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KM Locking Nuts

KM Locking Nuts are often referred to as bearing nuts, shaft nuts of withdrawal nuts.

They are commonly used in conjunction with suitable tab washers to securely locate bearings and other components onto a shaft. They can also be utilised when mounting taper bore bearings onto shafts.

KM Locking Nuts have four equally spaced slots machined into the outer diameter of the nut, enabling the nut to be secured into position using the appropriate tab washer by bending the tab into the slots.

Available from Fastenright in diameters ranging from M10 to M200, with other sizes available to order.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and custom parts made to drawings.

Locking nut diagram image

Technical Data & Available Sizes
Reference d1 (mm) d2 (mm) d3 (mm) h (mm) b (mm) t (mm)
KM 0 M10 x 0.75 18 13.5 4 3 2.0
KM 1 M12 x 1.00 22 17.0 4 3 2.0
KM 2 M15 x 1.00 25 21.0 5 4 2.0
KM 3 M17 x 1.00  28 24.0 5 4 2.0
KM 4 M20 x 1.00 32 26.0 6 4 2.0
KM 5 M25 x 1.50 38 32.0 7 5 2.0
KM 6 M30 x 1.50 45 38.0 7 5 2.0
KM 7 M35 x 1.50 52 44.0 8 5 2.0
KM 8 M40 x 1.50 58 50.0 9 6 2.5
KM 9 M45 x 1.50 65 56.0 10 6 2.5
KM 10 M50 x 1.50 70 61.0 11 6 2.5
KM 11 M55 x 2.00 75 67.0 11 7 3.0
KM 12 M60 x 2.00 80 73.0 11 7 3.0
KM 13 M65 x 2.00 85 79.0 12 7 3.0
KM 14 M70 x 2.00 92 85.0 12 8 3.5
KM 15 M75 x 2.00 98 90.0 13 8 3.5
KM 16 M80 x 2.00 105 95.0 15 8 3.5
KM 17 M85 x 2.00 110 102.0 16 8 3.5
KM 18 M90 x 2.00 120 108.0 16 10 4.0
KM 19 M95 x 2.00 125 113.0 17 10 4.0
KM 20 M100 x 2.00 130 120.0 18 10 4.0
KM 21 M105 x 2.00 140 126.0 18 12 5.0
KM 22 M110 x 2.00 145 133.0 19 12 5.0
KM 23 M115 x 2.00 150 137.0 19 12 5.0
KM 24 M120 x 2.00 155 138.0 20 12 5.0
KM 25 M125 x 2.00 160 148.0 21 12 5.0
KM 26 M130 x 2.00 165 149.0 21 12 5.0
KM 27 M135 x 2.00 165 149.0 21 12 5.0
KM 28 M140 x 2.00 180 160.0 22 14 6.0
KM 29 M145 x 2.00 190 171.0 24 14 6.0
KM 30 M150 x 2.00 195 171.0 24 14 6.0
KM 31 M155 x 3.00 200 182.0 28 16 7.0
KM 32 M160 x 3.00 210 182.0 25 16 7.0
KM 33 M165 x 3.00 210 193.0 26 16 7.0
KM 34 M170 x 3.00 220 193.0 26 16 7.0
KM 36 M180 x 3.00 230 203.0 27 18 8.0
KM 38 M190 x 3.00 240 214.0 28 18 8.0
KM 40 M200 x 3.00 250 226.0 29 18 8.0
Size not listed? Please contact us – we may be able to provide it.

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