Metric External Tooth Lock Washers

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For Bearing Nut Specifications Met

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107 Products

About Washers

Teeth on the outside edge of these washers bite into the screw head and joint for a tight grip. Use with fasteners that have heads large enough to make contact with the teeth, such as pan, button, and binding head screws.

Zinc-plated steel washers are corrosion resistant in wet environments.

18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.

For technical drawings and 3-D models, click on a part number.

Zinc-Plated Steel
For Screw Size	ID, mm	OD, mm	Thick., mm	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2	2.3	4.5	0.2-0.4	Rockwell C35	DIN 6797	100	000000000	00000
M2.5	2.8	5.5	0.3-0.5	Rockwell C35	DIN 6797	100	000000000	0000
M3	3.2	6.0	0.3-0.5	Rockwell C35	DIN 6797	100	000000000	0000
M3.5	3.9	7.0	0.9-1.2	Rockwell C35	DIN 6797	100	000000000	0000
M4	4.3	8.0	0.4-0.6	Rockwell C35	DIN 6797	100	000000000	0000
M5	5.3	10.0	0.5-0.7	Rockwell C35	DIN 6797	100	000000000	0000
M6	6.4	11.0	0.6-0.8	Rockwell C35	DIN 6797	100	000000000	0000
M7	7.4	12.5	0.7-0.9	Rockwell C35	DIN 6797	25	000000000	0000
M8	8.4	15.0	0.7-0.9	Rockwell C35	DIN 6797	100	000000000	0000
M10	10.5	18.0	0.8-1.0	Rockwell C35	DIN 6797	50	000000000	0000
M12	13.0	20.5	0.9-1.2	Rockwell C35	DIN 6797	25	000000000	0000
M14	15.0	24.0	0.9-1.2	Rockwell C35	DIN 6797	25	000000000	0000
M16	17.3	26.0	1.0-1.4	Rockwell C35	DIN 6797	25	000000000	0000
M18	19.0	30.0	1.2-1.6	Rockwell C35	DIN 6797	5	000000000	0000
M20	21.0	33.0	1.2-1.6	Rockwell C35	DIN 6797	5	000000000	0000
M22	23.0	36.0	1.3-1.7	Rockwell C35	DIN 6797	5	000000000	0000
M24	25.0	38.0	1.3-1.7	Rockwell C35	DIN 6797	5	000000000	0000
M30	31.0	48.0	1.4-1.8	Rockwell C35	DIN 6797	5	000000000	0000
18-8 Stainless Steel
M2	2.3	4.5	0.2-0.4	__	DIN 6797	100	000000000	0000
M2.5	2.8	5.5	0.3-0.5	__	DIN 6797	100	000000000	0000
M3	3.2	6.0	0.3-0.5	__	DIN 6797	100	000000000	0000
M3.5	3.9	7.0	0.4-0.6	__	DIN 6797	100	000000000	0000
M4	4.3	8.0	0.4-0.6	__	DIN 6797	100	000000000	0000
M5	5.3	10.0	0.5-0.7	__	DIN 6797	100	000000000	0000
M6	6.4	11.0	0.6-0.8	__	DIN 6797	100	000000000	0000
M7	7.4	12.5	0.7-0.9	__	DIN 6797	100	000000000	0000
M8	8.4	15.0	0.7-0.9	__	DIN 6797	100	000000000	0000
M10	10.5	18.0	0.8-1.0	__	DIN 6797	100	000000000	0000
M12	13.0	20.5	0.9-1.2	__	DIN 6797	50	000000000	0000
M14	15.0	24.0	0.9-1.2	__	DIN 6797	50	000000000	00000
M16	17.3	26.0	1.0-1.4	__	DIN 6797	50	000000000	00000
M18	19.0	30.0	1.2-1.6	__	DIN 6797	10	000000000	0000
M20	21.0	33.0	1.2-1.6	__	DIN 6797	10	000000000	0000
M22	23.0	36.0	1.3-1.7	__	DIN 6797	10	000000000	0000
M24	25.0	38.0	1.3-1.7	__	DIN 6797	10	000000000	00000
M30	31.0	48.0	1.4-1.8	__	DIN 6797	10	000000000	00000
316 Stainless Steel
M3	3.2	6.0	0.3-0.5	__	DIN 6797	5	000000000	0000
M4	4.3	8.0	0.4-0.6	__	DIN 6797	5	000000000	0000
M5	5.3	10.0	0.5-0.7	__	DIN 6797	5	000000000	0000
M6	6.4	11.0	0.6-0.8	__	DIN 6797	5	000000000	0000
M8	8.4	15.0	0.7-0.9	__	DIN 6797	5	000000000	00000
M10	10.5	18.0	0.8-1.0	__	DIN 6797	1	000000000	0000
M12	13.0	20.5	0.9-1.2	__	DIN 6797	1	000000000	00000
M14	15.0	24.0	0.9-1.2	__	DIN 6797	1	000000000	00000
M16	17.3	26.0	1.0-1.4	__	DIN 6797	1	000000000	00000
M20	21.0	33.0	1.2-1.6	__	DIN 6797	1	000000000	00000

Tight-Grip External-Tooth Lock Washers

The teeth on these washers bite further into the screw head and joint than standard external-tooth washers to provide a stronger hold. Use with fasteners that have heads large enough to make contact with the teeth, such as pan, button, and binding head screws.

18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

Zinc-plated steel washers are corrosion resistant in wet environments.

For technical drawings and 3-D models, click on a part number.

18-8 Stainless Steel
For Screw Size	ID, mm	OD, mm	Thick., mm	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M2	2.2	4.5	0.2-0.4	Not Rated	DIN 6798	100	000000000	00000
M2.5	2.7	5.5	0.3-0.5	Not Rated	DIN 6798	100	000000000	0000
M3	3.2	6.0	0.3-0.5	Not Rated	DIN 6798	100	000000000	0000
M4	4.3	8.0	0.4-0.6	Not Rated	DIN 6798	100	000000000	0000
M5	5.3	10.0	0.5-0.7	Not Rated	DIN 6798	100	000000000	0000
M6	6.4	11.0	0.6-0.8	Not Rated	DIN 6798	100	000000000	0000
M8	8.4	15.0	0.7-0.9	Not Rated	DIN 6798	100	000000000	0000
M10	10.5	18.0	0.8-1.0	Not Rated	DIN 6798	100	000000000	00000
M12	13.0	20.5	0.9-1.2	Not Rated	DIN 6798	50	000000000	0000
M16	17.0	26.0	1.0-1.4	Not Rated	DIN 6798	50	000000000	0000
M20	21.0	33.0	1.2-1.5	Not Rated	DIN 6798	10	000000000	0000
M24	25.0	38.0	1.4-1.6	Not Rated	DIN 6798	10	000000000	0000
Zinc-Plated Steel
M3	3.2	6.0	0.4-0.5	Rockwell C35	DIN 6798	100	000000000	0000
M4	4.3	8.0	0.5-0.6	Rockwell C35	DIN 6798	100	000000000	0000
M5	5.3	10.0	0.6-0.7	Rockwell C35	DIN 6798	100	000000000	0000
M6	6.4	11.0	0.7-0.8	Rockwell C35	DIN 6798	100	000000000	0000
M8	8.4	15.0	0.8-0.9	Rockwell C35	DIN 6798	100	000000000	0000
M10	10.5	18.0	0.9-1.0	Rockwell C35	DIN 6798	50	000000000	0000
M12	13.0	20.5	1.0-1.2	Rockwell C35	DIN 6798	50	000000000	0000

Countersunk Tight-Grip External-Tooth Lock Washers

To keep 90° countersunk screws from loosening in vibration applications, the teeth on these washers bite further into the screw head and joint than standard external-tooth lock washers for a more secure hold. Made of zinc-plated steel, these washers resist corrosion in wet environments. All meet DIN dimensional standards.

For technical drawings and 3-D models, click on a part number.

Zinc-Plated Steel
For Screw Size	ID, mm	OD, mm	Thickness, mm	Countersink Angle	Hardness	Specifications Met	Pkg. Qty.		Pkg.
M3	3.2	6.0	0.15-0.25	90°	Rockwell C35	DIN 6798	100	00000000	000000
M4	4.3	8.0	0.20-0.30	90°	Rockwell C35	DIN 6798	100	00000000	00000
M5	5.3	9.8	0.25-0.35	90°	Rockwell C35	DIN 6798	50	00000000	00000
M6	6.4	11.8	0.35-0.45	90°	Rockwell C35	DIN 6798	50	00000000	0000
M8	8.4	15.3	0.35-0.45	90°	Rockwell C35	DIN 6798	50	00000000	00000
M10	10.5	19.0	0.45-0.55	90°	Rockwell C35	DIN 6798	25	00000000	0000
M12	13.0	23.0	0.45-0.55	90°	Rockwell C35	DIN 6798	25	00000000	00000

Spring Lock Washers for Slotted Bearing Nuts

Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle. They also have an inner tab that sits in the shaft or spindle’s keyway to prevent the nut from loosening.

Steel washers are strong and flexible.

Washers with external teeth grip components using their teeth, in addition to spring tension.

DIN 462 and DIN 5406 washers meet international standards for lock washer dimensions. Pair DIN 462 washers with DIN 1804 bearing nuts, and DIN 5406 washers with DIN 981 bearing nuts.

For technical drawings and 3-D models, click on a part number.

Metric

For Chamfered Nuts

				Tab
For Screw Size	ID, mm	OD, mm	Thick., mm	Wd., mm	Dp., mm	Overall Ht., mm	Hardness	Specifications Met	For Bearing Nut Specifications Met		Each
Steel
For Chamfered Nuts—with External Teeth
M10	10.000	21.000	1.000	3.000	1.500	3.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M12	12.000	25.000	1.000	3.000	1.500	3.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M15	15.000	28.000	1.000	4.000	1.500	2.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M17	17.000	32.000	1.000	4.000	1.500	3.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M20	20.000	36.000	1.000	4.000	1.500	3.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M25	25.000	42.000	1.250	5.000	2.000	3.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M30	30.000	49.000	1.250	5.000	2.500	4.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M35	35.000	57.000	1.250	6.000	2.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M40	40.000	62.000	1.250	6.000	2.500	4.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M45	45.000	69.000	1.250	6.000	2.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M50	50.000	74.000	1.250	6.000	2.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M55	55.000	81.000	1.250	8.000	2.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M60	60.000	86.000	1.500	8.000	2.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M65	65.000	92.000	1.500	8.000	2.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M70	70.000	98.000	1.500	8.000	3.500	4.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M75	75.000	104.000	1.500	8.000	3.500	5.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M80	80.000	112.000	1.750	10.000	3.500	5.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M85	85.000	119.000	1.750	10.000	3.500	5.500	Not Rated	DIN 5406	DIN 981	000000000	0000
M90	90.000	126.000	1.750	10.000	3.500	6.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M95	95.000	133.000	1.750	10.000	3.500	6.500	Not Rated	DIN 5406	DIN 981	000000000	00000
M100	100.000	142.000	1.750	12.000	3.500	7.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M105	105.000	145.000	1.750	12.000	4.500	6.000	Not Rated	DIN 5406	DIN 981	000000000	0000
M110	110.000	154.000	1.750	12.000	4.500	6.500	Not Rated	DIN 5406	DIN 981	000000000	00000
M115	115.000	159.000	2.000	12.000	4.500	7.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M120	120.000	164.000	2.000	14.000	5.000	8.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M125	125.000	170.000	2.000	14.000	5.000	7.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M130	130.000	175.000	2.000	14.000	5.000	8.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M135	135.000	185.000	2.000	14.000	5.000	8.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M140	140.000	192.000	2.000	16.000	5.000	9.500	Not Rated	DIN 5406	DIN 981	000000000	00000
M145	145.000	202.000	2.000	16.000	5.000	9.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M150	150.000	205.000	2.000	16.000	5.000	10.000	Not Rated	DIN 5406	DIN 981	000000000	00000
M160	160.000	217.000	2.500	18.000	6.000	10.500	Not Rated	DIN 5406	DIN 981	000000000	000000
M170	170.000	232.000	2.500	18.000	6.000	11.500	Not Rated	DIN 5406	DIN 981	000000000	000000
M180	180.000	242.000	2.500	20.000	6.000	11.500	Not Rated	DIN 5406	DIN 981	000000000	000000
M220	220.000	292.000	3.000	24.000	7.000	13.000	Not Rated	DIN 5406	DIN 981	000000000	000000

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