DotsFasteners is a trusted and leading Fastener's Manufacturer in India, renowned for delivering premium-quality fasteners that adhere to international and domestic industry standards. We offer a comprehensive range in multiple sizes, materials, and grades to cater to the varying requirements of industrial, construction, and infrastructure sectors.

DotsFasteners based in Pune, Maharashtra, India, is a leading manufacturer and exporter of high-quality Washer Fasteners. They offer a wide range of washers with ready stock for export and supply globally. Ananka Group specializes in manufacturing bigger diameter washers and bolts in high tensile and stainless steel grades, as well as other fasteners, for major contractors and consultants in the power, renewable energy, wind, and infrastructure sectors. They also specialize in stainless steel bolts, nuts, and other fasteners.

Here are the weight charts for various types of washers, in kilograms:

APPROX. WEIGHT IN KGS FOR 100 NOS

SIZE	PLAIN PUNCHED WASHER IS:2016	HEAVY WASHER IS:6610	MACHINED WASHER IS:2016	SQUARE TAPER WASHERS FOR CHANNELS IS:5372-75	SQUARE TAPER WASHERS FOR I-BEAM IS:5374-75	SPRING WASHER FLAT SECTION IS:3063-72	SPRING WASHER SQUARE SECTION IS:6735-72 DIN: 7980	Size (Inches)	PLAIN PUNCHED WASHER BS:3410 TABLE 7	SPRING WASHER FLAT SECTION BS:1802-1951	SPRING WASHER SQUARE SECTION BS:1802-1951	MACHINED HIGH STRENGTH FRICTION GRIP	FOR CHANNELS IS: 6649-85	FOR I-BEAMS IS: 6649-85
M-3	0.01
M-4	0.02
M-5	0.04		0.03			0.03
M-6	0.11		0.08			0.04		1/4″	0.21
M-8	0.20	0.21		1.10	1.20	0.16	0.11	5/16″	0.35
M-10	0.39	1.60	0.40	1.00	1.10	0.25	0.20	3/8″	0.48
M-12	0.58	1.90	0.62	2.00	2.20	2.00	1.80	1/2″	1.07
M-14	0.82		0.60			0.38
M-16	1.06	2.90	1.13	3.40	3.75	9.00	8.50	5/8″	1.85
M-18	1.27		0.97			0.66
M-20	1.64	4.40	1.72	5.80	6.70	8.50	8.00	3/4″	2.91
M-22	1.75		7.50			7.00	1.65	7/8″	4.27
M-24	3.11	6.30	3.30	13.50	16.00	6.50	6.00	1″	6.13
M-27	3.94	8.00	4.23	12.50	15.00	12.00	11.50	1.1/8″	7.69
M-30	5.05	10.10	5.36	16.50	18.70	17.50	16.00	1.1/4″	9.90
M-33	7.10	12.00	7.54	21.00	23.50	23.00	22.50
M-36	8.73	14.60	9.20	25.50	29.20	26.50	26.00	1.1/2″	17.24
M-39	12.60		13.30	28.30	34.50
M-42	17.50		18.30
M-45	21.20		22.00
M-48	28.40		29.40					2″	27.78
M-52	31.90
M-56	47.90
M-60	51.60
M-64	55.40
M-68	57.40
M-72	63.40

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SPRING WASHERS – FLAT (RECTANGULAR) SECTION CONFORMING TO IS 3063-1994

NOM SIZE MM	Inner Dia (d) Basic	Tol (+)	Outer Dia (d1) Max	WIDTH (b) Basic	Tol (+ or -)	THICKNESS (S) Basic	Tol (+ or -)	Weight per 1000 in Kgs
3	3.1	0.3	6.2	1.3	0.1	0.8	0.1	0.11
4	4.1	0.3	7.6	1.5	0.1	0.9	0.1	0.18
5	5.1	0.3	9.2	1.8	0.1	1.2	0.1	0.36
6	6.1	0.4	11.8	2.5	0.15	1.6	0.1	0.83
8	8.1	0.4	14.8	3	0.15	2	0.1	1.60
10	10.2	0.5	18.1	3.5	0.2	2.2	0.15	2.53
12	12.2	0.5	21.1	4	0.2	2.5	0.15	3.82
14	14.2	0.5	24.1	4.5	0.2	3	0.15	6.01
16	16.2	0.8	27.4	5	0.2	3.5	0.2	8.91
18	18.2	0.8	29.4	5	0.2	3.5	0.2	9.73
20	20.2	1	33.6	6	0.2	4	0.2	15.20
22	22.5	1	35.9	6	0.2	4	0.2	16.50
24	24.5	1	40	7	0.25	5	0.2	26.20
27	27.5	1	43	7	0.25	5	0.2	28.70
30	30.5	1.2	48.2	8	0.25	6	0.2	44.30
33	33.5	1.2	55.2	10	0.25	6	0.2	63.00
36	36.5	1.2	58.2	10	0.25	6	0.2	67.30
39	39.5	1.2	61.2	10	0.25	6	0.2	71.70
42	42.5	1.2	68.2	12	0.25	7	0.25	111.00
45	45.5	1.2	71.2	12	0.25	7	0.25	117.00
48	49	1.5	75	12	0.25	7	0.25	123.00
52	53	1.5	83	14	0.25	8	0.25	182.00

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SPRING WASHERS – SQUARE SECTION CONFORMING TO IS 6735-1972

NOM SIZE	Inner Dia (d) Basic	Tol (+)	Outer Dia (d1) Max	WIDTH (b) = THICKNESS(s) Basic	Tol (+ or -)	Weight per 1000 IN KGS
3	3.1	0.3	5.6	1	0.1	0.105
4	4.1	0.3	7	1.2	0.1	0.195
5	5.1	0.3	8.8	1.6	0.1	0.370
6	6.1	0.4	9.9	1.6	0.1	0.425
8	8.1	0.4	12.7	2	0.1	1.05
10	10.2	0.5	16	2.5	0.15	1.96
12	12.2	0.5	18	2.5	0.15	2.28
14	14.2	0.5	21.1	3	0.2	3.8
16	16.2	0.8	24.4	3.5	0.2	5.94
18	18.2	0.8	26.4	3.5	0.2	6.6
20	20.2	1	30.6	4.5	0.2	12.3
22	22.5	1	32.9	4.5	0.2	13.6
24	24.5	1	35.9	5	0.2	18.1
27	27.5	1	38.9	5	0.2	20.6
30	30.5	1.2	44.1	6	0.2	32
33	33.5	1.2	47.2	6	0.2	35
36	36.5	1.2	52.2	7	0.25	52.5
39	39.5	1.2	55.2	7	0.25	56.1
42	42.5	1.2	60.2	8	0.25	80
45	45.5	1.2	64	8	0.25	85.3
48	49	1.5	67	8	0.25	90

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SPRING WASHERS FLAT AND SQUARE SECTION AS PER BSS 1802-1951

SIZE IN INCHES	SIZE IN MM	FLAT SECTION WIDTH X THICKNESS	SQUARE SECTION WIDTH AND THICKNESS
1/8”	3.18	1.2 X 0.8	–
5/32”	3.97	1.6 X 0.8	–
3/16”	4.76	2.3 X 1.2	1.6
¼”	6.35	2.3 X 1.6	1.8
5/16”	7.94	3.3 X 1.6	2
3/8”	9.53	3.7 X 1.6	2.3
7/16”	11.11	4.1 X 1.6	2.6
½”	12.70	4.1 X 2.3	3
9/16”	14.29	4.9 X 2.3	3.3
5/8”	15.88	4.9 X 3.3	3.7
¾”	19.05	5.9 X 3.3	4.5
7/8”	22.23	6.4 X 3.3	5.4
1”	25.40	7.1 X 4.7	5.9