Threaded Tube Inserts

Round Threaded Tube Inserts

Round threaded tube inserts for 100-300kg maximum loads.

95 SKUs5 ranges

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How to choose Round Threaded Tube Inserts

95 SKUs
  • Compare thread sizes, compatible tube sizes, load ratings before requesting pricing.
  • Use the range and related product links to move between close alternatives without relying on filter-only URLs.
  • Send Flexliner the part number and quantity when the shortlist is ready for quote confirmation.

Applications and Quote Prep

  • Round Threaded Tube Inserts are used where buyers need repeatable support, levelling, tube finishing, or machine setup from a known part number.
  • The visible SKU table supports quoting by keeping commercial identifiers and selection specs on the page.

Showing 95 of 95 SKUs

RETi-5373

Round Ribbed Tube Insert RETi-5373

Thread
M16
Thread length
Load
150 kg
Tilt
Material/finish
Nylon (Polyamide)

RETi-5374

Round Ribbed Tube Insert RETi-5374

Thread
M16
Thread length
Load
150 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RETi-5392 product photo

RETi-5392

Round Expanding Tube Insert RETi-5392

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5396 product photo

RETi-5396

Round Expanding Tube Insert RETi-5396

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5648 product photo

RETi-5648

Round Expanding Tube Insert RETi-5648

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5658 product photo

RETi-5658

Round Expanding Tube Insert RETi-5658

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RETi-5660

Round Expanding Tube Insert RETi-5660

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5664 product photo

RETi-5664

Round Expanding Tube Insert RETi-5664

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5667 Round Threaded Tube Inserts product image

RETi-5667

Round Expanding Tube Insert RETi-5667

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RETi-5735

Round Expanding Tube Insert RETi-5735

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5771 Round Threaded Tube Inserts product image

RETi-5771

Round Expanding Tube Insert RETi-5771

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5790 Round Threaded Tube Inserts product image

RETi-5790

Round Expanding Tube Insert RETi-5790

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5824 product photo

RETi-5824

Round Expanding Tube Insert RETi-5824

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5825 product photo

RETi-5825

Round Expanding Tube Insert RETi-5825

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5826 Round Threaded Tube Inserts product image

RETi-5826

Round Expanding Tube Insert RETi-5826

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5827 Round Threaded Tube Inserts product image

RETi-5827

Round Expanding Tube Insert RETi-5827

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5838 product photo

RETi-5838

Round Expanding Tube Insert RETi-5838

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5861 Round Threaded Tube Inserts product image

RETi-5861

Round Expanding Tube Insert RETi-5861

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5872 Round Threaded Tube Inserts product image

RETi-5872

Round Expanding Tube Insert RETi-5872

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5873 Round Threaded Tube Inserts product image

RETi-5873

Round Expanding Tube Insert RETi-5873

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5874 Round Threaded Tube Inserts product image

RETi-5874

Round Expanding Tube Insert RETi-5874

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5875 Round Threaded Tube Inserts product image

RETi-5875

Round Expanding Tube Insert RETi-5875

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5891 Round Threaded Tube Inserts product image

RETi-5891

Round Expanding Tube Insert RETi-5891

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5892 Round Threaded Tube Inserts product image

RETi-5892

Round Expanding Tube Insert RETi-5892

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5893 product photo

RETi-5893

Round Expanding Tube Insert RETi-5893

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RETi-5894 product photo

RETi-5894

Round Expanding Tube Insert RETi-5894

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-5895 Round Threaded Tube Inserts product image

RETi-5895

Round Expanding Tube Insert RETi-5895

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RETi-6455 Round Threaded Tube Inserts product image

RETi-6455

Round Expanding Tube Insert RETi-6455

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RSPi-5896 product photo

RSPi-5896

Round Plain Tube Insert RSPi-5896

Thread
M16
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5371 Round Threaded Tube Inserts product image

RTTi-5371

Round Ribbed Tube Insert RTTi-5371

Thread
M10
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5375 Round Threaded Tube Inserts product image

RTTi-5375

Round Ribbed Tube Insert RTTi-5375

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5376 Round Threaded Tube Inserts product image

RTTi-5376

Round Ribbed Tube Insert RTTi-5376

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5377 Round Threaded Tube Inserts product image

RTTi-5377

Round Ribbed Tube Insert RTTi-5377

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5378 product photo

RTTi-5378

Round Ribbed Tube Insert RTTi-5378

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5379 Round Threaded Tube Inserts product image

RTTi-5379

Round Ribbed Tube Insert RTTi-5379

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5380 Round Threaded Tube Inserts product image

RTTi-5380

Round Ribbed Tube Insert RTTi-5380

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5381 Round Threaded Tube Inserts product image

RTTi-5381

Round Ribbed Tube Insert RTTi-5381

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RTTi-5382 product photo

RTTi-5382

Round Ribbed Tube Insert RTTi-5382

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5383 product photo

RTTi-5383

Round Ribbed Tube Insert RTTi-5383

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5384 Round Threaded Tube Inserts product image

RTTi-5384

Round Ribbed Tube Insert RTTi-5384

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5385 Round Threaded Tube Inserts product image

RTTi-5385

Round Ribbed Tube Insert RTTi-5385

Thread
M12
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5386 product photo

RTTi-5386

Round Ribbed Tube Insert RTTi-5386

Thread
M10
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5387 product photo

RTTi-5387

Round Plain Tube Insert RTTi-5387

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5388 product photo

RTTi-5388

Round Ribbed Tube Insert RTTi-5388

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5389 Round Threaded Tube Inserts product image

RTTi-5389

Round Plain Tube Insert RTTi-5389

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RTTi-5390 product photo

RTTi-5390

Round Ribbed Tube Insert RTTi-5390

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-5391

Round Ribbed Tube Insert RTTi-5391

Thread
M16
Thread length
Load
150 kg
Tilt
Material/finish
Nylon (Polyamide)

RTTi-5397

Round Ribbed Tube Insert RTTi-5397

Thread
M16
Thread length
Load
150 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5398 Round Threaded Tube Inserts product image

RTTi-5398

Round Ribbed Tube Insert RTTi-5398

Thread
M16
Thread length
Load
150 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5399 product photo

RTTi-5399

Round Ribbed Tube Insert RTTi-5399

Thread
M16
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5640 product photo

RTTi-5640

Round Ribbed Tube Insert RTTi-5640

Thread
M6
Thread length
Load
100 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RTTi-5641 product photo

RTTi-5641

Round Ribbed Tube Insert RTTi-5641

Thread
M8
Thread length
Load
100 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5643 product photo

RTTi-5643

Round Ribbed Tube Insert RTTi-5643

Thread
M8
Thread length
Load
100 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5644 Round Threaded Tube Inserts product image

RTTi-5644

Round Ribbed Tube Insert RTTi-5644

Thread
M6
Thread length
Load
100 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5645 Round Threaded Tube Inserts product image

RTTi-5645

Round Ribbed Tube Insert RTTi-5645

Thread
M8
Thread length
Load
100 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5646 Round Threaded Tube Inserts product image

RTTi-5646

Round Ribbed Tube Insert RTTi-5646

Thread
M6
Thread length
Load
150 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-5653

Round Ribbed Tube Insert RTTi-5653

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5662 Round Threaded Tube Inserts product image

RTTi-5662

Round Expanding Tube Insert RTTi-5662

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RTTi-5666 product photo

RTTi-5666

Round Ribbed Tube Insert RTTi-5666

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5772 Round Threaded Tube Inserts product image

RTTi-5772

Round Ribbed Tube Insert RTTi-5772

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RTTi-5778 product photo

RTTi-5778

Round Ribbed Tube Insert RTTi-5778

Thread
M10
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
Flexliner RTTi-5791 product photo

RTTi-5791

Round Plain Tube Insert RTTi-5791

Thread
M16
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5823 Round Threaded Tube Inserts product image

RTTi-5823

Round Ribbed Tube Insert RTTi-5823

Thread
M10
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5828 Round Threaded Tube Inserts product image

RTTi-5828

Round Ribbed Tube Insert RTTi-5828

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5829 Round Threaded Tube Inserts product image

RTTi-5829

Round Ribbed Tube Insert RTTi-5829

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5830 Round Threaded Tube Inserts product image

RTTi-5830

Round Ribbed Tube Insert RTTi-5830

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5831 Round Threaded Tube Inserts product image

RTTi-5831

Round Ribbed Tube Insert RTTi-5831

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5832 Round Threaded Tube Inserts product image

RTTi-5832

Round Ribbed Tube Insert RTTi-5832

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5833 Round Threaded Tube Inserts product image

RTTi-5833

Round Ribbed Tube Insert RTTi-5833

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-5834 Round Threaded Tube Inserts product image

RTTi-5834

Round Ribbed Tube Insert RTTi-5834

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-5835 Round Threaded Tube Inserts product image

RTTi-5835

Round Ribbed Tube Insert RTTi-5835

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-5836

Round Ribbed Tube Insert RTTi-5836

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
Flexliner RTTi-5837 product photo

RTTi-5837

Round Ribbed Tube Insert RTTi-5837

Thread
M10
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)

RTTi-5850

Round Ribbed Tube Insert RTTi-5850

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-5852

Round Ribbed Tube Insert RTTi-5852

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6440 Round Threaded Tube Inserts product image

RTTi-6440

Round Ribbed Tube Insert RTTi-6440

Thread
M6
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6441 Round Threaded Tube Inserts product image

RTTi-6441

Round Ribbed Tube Insert RTTi-6441

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6442 Round Threaded Tube Inserts product image

RTTi-6442

Round Ribbed Tube Insert RTTi-6442

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6443 Round Threaded Tube Inserts product image

RTTi-6443

Round Ribbed Tube Insert RTTi-6443

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6445

Round Ribbed Tube Insert RTTi-6445

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6446

Round Ribbed Tube Insert RTTi-6446

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6447

Round Ribbed Tube Insert RTTi-6447

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6448 Round Threaded Tube Inserts product image

RTTi-6448

Round Ribbed Tube Insert RTTi-6448

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6449

Round Plain Tube Insert RTTi-6449

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6450

Round Plain Tube Insert RTTi-6450

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide)

RTTi-6451

Round Plain Tube Insert RTTi-6451

Thread
M12
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6452

Round Plain Tube Insert RTTi-6452

Thread
M8
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6453 Round Threaded Tube Inserts product image

RTTi-6453

Round Ribbed Tube Insert RTTi-6453

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6454

Round Ribbed Tube Insert RTTi-6454

Thread
M10
Thread length
Load
300 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6457 Round Threaded Tube Inserts product image

RTTi-6457

Round Ribbed Tube Insert RTTi-6457

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide)
RTTi-6458 Round Threaded Tube Inserts product image

RTTi-6458

Round Ribbed Tube Insert RTTi-6458

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6459 Round Threaded Tube Inserts product image

RTTi-6459

Round Ribbed Tube Insert RTTi-6459

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)
RTTi-6460 Round Threaded Tube Inserts product image

RTTi-6460

Round Ribbed Tube Insert RTTi-6460

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6463

Round Ribbed Tube Insert RTTi-6463

Thread
M8
Thread length
Load
200 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)

RTTi-6464

Round Ribbed Tube Insert RTTi-6464

Thread
M10
Thread length
Load
250 kg
Tilt
Material/finish
Nylon (Polyamide) (Zinc Plated)