Material Selection :
PEEK (Long-term use temperature 240℃) :
PEEK is a semi-crystalline engineering plastic, suitable for applications that used in high temperature, chemical solvent process. PEEK material is tough, rigid, creep-resistant, light-resistant, and multi-ray resistant. Screws, nuts, and various spare parts made of this material are widely used in semiconductor equipment, aerospace vehicle industry, automotive electronics and motor industry, oil/gas extraction equipment and even medical equipment or food production equipment.
PPS (Long-term use temperature 200℃) :
PPS is a thermoplastic special engineering plastic, featuring high temperature resistance, corrosion resistance and high mechanical strength. In addition, it has electrical properties and dimensional stability which allows PPS-made parts suitable for electronic and electrical parts, auto parts, and chemical machinery parts.
PVDF (Long-term use temperature 150℃) :
PVDF is a thermoplastic fluoropolymer with excellent chemical resistance, weather resistance, high temperature resistance, electrical insulation, lubrication, and wear resistance; it is suitable for various environments of acid-base solvent, semiconductor manufacturing processes, wet chemical processes, and equipment parts in the chemical industry.
PP (Long-term use temperature 90℃) :
PP features excellent stretchability, chemical resistance, hydrolysis resistance, electrical properties, and is suitable for use in various chemical environments, food production equipment and pharmaceutical machinery parts.
PTFE (Long-term use temperature -190~260℃) :
PTFE is one of the fluorine-based resins, which is resistant to most chemicals and solvents. Due to excellent electrical properties, non-stick and lubricity, it is widely used in high temperature, chemical, electrical, mechanical and aviation fields.
NYLON (Long-term use temperature 70℃) :
Nylon plastic has heat resistance, high hardness, wear resistance, and low friction coefficient; it is suitable for parts in mechanical engineering, food technology, electronics aviation, aerospace technology, and automotive industry.
TPI Self-lubricating (Long-term use temperature -269~280℃) :
TPI has excellent high-temperature resistant, wear resistance and friction performance under high pressure and high-speed scraping. Low gas performance under high vacuum state, excellent chemical resistance and mechanical properties, extraordinary dimensional stability, and low electrical conductivity.
POM (Long-term use temperature 100℃) :
Also known as plastic steel with high rigidity, low friction, and dimensional stability. Resistant to most chemical solvents (non-acidic) and oils.

The table below lists standard metric dimensions in millimeters (I.D. × O.D. × Length). For customized sizes or special requirements, please contact us.
| d (I.D./mm) | D (O.D./mm) | L (Length/mm) |
|---|---|---|
| 1.5 | 4 | 2.1 |
| 1.5 | 4 | 4.2 |
| 1.5 | 4 | 4.4 |
| 2 | 5 | 4.8 |
| 3 | 6 | 5 |
| 4 | 7 | 6 |
| 5 | 8 | 6 |
| 6 | 9 | 8 |
| 7 | 11 | 8 |
| 8 | 12 | 8 |
| 9 | 13 | 10 |
| 10 | 14 | 10 |
| 15 | 20 | 30 |
| 17 | 23 | 15 |
| 20 | 40 | 50.5 |
| 22 | 28 | 20 |
| 30 | 36 | 30 |
| 35.2 | 50.5 | 50 |
| 50.2 | 70.5 | 50 |
| 65.2 | 85.5 | 70 |
| 80.2 | 100 | 80 |