FNIRSI HS-02A Electric Soldering Iron Set with Heat Insert Nut Kit M2-M8, C245 Compatible Tips for 3D Printer and DIY Repair Job
SPECIFICATIONS
Brand Name: FNIRSI
Certification: CE
High-concerned chemical: none
Input Voltagle: 9-20V
Model Number: HS-02A
Origin: Mainland China
Output Temperature: 450℃

Key Features:
1. Multi-size Compatibility: Supports various sizes of hot melt nuts — M2 (also fits M2.5), M3, M4, M5, M6, and M8.
2. F245 Tip Compatibility: Fully compatible with standard F245 soldering tips, offering practical and flexible use.
3. Modular Design: Female and sub-head design with a hand-tightened knurled connection. Tips can be easily swapped at room temperature to fit different nut sizes.
4. Premium Brass Build:
Excellent thermal conductivity ensures fast and even heating. Flat end contact prevents nut misalignment and allows precise and efficient embedding into plastic parts.
5. Enhanced Control & Safety:
Optimized insertion depth minimizes surface damage to plastic parts and allows better internal seating without cracking or deformation.

1. Product Name: F245 / HS-02A Hot Melt Nut Insertion Tip Kit
2. Application Scope:
This kit includes soldering tips compatible with the HS-02A soldering pen and interchangeable with standard F245 universal soldering tips. It supports embedding hot melt nuts or inserts in sizes M2 (also suitable for M2.5), M3, M4, M5, M6, and M8. Commonly used for 3D-printed copper nuts or nut inserts in plastic components.
3. Construction & Finish: CNC precision-machined for high accuracy and durability.
4. Material: Both the main tip and sub-head are made of high-quality brass, designed with a 245-core structure.








- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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