One-Piece Industry Standard Clamping Coupling with or without Keyway

M2C-Series : Metric Two-Piece Clamping Collar


Design fully engages the shaft without marring or other damage. Two-piece collars are easily installed where major disassembly would otherwise be required. Greater axial holding power than set screw collars. Effective on hard and soft shafts.


Bore Sizes: 3mm through 80mm
Available in:
Stainless Steel
Steel-Black Oxide Finish


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 Black Oxide Steel Stainless Steel Bore Size(mm) OD (Inch) Width (mm) Clamp Screw Box Qty Weight*
M2C-03 M2C-03-S 3  11/16 9 M 3 100 0.4
M2C-04 M2C-04-S 4  11/16 9 M 3 100 0.4
M2C-05 M2C-05-S 5  11/16 9 M 3 100 0.4
M2C-06 M2C-06-S 6   3/4  9 M 3 100 0.46
M2C-07 M2C-07-S 7   3/4  9 M 3 100 0.43
M2C-08 M2C-08-S 8 1      9 M 3 100 0.9
M2C-09 M2C-09-S 9 1       9 M 3 50 0.81
M2C-10 M2C-10-S 10 1       9 M 3 50 0.8
M2C-12 M2C-12-S 12 1  1/8  11 M 4 50 1.31
M2C-13 M2C-13-S 13 1  1/4  11 M 4 50 1.5
M2C-14 M2C-14-S 14 1  1/4  11 M 4 50 1.5
M2C-15 M2C-15-S 15 1  3/8  13 M 5 50 2.3
M2C-16 M2C-16-S 16 1  3/8  13 M 5 50 2.25
M2C-17 M2C-17-S 17 1  1/2  13 M 5 50 2.6
M2C-18 M2C-18-S 18 1  1/2  13 M 5 50 2.4
M2C-19 M2C-19-S 19 1  5/8  15 M 6 50 3.61
M2C-20 M2C-20-S 20 1  5/8  15 M 6 50 3.41
M2C-21 M2C-21-S 21 1  3/4  15 M 6 50 3.9
M2C-22 M2C-22-S 22 1  3/4  15 M 6 25 3.71
M2C-23 M2C-23-S 23 1  7/8  15 M 6 25 4.45
M2C-24 M2C-24-S 24 1  7/8  15 M 6 25 4.2
M2C-25 M2C-25-S 25 1  7/8  15 M 6 25 4.8
M2C-26   26 2       15 M 6 25 4
M2C-28   28 2      15 M 6 25 4.4
M2C-30 M2C-30-S 30 2  1/8  15 M 6 25 5.9
M2C-32   32 2  1/8  15 M 6 25 5.5
M2C-34   34 2 1/4  15 M 6 25 6.11
M2C-35 M2C-35-S 35 2  1/4  15 M 6 25 5.9
M2C-36   36 2  1/4  15 M 6 25 5.7
M2C-38   38 2  3/8  15 M 6 25 6.31
M2C-40 M2C-40-S 40 2  3/8  15 M 6 25 5.7
M2C-42   42 2  7/8  19 M 8 10 13.5
M2C-45 M2C-45-S 45 2  7/8  19 M 8 10 12.5
M2C-48   48 3  1/8  19 M 8 10 14.1
M2C-50 M2C-50-S 50 3  1/8  19 M 8 5 13.5
M2C-54   54 3  1/4  19 M 8 5 14.3
M2C-55 M2C-55-S 55 3  1/4  19 M 8 5 14
M2C-60 M2C-60-S 60 3  1/2  19 M 8 5 15.5
M2C-65 M2C-65-S 65 3  3/4  19 M 8 5 16.7
M2C-70 M2C-70-S 70 4    19 M 8 5 17.7
M2C-75 M2C-75-S 75 4  1/4  19 M 8 5 18.8
M2C-80 M2C-80-S 80 4  1/4  19 M 8 5 19.7

DIMENSION - BORE, INCH
TOLERANCE +.08mm/-.00mm
* Weights as noted are approximate