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    95 Products

    Tooth Lock Washers

    Grip tighter than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened.
    External Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, External Tooth.
    Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding head screws.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2
    		2.24.50.2 to 0.4DIN 679710095060A51000000
    M2.5
    		2.75.50.3 to 0.5DIN 679710095060A5200000
    M3
    		3.26.00.3 to 0.5DIN 679710095060A3200000
    M3.5
    		3.77.00.4 to 0.6DIN 679710095060A5300000
    M4
    		4.38.00.4 to 0.6DIN 679710095060A3300000
    M5
    		5.310.00.5 to 0.7DIN 679710095060A3500000
    M6
    		6.411.00.6 to 0.8DIN 679710095060A3600000
    M7
    		7.412.50.7 to 0.9DIN 679710095060A4600000
    M8
    		8.415.00.7 to 0.9DIN 679710095060A3900000
    M10
    		10.518.00.8 to 1.0DIN 679710095060A4000000
    M12
    		13.020.50.9 to 1.2DIN 67975095060A4110000
    M14
    		15.024.00.9 to 1.2DIN 67975095060A4200000
    M16
    		17.026.01.0 to 1.4DIN 67975095060A54000000
    M18
    		19.030.01.2 to 1.6DIN 67971095060A4400000
    M20
    		21.033.01.2 to 1.6DIN 67971095060A4500000
    M22
    		23.036.01.3 to 1.7DIN 67971095060A4700000
    M24
    		25.038.01.3 to 1.7DIN 67971095060A4800000
    M30
    		31.048.01.4 to 1.8DIN 67971095060A50000000
     
    Highly Corrosion-Resistant 316 Stainless Steel
    M3
    		3.26.00.3 to 0.5DIN 6797590412A1100000
    M4
    		4.38.00.4 to 0.6DIN 6797590412A1200000
    M5
    		5.310.00.5 to 0.7DIN 6797590412A1300000
    M6
    		6.411.00.6 to 0.8DIN 6797590412A1400000
    M8
    		8.415.00.7 to 0.9DIN 6797590412A1500000
    M10
    		10.518.00.8 to 1.0DIN 6797190412A1600000
    M12
    		13.020.50.9 to 1.2DIN 6797190412A1700000
    M14
    		15.024.00.9 to 1.2DIN 6797190412A1800000
    M16
    		17.326.01.0 to 1.4DIN 6797190412A1900000
    M20
    		21.033.01.2 to 1.6DIN 6797190412A2000000
     
    Zinc-Plated Steel
    M2
    		2.34.50.2 to 0.4DIN 679710097985A1110000
    M2.5
    		2.85.50.3 to 0.5DIN 679710097985A1120000
    M3
    		3.26.00.3 to 0.5DIN 679710097985A5200000
    M3.5
    		3.97.00.9 to 1.2DIN 679710097985A2110000
    M4
    		4.38.00.4 to 0.6DIN 679710097985A5300000
    M5
    		5.310.00.5 to 0.7DIN 679710097985A5500000
    M6
    		6.411.00.6 to 0.8DIN 679710097985A5600000
    M7
    		7.412.50.7 to 0.9DIN 67972597985A1130000
    M8
    		8.415.00.7 to 0.9DIN 679710097985A5900000
    M10
    		10.518.00.8 to 1.0DIN 67975097985A6000000
    M12
    		13.020.50.9 to 1.2DIN 67972597985A6110000
    M14
    		15.024.00.9 to 1.2DIN 67972597985A6200000
    M16
    		17.326.01.0 to 1.4DIN 67972597985A6300000
    M18
    		19.030.01.2 to 1.6DIN 6797597985A6400000
    M20
    		21.033.01.2 to 1.6DIN 6797597985A6500000
    M22
    		23.036.01.3 to 1.7DIN 6797597985A1140000
    M24
    		25.038.01.3 to 1.7DIN 6797597985A6600000
    M30
    		31.048.01.4 to 1.8DIN 6797597985A1160000
     
    Internal Tooth
    Image of Product. Front orientation. Lock Washers. Tooth Washer, Internal Tooth.
    Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Black-Oxide Steel—Best for dry environments since moisture will cause these washers to rust. They have a dark, matte appearance.
    For Screw
    Size
    ID,
    mm
    OD,
    mm
    Thk., mm
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    M2
    		2.24.50.2 to 0.4DIN 679710093925A21000000
    M2.3
    		2.55.00.2 to 0.4DIN 679710093925A4110000
    M2.5
    		2.75.50.2 to 0.5DIN 679710093925A2200000
    M3
    		3.26.00.3 to 0.5DIN 679710093925A2400000
    M3.5
    		3.77.00.4 to 0.6DIN 679710093925A2210000
    M4
    		4.38.00.4 to 0.6DIN 679710093925A2500000
    M5
    		5.310.00.5 to 0.7DIN 679710093925A2600000
    M6
    		6.411.00.6 to 0.8DIN 679710093925A2700000
    M7
    		7.412.50.7 to 0.9DIN 67975093925A41200000
    M8
    		8.415.00.7 to 0.9DIN 679710093925A2800000
    M10
    		10.518.00.8 to 1.0DIN 67975093925A2900000
    M12
    		13.020.50.9 to 1.2DIN 67975093925A3000000
    M14
    		15.024.00.9 to 1.2DIN 67972593925A3100000
    M16
    		17.026.01.0 to 1.4DIN 67972593925A3200000
    M18
    		19.030.01.2 to 1.5DIN 67971093925A3300000
    M20
    		21.033.01.2 to 1.5DIN 67971093925A3400000
    M22
    		23.036.01.3 to 1.6DIN 67971093925A41300000
    M24
    		25.038.01.3 to 1.6DIN 67971093925A41400000
     
    Zinc-Plated Steel
    M2
    		2.24.50.2 to 0.4DIN 679710093925A4150000
    M2.5
    		2.75.50.2 to 0.5DIN 679710093925A4160000
    M3
    		3.26.00.3 to 0.5DIN 679710093925A4170000
    M3.5
    		3.77.00.4 to 0.6DIN 679710093925A4180000
    M4
    		4.38.00.4 to 0.6DIN 679710093925A4190000
    M5
    		5.310.00.5 to 0.7DIN 679710093925A4200000
    M6
    		6.411.00.6 to 0.8DIN 679710093925A4210000
    M7
    		7.412.50.7 to 0.9DIN 679710093925A4220000
    M8
    		8.415.00.7 to 0.9DIN 679710093925A4230000
    M10
    		10.518.00.8 to 1.0DIN 67975093925A4240000
    M12
    		13.020.50.9 to 1.2DIN 67975093925A42500000
    M14
    		15.024.00.9 to 1.2DIN 67972593925A4260000
    M16
    		17.026.01.0 to 1.4DIN 67972593925A4270000
    M18
    		19.030.01.2 to 1.5DIN 67971093925A4280000
    M20
    		21.033.01.2 to 1.5DIN 67971093925A42900000
    M24
    		25.038.01.3 to 1.6DIN 67971093925A43000000
     
    Black-Oxide Steel
    M2
    		2.24.50.2 to 0.4DIN 679710091106A1200000
    M2.5
    		2.75.50.2 to 0.5DIN 679710091106A1500000
    M2.6
    		2.85.50.3 to 0.5DIN 679710091106A1210000
    M3
    		3.26.00.3 to 0.5DIN 679710091106A1220000
    M3.5
    		3.77.00.4 to 0.6DIN 679710091106A1230000
    M4
    		4.38.00.4 to 0.6DIN 679710091106A1240000
    M5
    		5.310.00.5 to 0.7DIN 679710091106A1260000
    M6
    		6.411.00.6 to 0.8DIN 679710091106A1280000
    M8
    		8.415.00.7 to 0.9DIN 679710091106A1310000
    M10
    		10.518.00.8 to 1.0DIN 67975091106A1330000
    M12
    		13.020.50.9 to 1.2DIN 67975091106A1350000
    M14
    		15.024.00.9 to 1.2DIN 67972591106A1370000
    M16
    		17.026.01.0 to 1.4DIN 67972591106A1390000
    M18
    		19.030.01.2 to 1.5DIN 67971091106A1420000
    M20
    		21.033.01.2 to 1.5DIN 67971091106A14600000
     
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