Hex Nuts

Hex nuts from SPP Fasteners are general purpose Nuts made of Stainless Steel for maximum durability and strength. These Nuts can be used for Industrial, Petrochemical and Commercial purposes. But please note that for High strength Industrial Screws, it is advised to use the dimensionally corresponding Industrial Nuts. It is also one of the most widely used fasteners for petrochemical Applications. The Stainless Steel make significantly increases the life of the Nuts and in turn, increases the life of the component it is used to design.

The Nuts are threaded on the inside, and provide a good grip for when an assembly has to be disintegrated. It also provides a high amount of torque on the Bolt it is mated with, when adjustments have to be made to the construction. Of all the different types of nuts available in the market, Hex Bolts are the most popular ones – this is due to the popularity of its Bolt counterpart, Hex Bolts. SPP Fasteners is a leading Nut supplier in India. We also ship the product to coutnries from around the world.

SPP Manufacturing below Size, Metric and Standers of Hex Nuts

Size:	Metric –	Length:	Standard:
	M4-M48		DIN 934 , ISO 4032, ANSI B18.2.2

Material & Grade

Stainless Steel: A2-70, A2-80, A4-70, A-80, SS304/304L, SS316/316L
Carbon Steel and High Tensile: A193 B7, 4.6, 4.8, 5.8, 8.8, 10.9, 12.9

DIMENSIONAL STANDARDS:

IS 1364,ISO 4032,DIN 934,BS 1083,BS 1768,ASME B18.2.4.1M, ASME B18.2.2JIS1181

SIZE RANGE:

Metric: M6 to M72
Inches: 1/4” to 1-1/2”

HEXAGON NUTS DIMENSIONS

ISO 4032 – HEXAGON NUTS

EQUIVALENT NORMS: DIN 934; CSN 21401; PN 82144; UNI 5588; EU 24032;

Legend:
s – size of the hexagon
m – height of the nut
d – the nominal diameter of the thread
Makings:
Steel: 6,8,10,12
Stainless: A2,A4
Plastic: Plastic Pa
Non Ferrous: Brass, Copper, Aluminium
Thread: 6H
Notes:
Table according to EN ISO 4032:
dimensions in mm

THREAD D	PREFERRED	M1,6	M2	M2,5	M3	M4	M5	M6	M8	M10	M12
THREAD D		threads
P		0,35	0,4	0,45	0,5	0,7	0,8	1	1,25	1,5	1,75
c	max.	0,20	0,20	0,30	0,40	0,40	0,50	0,50	0,60	0,60	0,60
c	min.	0,10	0,10	0,10	0,15	0,15	0,15	0,15	0,15	0,15	0,15
da	max.	1,84	2,30	2,90	3,45	4,60	5,75	6,75	8,75	10,80	13,00
da	min.	1,60	2,00	2,50	3,00	4,00	5,00	6,00	8,00	10,00	12,00
dw	min.	2,40	3,10	4,10	4,60	5,90	6,90	8,90	11,60	14,60	16,60
e	min.	3,41	4,32	5,45	6,01	7,66	8,79	11,05	14,38	17,77	20,03
m	max.	1,30	1,60	2,00	2,40	3,20	4,70	5,20	6,80	8,40	10,80
m	min.	1,05	1,35	1,75	2,15	2,90	4,40	4,90	6,44	8,04	10,37
mw	min.	0,80	1,10	1,40	1,70	2,30	3,50	3,90	5,20	6,40	8,30
s	nominal = max.	3,20	4,00	5,00	5,50	7,00	8,00	10,0	13,00	16,00	18,00
s	min.	3,02	3,82	4,82	5,32	6,78	7,78	9,78	12,73	15,73	17,73


Thread d	preferred	M16	M20	M24	M30	M36	M42	M48	M56	M64
Thread d	threads
P		2	2,5	3	3,5	4	4,5	5	5,5	6
c	max.	0,80	0,80	0,80	0,80	0,80	1,00	1,00	1,00	1,00
c	min.	0,20	0,20	0,20	0,20	0,20	0,30	0,30	0,30	0,30
da	max.	17,30	21,60	25,90	32,40	38,90	45,40	51,80	60,50	69,10
da	min.	16,00	20,00	24,00	30,00	36,00	42,00	48,00	56,00	64,00
dw	min.	22,50	27,70	33,30	42,80	51,10	60,00	69,50	78,70	88,20
e	min.	26,75	32,95	39,55	50,85	60,79	71,30	82,60	93,56	104,86
m	max.	14,80	18,00	21,50	25,60	31,00	34,00	38,00	45,00	51,00
m	min.	14,10	16,90	20,20	24,30	29,40	32,40	36,40	43,40	49,10
mw	min.	11,30	13,50	16,20	19,40	23,50	25,90	29,10	34,70	39,30
s	nominal = max.	24,00	30,00	36,00	46,00	55,00	65,00	75,00	85,00	95,00
s	min.	23,67	29,16	35,00	45,00	53,80	63,10	73,10	82,80	92,80


Thread d	non-preferred	M3,5	M14	M18	M22	M27	M33	M39	M45	M52	M60
Thread d	threads
P		0,6	2	2,5	2,5	3	3,5	4	4,5	5	5,5
c	max.	0,40	0,60	0,80	0,80	0,80	0,80	1,00	1,00	1,00	1,00
c	min.	0,15	0,15	0,20	0,20	0,20	0,20	0,30	0,30	0,30	0,30
da	max.	4,00	15,10	19,50	23,70	29,10	35,60	42,10	48,60	56,20	64,80
da	min.	3,50	14,00	18,00	22,00	27,00	33,00	39,00	45,00	52,00	60,00
dw	min.	5,00	19,60	24,90	31,40	38,00	46,60	55,90	64,70	74,20	83,40
e	min.	6,58	23,36	29,56	37,29	45,20	55,37	66,44	76,95	88,25	99,21
m	max.	2,80	12,80	15,80	19,40	23,80	28,70	33,40	36,00	42,00	48,00
m	min.	2,55	12,10	15,10	18,10	22,50	27,40	31,80	34,40	40,40	46,40
mw	min.	2,00	9,70	12,10	14,50	18,00	21,90	25,40	27,50	32,30	37,10
s	nominal = max.	6,00	21,00	27,00	34,00	41,00	50,00	60,00	70,00	80,00	90,00
s	min.	5,82	20,67	26,16	33,00	40,00	49,00	58,80	68,10	78,10	87,80

DIMENSIONS OF HEAVY HEX NUTS ASME B18.2.2 USED WITH STUD BOLTS ASME B16.5

SIZE	WIDTH			WIDTH
		Across Flats			Across Corners
		F			C
		Basic	Max	Min	Max	Min
1/2	7/8	0.875	0.85	1.01	0.969
5/8	1.1/16	1.062	1.031	1.227	1.175
3/4	1.1/4	1.25	1.212	1.443	1.382
7/8	1.7/16	1.438	1.394	1.66	1.589
1	1.5/8	1.625	1.575	1.876	1.796
1.1/8	1.13/16	1.812	1.756	2.093	2.002
1.1/4	2	2	1.938	2.309	2.209
1.3/8	2.3/16	2.188	2.119	2.526	2.416
1.1/2	2.3/8	2.375	2.3	2.742	2.622
1.5/8	2.9/16	2.562	2.481	2.959	2.828
1.3/4	2.3/4	2.75	2.662	3.175	3.035
1.7/8	2.15/16	2.938	2.844	3.392	3.242
2	3.1/8	3.125	3.025	3.608	3.449
2.1/4	3.1/2	3.5	3.388	4.041	3.862
2.1/2	3.7/8	3.875	3.75	4.474	4.275
2.3/4	4.1/4	4.25	4.112	4.907	4.688
3	4.5/8	4.625	4.475	5.34	5.102
3.1/4	5	5	4.838	5.774	5.515
3.1/2	5.3/8	5.375	5.2	6.207	5.928
3.3/4	5.3/4	5.75	5.562	6.64	6.341
4	6.1/8	6.125	5.925	7.073	6.755

SIZE	THICKNESS
		T
		Basic	Max			Min
1/2	31/64	0.504	0.464		22	22.23
1/2	31/64	0.504	0.464	mm	mm
5/8	39/64	0.631	0.587	27	26.99
5/8	39/64	0.631	0.587	mm	mm
3/4	47/64	0.758	0.71	32	31.75
3/4	47/64	0.758	0.71	mm	mm
7/8	55/64	0.885	0.833	36	36.51
7/8	55/64	0.885	mm	mm
1	63/64	1.012	0.956	41	41.28
1	63/64	1.012	0.956	mm	mm
1.1/8	1.7/64	1.139	1.079	46	46.04
1.1/8	1.7/64	1.139	1.079	mm	mm
1.1/4	1.7/32	1.251	1.187	51	50.8
1.1/4	1.7/32	1.251	1.187	mm	mm
1.3/8	1.11/32	1.378	1.31	56	55.56
1.3/8	1.11/32	1.378	1.31	mm	mm
1.1/2	1.15/32	1.505	1.433	60	60.33
1.1/2	1.15/32	1.505	1.433	mm	mm
1.5/8	1.19/32	1.632	1.556	65	65.09
1.5/8	1.19/32	1.632	1.556	mm	mm
1.3/4	1.23/32	1.759	1.679	70	69.85
1.3/4	1.23/32	1.759	1.679	mm	mm
1.7/8	1.27/32	1.886	1.802	75	74.61
1.7/8	1.27/32	1.886	1.802	mm	mm
2	1.31/32	2.013	1.925	79	79.37
2	1.31/32	2.013	1.925	mm	mm
2.1/4	2.13/64	2.251	2.155	89	88.9
2.1/4	2.13/64	2.251	2.155	mm	mm
2.1/2	2.29/64	2.505	2.401	98	98.42
2.1/2	2.29/64	2.505	2.401	mm	mm
2.3/4	2.45/64	2.759	2.647	108	107.95
2.3/4	2.45/64	2.759	2.647	mm	mm
3	2.61/64	3.013	2.893	117	117.48
3	2.61/64	3.013	2.893	mm	mm
3.1/4	3.3/16	3.252	3.124	127	127
3.1/4	3.3/16	3.252	3.124	mm	mm
3.1/2	3.7/16	3.506	3.37	137	136.53
3.1/2	3.7/16	3.506	3.37	mm	mm
3.3/4	3.11/16	3.76	3.616	146	146.05
3.3/4	3.11/16	3.76	3.616	mm	mm
4	3.15/16	4.014	3.862	156	155.57
4	3.15/16	4.014	3.862	mm	mm

Dimensions of hex nuts ASME B18.2.4.1M and B18.2.4.2M

METRIC HEX NUTS ANSI/ASME B18.2.4.1M AND B18.2.4.2M

AMERICAN NATIONAL STANDARD METRIC HEX NUTS, STYLES 1 AND 2

METRIC HEX NUTS — STYLE 1
Nominal Nut Dia. and Thread Pitch	Width Across Flats, S		Width Across Corners, E		Thickness, M		Bearing Face Dia., Dw	Washer Face Thickness,C
Nominal Nut Dia. and Thread Pitch	Max	Min	Max	Min	Max	Min	Min	Max	Min
M1.6 × 0.35	3.2	3.02	3.7	3.41	1.3	1.05	2.3	…	…
M2 × 0.4	4	3.82	4.62	4.32	1.6	1.35	3.1	…	…
M2.5 × 0.45	5	4.82	5.77	5.45	2	1.75	4.1	…	…
M3 × 0.5	5.5	5.32	6.35	6.01	2.4	2.15	4.6	…	…
M3.5 × 0.6	6	5.82	6.93	6.58	2.8	2.55	5.1	…	…
M4 × 0.7	7	6.78	8.08	7.66	3.2	2.9	6	…	…
M5 × 0.8	8	7.78	9.24	8.79	4.7	4.4	7	…	…
M6 × 1	10	9.78	11.55	11.05	5.2	4.9	8.9	…	…
M8 × 1.25	13	12.73	15.01	14.38	6.8	6.44	11.6	…	…
M10 × 1.5	15	14.73	17.32	16.64	9.1	8.7	13.6	0.6	0.3
M10 × 1.5	16	15.73	18.48	17.77	8.4	8.04	14.6	…	…
M12 × 1.75	18	17.73	20.78	20.03	10.8	10.37	16.6	…	…
M14 × 2	21	20.67	24.25	23.36	12.8	12.1	19.4	…	…
M16 × 2	24	23.67	27.71	26.75	14.8	14.1	22.4	…	…
M20 × 2.5	30	29.16	34.64	32.95	18	16.9	27.9	0.8	0.4
M24 × 3	36	35	41.57	39.55	21.5	20.2	32.5	0.8	0.4
M30 × 3.5	46	45	53.12	50.85	25.6	24.3	42.5	0.8	0.4
M36 × 4	55	53.8	63.51	60.79	31	29.4	50.8	0.8	0.4
Metric Hex Nuts — Style 2
M3 × 0.5	5.5	5.32	6.35	6.01	2.9	2.65	4.6	…	…
M3.5 × 0.6	6	5.82	6.93	6.58	3.3	3	5.1	…	…
M4 × 0.7	7	6.78	8.08	7.66	3.8	3.5	5.9	…	…
M5 × 0.8	8	7.78	9.24	8.79	5.1	4.8	6.9	…	…
M6 × 1	10	9.78	11.55	11.05	5.7	5.4	8.9	…	…
M8 × 1.25	13	12.73	15.01	14.38	7.5	7.14	11.6	…	…
M10 × 1.5	15	14.73	17.32	16.64	10	9.6	13.6	0.6	0.3
M10 × 1.5	16	15.73	18.48	17.77	9.3	8.94	14.6	…	…
M12 × 1.75	18	17.73	20.78	20.03	12	11.57	16.6	…	…
M14 × 2	21	20.67	24.25	23.35	14.1	13.4	19.6	…	…
M16 × 2	24	23.67	27.71	26.75	16.4	15.7	22.5	…	…
M20 × 2.5	30	29.16	34.64	32.95	20.3	19	27.7	0.8	0.4
M24 × 3	36	35	41.57	39.55	23.9	22.6	33.2	0.8	0.4
M30 × 3.5	46	45	53.12	50.85	28.6	27.3	42.7	0.8	0.4
M36 × 4	55	53.8	63.51	60.79	34.7	33.1	51.1	0.8	0.4

BSF HEXAGON FULL NUT GRADE-A-STEEL BS1083

D	E	S MAX	S MIN	M MAX	M MIN
1/4″	0.51	0.445	0.438	0.2	0.19
5/16″	0.61	0.525	0.518	0.25	0.24
3/8″	0.69	0.6	0.592	0.312	0.302
7/16″	0.82	0.71	0.702	0.375	0.365
1/2″	0.95	0.82	0.812	0.437	0.427
9/16″	1.06	0.92	0.912	0.5	0.49
5/8″	1.17	1.01	1	0.562	0.552
3/4″	1.39	1.2	1.19	0.687	0.677
7/8″	1.5	1.3	1.288	0.75	0.74
1″	1.71	1.48	1.468	0.875	0.865
1.1/8″	1.93	1.67	1.64	1	0.99
1.1/4″	2.15	1.86	1.815	1.125	1.105
1.3/8″	2.37	2.05	2.005	1.25	1.23
1.1/2″	2.56	2.22	2.175	1.375	1.355
1.3/4″	2.98	2.58	2.52	1.625	1.605
2″	3.19	2.76	2.7	1.75	1.73

HEX AND LOCK NUT (BS 1768)

NOMINAL SIZE D	WIDTH ACROSS FLATS A		WIDTH ACROSS CORNERS C		THICKNESS
NOMINAL SIZE D	WIDTH ACROSS FLATS A		WIDTH ACROSS CORNERS C						Diameter if washer face B		Ordinary nuts E	Thick ordinary nuts P	Lock nuts F
in	Max.	Min.	Max.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.
	in	in	in	in	in	in	in	in	in	in	in
¼	0.4375	0.4305	0.505	0.421	0.411	0.224	0.214	0.286	0.276	0.161	0.151
5/16	0.5000	0.4930	0.577	0.473	0.473	0.271	0.261	0.333	0.323	0.192	0.182
3/8	0.5625	0.5545	0.650	0.545	0.535	0.333	0.323	0.411	0.401	0.224	0.214
½	0.7500	0.7420	0.866	0.730	0.720	0.442	0.432	0.567	0.557	0.317	0.307
5/8	0.9375	0.9295	1.083	0.918	0.908	0.552	0.542	0.724	0.714	0.380	0.370

IS 1363-3 TECHNICAL INFORMATION

Hexagon Head Bolts, Screws And Nuts Of Product Grade ‘C’
Part 3 Hexagon Head Nuts (size Range M 5 To M 64)
IS 1363 Part 3: 2002 / ISO 4034
Steel : 4, 8, 10
Finish: Self, Zinc Plated, Hot Dip Galvanized

TABLE 1 – PREFERRED THREADS

THREAD (D)		M5	M6	M8	M10	M12	M16	M20
P^a		0,8	1	1,25	1,5	1,75	2	2,5
d_w	min.	6,7	8,7	11,5	14,5	16,5	22	27,7
e	min.	8,63	10,89	14,2	17,59	19,85	26,17	32,95
m	max.	5,6	6,4	7,9	9,5	12,2	15,9	19,0
m	min.	4,4	4,9	6,4	8,0	10,4	14,1	16,9
m_w	min.	3,5	3,7	5,1	6,4	8,3	11,3	13,5
S	Nom. = max.	8,00	10,00	13,00	16,00	18,00	24,00	30,00
S	min.	7,64	9,64	12,57	15,57	17,57	23,16	29,16

THREAD (D)		M24	M30	M36	M42	M48	M56	M64
p^a		3	3,5	4	4,5	5	5,5	6
d_W	min.	33,3	42,8	51,1	60	69,5	78,7	88,2
e	min.	39,55	50,85	60,79	71,3	82,6	93,56	104,86
m	max.	22,3	26,4	31,9	34,9	38,9	45,9	52,4
m	min.	20,2	24,3	29,4	32,4	36,4	43,4	49,4
m_w	min.	16,2	19,4	23,2	25,9	29,1	34,7	39,5
s	nom. = max.	36	46	55,0	65,0	75,0	85,0	95,0
s	min.	35	45	‘53,8	63,1	73,1	82,8	92,8

TABLE 2 – NON-PREFEERED THREADS

THREAD (D)		M14	M18	M22	M27	M33	M39	M45	M52	M60
p^a		2	2,5	2,5	3	3,5	4	4,5	5	5,5
d_W	min.	19,2	24,9	31,4	38	46,6	55,9	64,7	74,2	83,4
e	min.	22,78	29,56	37,29	45,2	55,37	66,44	76,95.	88,25	.99,21
m	max.

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Hex Nuts

SPP Manufacturing below Size, Metric and Standers of Hex Nuts

Material & Grade

DIMENSIONAL STANDARDS:

SIZE RANGE:

HEXAGON NUTS DIMENSIONS

ISO 4032 – HEXAGON NUTS

EQUIVALENT NORMS: DIN 934; CSN 21401; PN 82144; UNI 5588; EU 24032;

DIMENSIONS OF HEAVY HEX NUTS ASME B18.2.2 USED WITH STUD BOLTS ASME B16.5

METRIC HEX NUTS ANSI/ASME B18.2.4.1M AND B18.2.4.2M

AMERICAN NATIONAL STANDARD METRIC HEX NUTS, STYLES 1 AND 2

BSF HEXAGON FULL NUT GRADE-A-STEEL BS1083

HEX AND LOCK NUT (BS 1768)

IS 1363-3 TECHNICAL INFORMATION

TABLE 1 – PREFERRED THREADS

TABLE 2 – NON-PREFEERED THREADS

Hex Nuts

Quality Assurance

Accuracy

Customization

Timely Delivery

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