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Professional API Thread Protectors – Safeguarding the Safety and Performance of Your Tubular Goods

Our company specializes in producing high-strength thread protectors that fully comply with API standards, delivering precise protection for tubing, casing, drill pipe, and other oilfield tubular goods. Manufactured from premium metal or engineering plastic materials, our API thread protectors offer excellent corrosion and impact resistance, ensuring threads remain protected from damage and contamination during transportation and storage. All products are rigorously engineered to meet API 5CT, API 5B, and related specifications, compatible with a wide range of pipe thread types, and can be optionally fitted with sealing rings to further enhance dust and moisture resistance.

Our protectors are robustly designed for secure and easy installation, effectively reducing thread maintenance costs and extending the service life of your tubular goods. As a reliable solution for efficient drilling operations, we welcome your inquiries and partnership to provide professional-grade protection for your tubular equipment.

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API thread protector against a white background

Category

Drill pipe thread protector

Steel-plastic thread protector for oil casing and tubing

Tubing and casing All-plastic thread protector

Casing and tubing bumper ring

Features & Advantages

  • Strictly compliant with API 5CT, API 5B, and other standards, ensuring perfect compatibility with all types of tubing, casing, and drill pipe threads.
  • Manufactured from premium metal (aluminum/steel) or engineering plastic, offering excellent impact and wear resistance to effectively prevent thread damage during transportation and storage.
  • Can be used in conjunction with casing and tubing bumper ring to effectively separate steel pipes and prevent friction or collision between them.
  • Available with API and special thread connections.
  • Recommended for long-term storage, extreme handling, and transportation, particularly in offshore environments.
  • Engineered for extreme weather conditions; tested from -46 °C to 66 °C.

Specifications

  • Material: All-plastic or Steel-plastic.
  • Applicable pipe types: Drill pipe, tubing, casing.
  • Sizes: Available from 2-3/8" to 20".
  • Thread types: BTC, LTC, STC, NC, FH, REG, NUE, EUE, etc. (per API standards); special threads also available.
  • Color: Customizable accordiing to client specifications.
Table 1: Drill Pipe Thread Protector Specifications
Nominal Outside Diameter Thread Type
NC FH REG PAC H90
2-3/8" – – All-plastic All-plastic –
2-7/8" – – All-plastic All-plastic –
3-1/2" – – All-plastic – –
4" – All-plastic – – –
4-1/2" – – All-plastic – –
5-1/2" – All-plastic – – –
6-5/8" – All-plastic All-plastic – All-plastic
7-5/8" – – All-plastic – All-plastic
8-5/8" – – All-plastic – –
Table 2: Other All-plastic Drill Pipe Thread Protectors
XT39 XT39
NC23 XT54
NC26（(2 3/8"IF) XT57
NC31 (2 7/8"IF) TT39
NC35 2 7/8IF DSTJ
NC38 (3 1/2"IF) 3 1/2IF VAM EIS
NC40 4 1/2IF VAM EIS
NC46 (4"IF) 4 FH VAM EIS
NC50 (4 1/2"IF) 5 1/2FH VAM EIS
HT55 6 5/8FH VAM EIS
Table 3: Tubing Thread Protector Specifications
Nominal Outside Diameter Thread Type
NUE EUE Premium Thread
1.6" All-plastic All-plastic Customizable
1.9" All-plastic All-plastic
2-3/8" All-plastic All-plastic
2-7/8" All-plastic All-plastic
3-1/2" All-plastic All-plastic
4" Steel-plastic –
4-1/2" All-plastic, Steel-plastic All-plastic, Steel-plastic
Table 4: Casing Thread Protector Specifications
Nominal Outside Diameter Thread Type
SC LC BC Premium Thread
4-1/2" All-plastic, Steel-plastic All-plastic, Steel-plastic All-plastic, Steel-plastic Customizable
5" Steel-plastic All-plastic, Steel-plastic All-plastic, Steel-plastic
5-1/2" All-plastic, Steel-plastic All-plastic, Steel-plastic All-plastic, Steel-plastic
6-5/8" – All-plastic, Steel-plastic All-plastic, Steel-plastic
7" All-plastic, Steel-plastic All-plastic, Steel-plastic All-plastic, Steel-plastic
7-5/8" – Steel-plastic Steel-plastic
8-5/8" – – –
9-5/8" Steel-plastic Steel-plastic Steel-plastic
11-3/4" Steel-plastic – Steel-plastic
13-3/8" Steel-plastic – Steel-plastic
16" – – –
18-5/8" – – –
20" Steel-plastic – Steel-plastic

Application & Others

API thread protectors in warehouse
Packaged API thread protectors
API thread protectors in solid wood crates
API thread protector installed on casing

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If you need to consult the price, please contact the business department by E-mail: sales@drinol.com

When you contact us, please provide your detail requirements. That will help us give you a valid quotation.

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