Method | Heat Set (Soldering Iron Required) |
| Item Weight | 48 grams |
| Package Dimensions | 6.4 cm x 6.5 cm x 1.5 cm (2.6 x 2.6 x 0.65 inches) |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About FFVRVSS
FFVRVSS specializes in high-quality hardware for makers and hobbyists, focusing on durable solutions for 3D printing and electronics projects.
Compliance & Legal
No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging.
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This item:
FFVRVSS M3 Brass Threaded Inserts Kit 200Pcs (M3x4x4.2mm) | Heat Set for 3D Printing
1,420
This item
FFVRVSS M3 Brass Threaded Inserts Kit 200Pcs (M3x4x4.2mm) | Heat Set for 3D Printing
1,420
Total price:
5,020
You save 2,270 (31%) Extra3 items selected
3 items
5,020You save 2,270 (31%) Extra
| Attributes |  |  | |||||
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 1,420 2,040 | 1,800 2,380 | 1,800 2,870 | 1,420 2,040 | 1,610 2,310 | 1,990 2,750 | 3,530 5,450 |
| Rating | 5.00(1) | 4.80(225) | 4.60(180) | 4.60(47) | 4.60(47) | 4.67(3) | 4.50(1,036) |
| Brand Name | FFVRVSS | PEUTIER | FFVRVSS | FFVRVSS | FFVRVSS | FFVRVSS | Quartet |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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