Casing Drill Pipe Plastic Thread Protectors Injection Molded
Injection-Molded Plastic Thread Protectors for Casing and Drill Pipe
Plastic thread protectors cover the specified pipe-end connection during handling, transportation and storage. Order pin and box protectors separately and confirm the complete thread designation, pipe size and end geometry before selecting a part.
For casing, tubing or drill-pipe handling, specify the connection to be protected and the exposure conditions. HDPE and ABS options are reviewed individually for the required fit, temperature and handling performance. Reuse depends on inspection and the agreed acceptance criteria.
Plastic and metal-plastic composite protectors are different constructions. Select the required construction from the pipe-handling specification; material choice, retention and protection requirements are confirmed for the particular connection.
Size references in inches: 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, 8-5/8, 9-5/8, 10-3/4, 11-3/4, 13-3/8, 16 and 20. Connection references include NC26, NC38, NC50, 4-1/2 REG, 3-1/2 REG, 6-5/8 REG and 7-5/8 REG; casing thread references include BTC, STC and LTC. Specify the exact size/connection combination and pin or box end; these designations are not interchangeable.
Packaging & Shipping
| Port: | Shanghai |
| MOQ: | 1000 pcs,Custom parts: 5000pcs |
| Packing: | bulk packing or custom packing |
| Payment: | PayPal, Credit card, T/T, Western Union, L/C |
| Delivery time: | Depend on the qulity |
FAQ
1. What identifies the correct protector?
Provide the full connection designation, pipe size and pin or box end. Include an approved connection drawing or identified sample when the end geometry is custom.
Nominal pipe diameter alone is insufficient: confirm thread engagement, shoulder clearance and protected-end coverage.
2. What should be reviewed for injection molding?
a. The selected HDPE or ABS grade and required color.
b. Thread and locating dimensions with tolerances.
c. Molded wall sections and any ribs or gripping features.
d. Acceptable parting lines, flash and surface condition.
e. Required fitting and removal method.
f. Part identification and any molded or printed logo.
g. Trial-fit and inspection criteria before production approval.
3. How are handling requirements specified?
1. Define the transport and storage conditions.
2. State temperature and relevant chemical exposure.
3. Agree retention and removal requirements.
4. Specify any impact or handling test and its acceptance criteria.
5. Inspect reused protectors for thread damage, cracking and fit against agreed limits.
4. What should accompany a mixed-size order?
1. A separate size and connection designation for each line.
2. Pin and box quantities identified separately.
3. Material grade, color and construction for each configuration.
4. Packing labels and part identification requirements.
5. Approved drawings and required inspection records.
For casing and drill-pipe plastic protector enquiries, send the exact connection designations, pin/box quantities and handling requirements. Any standards-conformity requirement needs specific acceptance criteria and records.
Custom protectors can be reviewed from a drawing or identified sample. Confirm the thread fit and end coverage before production approval.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.


