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Carbon Steel Q235 Blacked DIN 125 Flat Washer Hardness 140HV 200HV

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Carbon Steel Q235 Blacked DIN 125 Flat Washer Hardness 140HV 200HV

Country/Region	china
City & Province	suzhou
Categories	Door & Window Bolts

Product Details

DIN125 Carbon Steel Q235 Blacked Flat Washer Product Grade A, Hardness 140HV 200HV

Features:

Flat Shape: The DIN 125 Flat Washer is a metal ring with a flat shape, making it easy to place between parts that need to be connected.
Pressure Distribution: The flat washer effectively distributes the pressure from the nut on the parts being connected, preventing damage due to excessive pressure.
Enlarged Contact Area: The flat washer enlarges the contact area between the nut and the connected parts, enhancing the stability and reliability of the connection.
Material and Hardness: These washers are typically made from spring steel, such as 65Mn, with a surface oxidation treatment and a heat-treated hardness of HRC 44-51, providing good elasticity and wear resistance.

Advantages:

Strong Universality: The DIN 125 Flat Washer is a standardized product that can be widely used in various mechanical equipment and projects, offering high universality.
Easy Installation: Due to its flat shape and simple structure, the DIN 125 Flat Washer is easy to install and remove, reducing maintenance costs and time.
Improved Connection Reliability: By distributing pressure and enlarging the contact area, the DIN 125 Flat Washer significantly improves the stability and reliability of connections, reducing the possibility of failures and accidents.

Applications:

Mechanical Equipment: The DIN 125 Flat Washer is widely used in various mechanical equipment, such as automobiles, ships, aerospace, and construction, for connecting and fixing various components.
Fastener Connections: These washers are often used along with bolts, screws, and other fasteners to provide additional support and protection, ensuring secure and reliable connections.
Piping Systems: In piping systems, the DIN 125 Flat Washer can be used to connect pipes, valves, and other components, preventing leaks and damage.

Size		Φ1.7	Φ1.8	Φ2.2	Φ2.5	Φ2.7	Φ2.8	Φ3.2
M	For thread size	M1.6	M1.7	M2	M2.3	M2.5	M2.6	M3
d	min=nominal size	1.7	1.8	2.2	2.5	2.7	2.8	3.2
d	max	1.84	1.94	2.34	2.64	2.84	2.94	3.38
dc	max=nominal size	4	4.5	5	6	6	7	7
dc	min	3.7	4.2	4.7	5.7	5.7	6.64	6.64
h	Nominal Size	0.3	0.3	0.3	0.5	0.5	0.5	0.5
	max	0.35	0.35	0.35	0.55	0.55	0.55	0.55
	min	0.25	0.25	0.25	0.45	0.45	0.45	0.45
per 1000 units ≈ kg		0.024	0.031	0.037	0.092	0.088	0.127	0.119
Size		Φ3.7	Φ4.3	Φ5.3	Φ6.4	Φ7.4	Φ8.4	Φ10.5
M	For thread size	M3.5	M4	M5	M6	M7	M8	M10
d	min=nominal size	3.7	4.3	5.3	6.4	7.4	8.4	10.5
d	max	3.88	4.48	5.48	6.62	7.62	8.62	10.77
dc	max=nominal size	8	9	10	12	14	16	20
dc	min	7.64	8.64	9.64	11.57	13.57	15.57	19.48
h	Nominal Size	0.5	0.8	1	1.6	1.6	1.6	2
	max	0.55	0.9	1.1	1.8	1.8	1.8	2.2
	min	0.45	0.7	0.9	1.4	1.4	1.4	1.8
per 1000 units ≈ kg		0.155	0.308	0.443	1.02	1.39	1.83	3.57
Size		Φ13	Φ15	Φ17	Φ19	Φ21	Φ23	Φ25
M	For thread size	M12	M14	M16	M18	M20	M22	M24
d	min=nominal size	13	15	17	19	21	23	25
d	max	13.27	15.27	17.27	19.33	21.33	23.33	25.33
dc	max=nominal size	24	28	30	34	37	39	44
dc	min	23.48	27.48	29.48	33.38	36.38	38.38	43.38
h	Nominal Size	2.5	2.5	3	3	3	3	4
	max	2.7	2.7	3.3	3.3	3.3	3.3	4.3
	min	2.3	2.3	2.7	2.7	2.7	2.7	3.7
per 1000 units ≈ kg		6.27	8.62	11.3	14.7	17.2	18.3	32.3
Size		Φ27	Φ28	Φ29	Φ31	Φ33	Φ34	Φ36
M	For thread size	M26	M27	M28	M30	M32	M33	M35
d	min=nominal size	27	28	29	31	33	34	36
d	max	27.33	28.33	29.33	31.39	33.62	34.62	36.62
dc	max=nominal size	50	50	50	56	60	60	66
dc	min	49.38	49.38	49.38	55.26	58.8	58.8	64.8
h	Nominal Size	4	4	4	4	5	5	5
	max	4.3	4.3	4.3	4.3	5.6	5.6	5.6
	min	3.7	3.7	3.7	3.7	4.4	4.4	4.4
per 1000 units ≈ kg		43.7	42.3	40.9	53.6	77.4	75.3	94.3
Size		Φ37	Φ39	Φ40	Φ41	Φ43	Φ46	Φ50
M	For thread size	M36	M38	M39	M40	M42	M45	M48
d	min=nominal size	37	39	40	41	43	46	50
d	max	37.62	39.62	40.62	41.62	43.62	46.62	50.62
dc	max=nominal size	66	72	72	72	78	85	92
dc	min	64.8	70.8	70.8	70.8	76.8	83.6	90.6
h	Nominal Size	5	6	6	6	7	7	8
	max	5.6	6.6	6.6	6.6	8	8	9
	min	4.4	5.4	5.4	5.4	6	6	7
per 1000 units ≈ kg		92.1	136	133	130	183	220	294
Size		Φ52	Φ54	Φ57	Φ58	Φ60	Φ62	Φ66
M	For thread size	M50	M52	M55	M56	M58	M60	M64
d	min=nominal size	52	54	57	58	60	62	66
d	max	52.74	54.74	57.74	58.74	60.74	62.74	66.74
dc	max=nominal size	92	98	105	105	110	110	115
dc	min	90.6	96.6	103.6	103.6	108.6	108.6	113.6
h	Nominal Size	8	8	9	9	9	9	9
	max	9	9	10	10	10	10	10
	min	7	7	8	8	8	8	8
per 1000 units ≈ kg		284	330	431	425	472	458	492
Size		Φ70	Φ74	Φ78	Φ82	Φ87	Φ93	Φ98
M	For thread size	M68	M72	M76	M80	M85	M90	M95
d	min=nominal size	70	74	78	82	87	93	98
d	max	70.74	74.74	78.74	82.87	87.87	93.87	98.87
dc	max=nominal size	120	125	135	140	145	160	165
dc	min	118.6	123.4	133.4	138.4	143.4	158.4	163.4
h	Nominal Size	10	10	10	12	12	12	12
	max	11	11	11	13.2	13.2	13.2	13.2
	min	9	9	9	10.8	10.8	10.8	10.8
per 1000 units ≈ kg		586	626	749	953	996	1250	1300
Size		Φ104	Φ109	Φ114	Φ119	Φ124	Φ129	Φ134
M	For thread size	M100	M105	M110	M115	M120	M125	M130
d	min=nominal size	104	109	114	119	124	129	134
d	max	104.87	109.87	114.87	119.87	125	130	135
dc	max=nominal size	175	180	185	200	210	220	220
dc	min	173.4	178.4	183.15	198.15*	208.15	218.15	218.15
h	Nominal Size	14	14	14	14	16	16	16
	max	15.2	15.2	15.2	15.2	17.2	17.2	17.2
	min	12.8	12.8	12.8	12.8	14.8	14.8	14.8
per 1000 units ≈ kg		1710	1770	1830	2230	2830	3130	3000
Size		Φ139	Φ144	Φ149	Φ155	Φ165
M	For thread size	M135	M140	M145	M150	M160
d	min=nominal size	139	144	149	155	165
d	max	140	145	150	156	166
dc	max=nominal size	230	240	250	250	250
dc	min	228.15	238.15	248.15	248.15	248.15
h	Nominal Size	16	18	18	18	18
	max	17.2	19.2	19.2	19.2	19.2
	min	14.8	16.8	16.8	16.8	16.8
per 1000 units ≈ kg		3310	4090	4470	4270	3910

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