Threaded Tube Inserts

Square Threaded Tube Inserts

Expanding inserts use the Rawlplug effect: two moulded nylon pieces with hex nuts inside tapered cavities. Tightening a bolt presses the nuts downward, expanding the outer walls to grip the tube. Expanding inserts are made with mild steel zinc plated threads as standard, also available in stainless steel 304 or 316 (marine grade); load capacity is 300kg for expanding inserts. Thread stop is the distance from the top of the insert head to the end of the female thread inside the insert.

Need help choosing?

Tell us the load, thread length, thread size, base diameter, tilt type, and material.

Showing 101 of 101 products

M6 16x16x1-2mm Threaded Tube Insert (STTi-5850)

Thread
M6
Tube size
16 x 16 mm
Wall thickness
1-2 mm
Max static load
50 kg
Housing
PE
Thread material
MSZP
Flexliner SETi-5609 product photo

M6 20x20x1.6mm Threaded Tube Insert (SETi-5609)

Thread
M6
Tube size
20 x 20 mm
Wall thickness
1.6 mm
Max static load
100 kg
Housing
PA
Thread material
MSZP

M6 20x20x1.6-2mm Threaded Tube Insert (STTi-5613)

Thread
M6
Tube size
20 x 20 mm
Wall thickness
1.6-2 mm
Max static load
100 kg
Housing
PA
Thread material
MSZP
Flexliner STTi-5610 product photo

M8 16x16x1-1.6mm Threaded Tube Insert (STTi-5610)

Thread
M8
Tube size
16 x 16 mm
Wall thickness
1-1.6 mm
Max static load
50 kg
Housing
PE
Thread material
PE
Flexliner STTi-5611 product photo

M8 19x19x1.2mm Threaded Tube Insert (STTi-5611)

Thread
M8
Tube size
19 x 19 mm
Wall thickness
1.2 mm
Max static load
150 kg
Housing
HIPS
Thread material
HIPS
STTi-5612 Square Threaded Tube Inserts product image

M8 19x19x1.6mm Threaded Tube Insert (STTi-5612)

Thread
M8
Tube size
19 x 19 mm
Wall thickness
1.6 mm
Max static load
150 kg
Housing
HIPS
Thread material
HIPS
Flexliner SETi-5858 product photo

M8 20x20x1.6mm Threaded Tube Insert (SETi-5858)

Thread
M8
Tube size
20 x 20 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner STTi-5851 product photo

M8 20x20x1.6-2mm Threaded Tube Insert (STTi-5851)

Thread
M8
Tube size
20 x 20 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5617 Square Threaded Tube Inserts product image

M8 22x22x1.6mm Threaded Tube Insert (SETi-5617)

Thread
M8
Tube size
22 x 22 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner STTi-5785 product photo

M8 22x22x1.6-2mm Threaded Tube Insert (STTi-5785)

Thread
M8
Tube size
22 x 22 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5620 Square Threaded Tube Inserts product image

M8 25x25x1.6mm Threaded Tube Insert (SETi-5620)

Thread
M8
Tube size
25 x 25 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STTi-5673 Square Threaded Tube Inserts product image

M8 25x25x2.5-3mm Threaded Tube Insert (STTi-5673)

Thread
M8
Tube size
25 x 25 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5852 Square Threaded Tube Inserts product image

M8 25x25x1.6-2mm Threaded Tube Insert (STTi-5852)

Thread
M8
Tube size
25 x 25 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5622 Square Threaded Tube Inserts product image

M8 25.4x25.4x1.2-1.6mm Threaded Tube Insert (STTi-5622)

Thread
M8
Tube size
25.4 x 25.4 mm
Wall thickness
1.2-1.6 mm
Max static load
150 kg
Housing
PP
Thread material
PP
Flexliner STTi-5623 product photo

M8 25.4x25.4x1.6mm Threaded Tube Insert (STTi-5623)

Thread
M8
Tube size
25.4 x 25.4 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
MS
Thread material
MSZP
SETi-5629 Square Threaded Tube Inserts product image

M8 30x30x1.6mm Threaded Tube Insert (SETi-5629)

Thread
M8
Tube size
30 x 30 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner SETi-5630 product photo

M8 30x30x2mm Threaded Tube Insert (SETi-5630)

Thread
M8
Tube size
30 x 30 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner STTi-5628 product photo

M8 30x30x1.6-2mm Threaded Tube Insert (STTi-5628)

Thread
M8
Tube size
30 x 30 mm
Wall thickness
1.6-2 mm
Max static load
300 kg
Housing
HIPS
Thread material
PA
STTi-5674 Square Threaded Tube Inserts product image

M8 30x30x2.5-3mm Threaded Tube Insert (STTi-5674)

Thread
M8
Tube size
30 x 30 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5639 Square Threaded Tube Inserts product image

M8 32x32x1.6-2mm Threaded Tube Insert (STTi-5639)

Thread
M8
Tube size
32 x 32 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5768 Square Threaded Tube Inserts product image

M8 32x32x1.2-2mm Threaded Tube Insert (STTi-5768)

Thread
M8
Tube size
32 x 32 mm
Wall thickness
1.2-2 mm
Max static load
300 kg
Housing
PA
Thread material
PA
STTi-5864 Square Threaded Tube Inserts product image

M8 32x32x1.6mm Threaded Tube Insert (STTi-5864)

Thread
M8
Tube size
32 x 32 mm
Wall thickness
1.6 mm
Max static load
200 kg
Housing
HIPS
Thread material
HIPS
STTi-5408 Square Threaded Tube Inserts product image

M8 35x35x1.6-2mm Threaded Tube Insert (STTi-5408)

Thread
M8
Tube size
35 x 35 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5410 Square Threaded Tube Inserts product image

M8 38x38x1.6-2mm Threaded Tube Insert (STTi-5410)

Thread
M8
Tube size
38 x 38 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5414 Square Threaded Tube Inserts product image

M8 40x40x1.6-2mm Threaded Tube Insert (STTi-5414)

Thread
M8
Tube size
40 x 40 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5676 Square Threaded Tube Inserts product image

M8 40x40x2.5-3mm Threaded Tube Insert (STTi-5676)

Thread
M8
Tube size
40 x 40 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5672 Square Threaded Tube Inserts product image

M8 50x50x2.5-3mm Threaded Tube Insert (STTi-5672)

Thread
M8
Tube size
50 x 50 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5849 Square Threaded Tube Inserts product image

M8 50x50x1.6-2mm Threaded Tube Insert (STTi-5849)

Thread
M8
Tube size
50 x 50 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5614 Square Threaded Tube Inserts product image

M10 20x20x1.6-2mm Threaded Tube Insert (STTi-5614)

Thread
M10
Tube size
20 x 20 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5615 Square Threaded Tube Inserts product image

M10 20x20x1.6-2mm Threaded Tube Insert (STTi-5615)

Thread
M10
Tube size
20 x 20 mm
Wall thickness
1.6-2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5649 Square Threaded Tube Inserts product image

M10 22x22x1.6mm Threaded Tube Insert (SETi-5649)

Thread
M10
Tube size
22 x 22 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
PA
STTi-5618 Square Threaded Tube Inserts product image

M10 22x22x1.6-2mm Threaded Tube Insert (STTi-5618)

Thread
M10
Tube size
22 x 22 mm
Wall thickness
1.6-2 mm
Max static load
100 kg
Housing
PA
Thread material
PA
SETi-5801 Square Threaded Tube Inserts product image

M10 25x25x1.6mm Threaded Tube Insert (SETi-5801)

Thread
M10
Tube size
25 x 25 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M10 25x25x1.6mm Threaded Tube Insert (SETS-5808)

Thread
M10
Tube size
25 x 25 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
Flexliner STTi-5853 product photo

M10 25x25x1.6-2mm Threaded Tube Insert (STTi-5853)

Thread
M10
Tube size
25 x 25 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5624 Square Threaded Tube Inserts product image

M10 25.4x25.4x1.2mm Threaded Tube Insert (STTi-5624)

Thread
M10
Tube size
25.4 x 25.4 mm
Wall thickness
1.2 mm
Max static load
350 kg
Housing
MS
Thread material
MSZP
SETi-5810 Square Threaded Tube Inserts product image

M10 30x30x1.6mm Threaded Tube Insert (SETi-5810)

Thread
M10
Tube size
30 x 30 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner SETi-5859 product photo

M10 30x30x2mm Threaded Tube Insert (SETi-5859)

Thread
M10
Tube size
30 x 30 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STTi-5854 Square Threaded Tube Inserts product image

M10 30x30x1.6-2mm Threaded Tube Insert (STTi-5854)

Thread
M10
Tube size
30 x 30 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA

M10 30x30x2.5-3mm Threaded Tube Insert (STTi-5863)

Thread
M10
Tube size
30 x 30 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5406 Square Threaded Tube Inserts product image

M10 32x32x2mm Threaded Tube Insert (SETi-5406)

Thread
M10
Tube size
32 x 32 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5789 Square Threaded Tube Inserts product image

M10 32x32x1.2-1.6mm Threaded Tube Insert (SETi-5789)

Thread
M10
Tube size
32 x 32 mm
Wall thickness
1.2-1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M10 32x32x1.2-1.6mm Threaded Tube Insert (SETS-5787)

Thread
M10
Tube size
32 x 32 mm
Wall thickness
1.2-1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
STTi-5405 Square Threaded Tube Inserts product image

M10 32x32x1.6-2mm Threaded Tube Insert (STTi-5405)

Thread
M10
Tube size
32 x 32 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
Flexliner STTi-5867 product photo

M10 32x32x1.2mm Threaded Tube Insert (STTi-5867)

Thread
M10
Tube size
32 x 32 mm
Wall thickness
1.2 mm
Max static load
250 kg
Housing
HIPS
Thread material
HIPS
SETi-5740 Square Threaded Tube Inserts product image

M10 35x35x1.6mm Threaded Tube Insert (SETi-5740)

Thread
M10
Tube size
35 x 35 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5811 Square Threaded Tube Inserts product image

M10 35x35x2mm Threaded Tube Insert (SETi-5811)

Thread
M10
Tube size
35 x 35 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STTi-5855 Square Threaded Tube Inserts product image

M10 35x35x1.6-2mm Threaded Tube Insert (STTi-5855)

Thread
M10
Tube size
35 x 35 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5805 Square Threaded Tube Inserts product image

M10 38x38x1.6mm Threaded Tube Insert (SETi-5805)

Thread
M10
Tube size
38 x 38 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M10 38x38x1.6mm Threaded Tube Insert (SETS-5813)

Thread
M10
Tube size
38 x 38 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
Flexliner STTi-5411 product photo

M10 38x38x1.6-2mm Threaded Tube Insert (STTi-5411)

Thread
M10
Tube size
38 x 38 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5415 Square Threaded Tube Inserts product image

M10 40x40x2mm Threaded Tube Insert (SETi-5415)

Thread
M10
Tube size
40 x 40 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5812 Square Threaded Tube Inserts product image

M10 40x40x1.6mm Threaded Tube Insert (SETi-5812)

Thread
M10
Tube size
40 x 40 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STHi-5677 Square Threaded Tube Inserts product image

M10 40x40x2.5-3mm Threaded Tube Insert (STHi-5677)

Thread
M10
Tube size
40 x 40 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5856 Square Threaded Tube Inserts product image

M10 40x40x1.6-2mm Threaded Tube Insert (STTi-5856)

Thread
M10
Tube size
40 x 40 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5779 Square Threaded Tube Inserts product image

M10 50x50x2mm Threaded Tube Insert (SETi-5779)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5795 Square Threaded Tube Inserts product image

M10 50x50x1.6mm Threaded Tube Insert (SETi-5795)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M10 50x50x2mm Threaded Tube Insert (SETi-5869)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M10 50x50x1.6mm Threaded Tube Insert (SETS-5788)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
STHi-5688 Square Threaded Tube Inserts product image

M10 50x50x2.5-3mm Threaded Tube Insert (STHi-5688)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5419 Square Threaded Tube Inserts product image

M10 50x50x2.5mm Threaded Tube Insert (STTi-5419)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
2.5 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner STTi-5857 product photo

M10 50x50x1.6-2mm Threaded Tube Insert (STTi-5857)

Thread
M10
Tube size
50 x 50 mm
Wall thickness
1.6-2 mm
Max static load
300 kg
Housing
PA
Thread material
PA
SETi-5782 Square Threaded Tube Inserts product image

M10 50.8x50.8x1.6mm Threaded Tube Insert (SETi-5782)

Thread
M10
Tube size
50.8 x 50.8 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M10 50.8x50.8x1.6mm Threaded Tube Insert (SETS-5421)

Thread
M10
Tube size
50.8 x 50.8 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
Flexliner STTi-5616 product photo

M12 20x20x1.6-2mm Threaded Tube Insert (STTi-5616)

Thread
M12
Tube size
20 x 20 mm
Wall thickness
1.6-2 mm
Max static load
100 kg
Housing
PA
Thread material
PA
STTi-5619 Square Threaded Tube Inserts product image

M12 22x22x1.6-2mm Threaded Tube Insert (STTi-5619)

Thread
M12
Tube size
22 x 22 mm
Wall thickness
1.6-2 mm
Max static load
150 kg
Housing
PA
Thread material
PA
Flexliner SETi-5802 product photo

M12 25x25x1.6mm Threaded Tube Insert (SETi-5802)

Thread
M12
Tube size
25 x 25 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STTi-5626 Square Threaded Tube Inserts product image

M12 25x25x1.6-2mm Threaded Tube Insert (STTi-5626)

Thread
M12
Tube size
25 x 25 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5425 Square Threaded Tube Inserts product image

M12 25.4x25.4x1.6-2mm Threaded Tube Insert (STTi-5425)

Thread
M12
Tube size
25.4 x 25.4 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5821 Square Threaded Tube Inserts product image

M12 30x30x1.6mm Threaded Tube Insert (SETi-5821)

Thread
M12
Tube size
30 x 30 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner STTi-5633 product photo

M12 30x30x1.6-2mm Threaded Tube Insert (STTi-5633)

Thread
M12
Tube size
30 x 30 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5634 Square Threaded Tube Inserts product image

M12 30x30x2-2.5mm Threaded Tube Insert (STTi-5634)

Thread
M12
Tube size
30 x 30 mm
Wall thickness
2-2.5 mm
Max static load
200 kg
Housing
PA
Thread material
PA
Flexliner SETi-5804 product photo

M12 32x32x1.6mm Threaded Tube Insert (SETi-5804)

Thread
M12
Tube size
32 x 32 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M12 32x32x1.6mm Threaded Tube Insert (SETS-5638)

Thread
M12
Tube size
32 x 32 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
STTi-5407 Square Threaded Tube Inserts product image

M12 32x32x1.6-2mm Threaded Tube Insert (STTi-5407)

Thread
M12
Tube size
32 x 32 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5739 Square Threaded Tube Inserts product image

M12 35x35x1.6mm Threaded Tube Insert (SETi-5739)

Thread
M12
Tube size
35 x 35 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5784 Square Threaded Tube Inserts product image

M12 35x35x2mm Threaded Tube Insert (SETi-5784)

Thread
M12
Tube size
35 x 35 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STTi-5409 Square Threaded Tube Inserts product image

M12 35x35x1.6-2mm Threaded Tube Insert (STTi-5409)

Thread
M12
Tube size
35 x 35 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5807 Square Threaded Tube Inserts product image

M12 38x38x1.6mm Threaded Tube Insert (SETi-5807)

Thread
M12
Tube size
38 x 38 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M12 38x38x1.6mm Threaded Tube Insert (SETS-5413)

Thread
M12
Tube size
38 x 38 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
STTi-5412 Square Threaded Tube Inserts product image

M12 38x38x1.6-2mm Threaded Tube Insert (STTi-5412)

Thread
M12
Tube size
38 x 38 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5871 Square Threaded Tube Inserts product image

M12 38x38x2.5mm Threaded Tube Insert (STTi-5871)

Thread
M12
Tube size
38 x 38 mm
Wall thickness
2.5 mm
Max static load
300 kg
Housing
HIPS
Thread material
HIPS
SETi-5423 Square Threaded Tube Inserts product image

M12 40x40x2mm Threaded Tube Insert (SETi-5423)

Thread
M12
Tube size
40 x 40 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5783 Square Threaded Tube Inserts product image

M12 40x40x1.6mm Threaded Tube Insert (SETi-5783)

Thread
M12
Tube size
40 x 40 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STHi-5681 Square Threaded Tube Inserts product image

M12 40x40x2.5-3mm Threaded Tube Insert (STHi-5681)

Thread
M12
Tube size
40 x 40 mm
Wall thickness
2.5-3 mm
Max static load
200 kg
Housing
PA
Thread material
PA
STTi-5418 Square Threaded Tube Inserts product image

M12 40x40x1.6-2mm Threaded Tube Insert (STTi-5418)

Thread
M12
Tube size
40 x 40 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5786 Square Threaded Tube Inserts product image

M12 50x50x2mm Threaded Tube Insert (SETi-5786)

Thread
M12
Tube size
50 x 50 mm
Wall thickness
2 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
Flexliner SETi-5796 product photo

M12 50x50x1.6mm Threaded Tube Insert (SETi-5796)

Thread
M12
Tube size
50 x 50 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
SETi-5798 Square Threaded Tube Inserts product image

M12 50x50x2.5-3mm Threaded Tube Insert (SETi-5798)

Thread
M12
Tube size
50 x 50 mm
Wall thickness
2.5-3 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP
STTi-5420 Square Threaded Tube Inserts product image

M12 50x50x1.6-2mm Threaded Tube Insert (STTi-5420)

Thread
M12
Tube size
50 x 50 mm
Wall thickness
1.6-2 mm
Max static load
200 kg
Housing
PA
Thread material
PA
SETi-5794 Square Threaded Tube Inserts product image

M12 50.8x50.8x1.6mm Threaded Tube Insert (SETi-5794)

Thread
M12
Tube size
50.8 x 50.8 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
MSZP

M12 50.8x50.8x1.6mm Threaded Tube Insert (SETS-5422)

Thread
M12
Tube size
50.8 x 50.8 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
SS304
Flexliner STTi-5627 product photo

M16 25x25x1.6-2mm Threaded Tube Insert (STTi-5627)

Thread
M16
Tube size
25 x 25 mm
Wall thickness
1.6-2 mm
Max static load
150 kg
Housing
PA
Thread material
PA

M16 25x25x1.6mm Threaded Tube Insert (STTS-5803s4)

Thread
M16
Tube size
25 x 25 mm
Wall thickness
1.6 mm
Max static load
250 kg
Housing
PA
Thread material
SS304

M16 25.4x25.4x1.6mm Threaded Tube Insert (STTi-5426)

Thread
M16
Tube size
25.4 x 25.4 mm
Wall thickness
1.6 mm
Max static load
300 kg
Housing
PA
Thread material
PA
STTi-5636 Square Threaded Tube Inserts product image

M16 30x30x1.6-2mm Threaded Tube Insert (STTi-5636)

Thread
M16
Tube size
30 x 30 mm
Wall thickness
1.6-2 mm
Max static load
150 kg
Housing
PA
Thread material
PA

M16 30x30x3mm Threaded Tube Insert (STTi-5637)

Thread
M16
Tube size
30 x 30 mm
Wall thickness
3 mm
Max static load
150 kg
Housing
PA
Thread material
PA

M16 32x32x1.6-2mm Threaded Tube Insert (STTS-5806s4)

Thread
M16
Tube size
32 x 32 mm
Wall thickness
1.6-2 mm
Max static load
350 kg
Housing
PA
Thread material
SS304
STTi-5424 Square Threaded Tube Inserts product image

M16 40x40x1.6-2mm Threaded Tube Insert (STTi-5424)

Thread
M16
Tube size
40 x 40 mm
Wall thickness
1.6-2 mm
Max static load
150 kg
Housing
PA
Thread material
PA
Flexliner STTi-5799 product photo

M16 50x50x1.6-2mm Threaded Tube Insert (STTi-5799)

Thread
M16
Tube size
50 x 50 mm
Wall thickness
1.6-2 mm
Max static load
150 kg
Housing
PA
Thread material
PA

M20 50.8x50.8x1.6-2mm Threaded Tube Insert (SLTi-5818)

Thread
M20
Tube size
50.8 x 50.8 mm
Wall thickness
1.6-2 mm
Max static load
750 kg
Housing
PA
Thread material
BrassNP

How to choose Square Threaded Tube Inserts

101 products
  • Compare thread sizes, 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

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