Grade 8.8 Bolts

Manufacturer of BS 3692 and Din 933 High Tensile Class 8.8 Jh Hex bolts and Threaded Rod at discounted price

Grade 8.8 Bolt Manufacturers India produce the bolts in medium carbon steels. These steels are quenched and tempered for maximum hardness. The applications can be seen in motors, railroad equipment, processing equipment and in engine parts. Viha Steel & Forging is a leading manufacturer of bolts in the Grade 8.8 Bolts and 8.8 Screw. The composition has carbon, phosphorus, sulfur and boron in it. The specification for this material grade fasteners is the ASTM A324. The diameter of the 8.8 Jh Bolt range from 20mm to 100mm.

They can come with different finishes as well. The zinc plated, hot dip galvanized and plain finishes are available for different application needs. The 8.8 Metric Bolt is one of the standards adopted. The different standards govern the dimensions of the fasteners and are used in different industrial applications. The different types include studs, tie bars, threaded rods, bolts and screws. The Class 8.8 Bolts are known as high tensile bolts. These have high torque capacities with high tensile strength ranging above 500MPa. The carbon steel fasteners have different properties such as pitch, head across flat surface, head height and others.

There are also different standards such as the 8.8 Stainless Steel Bolts and others according to the international standards. As a leading suppliers of the high tensile fasteners, we supply the bolts in different standards such as the Bs 3692 Grade 8.8 and in most international standards. Please feel free to contact us for more information on the different types of bolts in the Metric Grade 8.8 and the pricing.

Table Of Content

Material Specification Chart Of Class 8.8 Bolt
grade 8.8 bolt shear strength
Most Common Types Of Grade 8.8 Bolts
High Tensile 8.8 Jh Bolt Dimensions
Price list of Grade 8.8 Bolts
anchor bolt grade 8.8 Markings and Strength Chart
To Bs 1083-1965 Grade 8.8 Hex Bolts In Bsw/Bsf Threads
Class 8.8 Hex Nuts Dimensions
Grade 8.8 Countersunk Bolt Dimension
Dimensions of Din 933 Grade 8.8 Screw
Bs 3692 Grade 8.8 Metric Bolt Other Types
Size Chart of 8.8 Stainless Steel Bolts
grade 8.8 bolt tensile/ yield strength
8.8 grade bolt hardness

Material Specification Chart Of Class 8.8 Bolt

Grades	Grade 8.8
Standard	ASTM A324, ASME SA324
finish	Plain /Zinc plated / Hot dip galvanised
Size	Dia M 20 to 100 mm Inch 3/4" to 3.1/2"

8.8 Galvanised Bolts and Studs Material Supplier, Before Buy Check 8.8 Metric Bolt price in India

grade 8.8 bolt shear strength

Diameter of Bolt	Tensile Stress Area At	Tension Capacity		Shear Capacity		Bearing Capacity in kN (Minimum of Pbb and Pbs) End distance equal to 2 x bolt diameter Thickness in mm of material passed through
		Nominal 0.8 At pt	Exact At pt	Single Shear	Double Shear
		Pnom	Pt	Ps	2 Ps
mm	mm2	kN	kN	kN	kN	5	6	7	8	9	10	12	15	20	25	30
12	84.3	37.8	47.2	31.6	63.2	33.0	39.6	46.2	52.8	59.4	66.0	79.2	99.0	132	165	198
16	157	70.3	87.9	58.9	118	44.0	52.8	61.6	70.4	79.2	88.0	106	132	176	220	264
20	245	110	137	91.9	184	55.0	66.0	77.0	88.0	99.0	110	132	165	220	275	330
22	303	136	170	114	227	60.5	72.6	84.7	96.8	109	121	145	182	242	303	363
24	353	158	198	132	265	66.0	79.2	92.4	106	119	132	158	198	264	330	396
27	459	206	257	172	344	74.3	89.1	104	119	134	149	178	223	297	371	446
30	561	251	314	210	421	82.5	99.0	116	132	149	165	198	248	330	413	495

Non-preloaded Ordinary Bolts

Values in bold are less than the single shear capacity of the bolt.
Values in italic are greater than the double shear capacity of the bolt.
Bearing values assume standard clearance holes.
If oversize or short slotted holes are used, bearing values should be multiplied by 0.7.
If long slotted or kidney shaped holes are used, bearing values should be multiplied by 0.5.
If appropriate, shear capacity must be reduced for large packings, large grip lengths and long joints.

Most Common Types Of Grade 8.8 Bolts

8.8 Jh Bolt

Grade 8.8 Bolts

8.8 Metric Bolt

8.8 Stainless Steel Bolts

8.8 Screw

8.8 hex bolt

anchor bolt grade 8.8

grade 8.8 galvanised bolts

do you know that Viha is one of the favourite supplier of Grade 8.8 Bolts in below countries

Dammam -KSA, Indonesia, Philippines, Belgium	M20 M22 Grade 8.8 Carbon Steel 10.9 Hexagon Hex Head Bolts (DIN931)
Europe, France, Thailand, Qatar	Plain Finish Zp DIN933/931 Unc Bsw Standard Fastener 4.8 8.8 Grade Bolts with Nut
Thailand, Germany, Malaysia, Czechia	HDG Zp Plain Finish, 4.8 8.8 Grade L/J/U/V Shape Anchor Bolts
Bangladesh, USA, Finland, Malaysia	8.8 Grade Color-Zinc Expansion Anchor Bolts with Hex Nut
Kuwait, Saudi Arabia (KSA), Brazil, South Africa	High Tensile Strength Hex Head Bolts, Partial Thread, Half Thread or Full Thread, Grade 8.8
South Africa, Singapore, Bahrain	Carbon Steel Grade 8.8 Hot DIP Galvanized Hex Bolts DIN933
Philippines, Nigeria, UK, Australia	Double End Boltss Carbon Steel Grade 8.8
Malaysia, Hong Kong, Oman, UAE	Carbon Steel Grade 8.8 Oval Neck Track Bolts Rail Fish Bolts
Italy, Iran, Singapore, Chile	Heavy Duty Black Hexagonal Head Full Thread Bolts Grade 8.8
Norway, Turkey, Malaysia, United Arab Emirates (UAE)	Grade 8.8 Zinc Plated Hex Head Boltss
Malaysia, Russia, Netherlands, Dubai	DIN933 8.8 Grade Galvanized Heavy Hex Bolts and Nut
Egypt, Mexico, UK, Spain	8.8 Grade A2 A4 Stainless Steel Hex Socket Head Cap Screw Bolts
Europe, UAE, Malaysia, United Kingdom -UK	Black Oxide Dacromet Grade 8.8 Flange Bolts (DIN6921)
Poland, Canada, Ellington -United States, UK	Stainless Steel 8.8 Grade Step Customized Head Bolts
Canada, Philippines, Singapore, Malaysia	8.8 Grade Carbon Steel Blue Zinc Plated Carriage Bolts
Malaysia, Japan, Europe, Romania	Stainless Steel Grade 8.8 DIN603 Mushroom Head Square Neck Coach Bolts
Colombia, Sweden, China, Malaysia	DIN933 8.8 Grade Heavy Hex Bolts and Nut Galvanized
Los Alamos -Mexico, Taiwan, Philippines, Malaysia	High Strength Grade 8.8 Zinc Plated Hex Flange Bolts

To Din 6916 Hardened And Tempered Washers

All dimensions in mm

DIA	M12	M16	M20	M22	M24	M27	M30	M36
Weight in Kgs for 100 nos	0.703	1.46	1.96	2.43	3.06	5.02	6.32	11.50
Outer Dia (Max) d2	24	30	37	39	44	50	56	66
Inner Dia (Min) d1	13	17	21	23	25	28	31	37
Thickness (S)	3	4	4	4	4	5	5	6
Tolerance for OD Minus(-)	0.52		0.62			1	1.20
Tolerance for ID Plus(+)	0.27		0.33			0.52	0.62
Tolerance for thickness + or –	0.30					0.60

High Tensile 8.8 Jh Bolt Dimensions

**All measurements in millimeters**

DIA	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
Pitch	0.7	0.8	1	1.25	1.5	1.75	2		2.5			3		3.5		4		4.5		5
Grade A upto length	40	50	60	80	100	120	140	150					Grade A not applicable to these dia’s
Head Across Flat (S) Nom = Max Min Grade A Grade B	7	8	10	13	16	18	21	24	27	30	34	36	41	46	50	55	60	65	70	75	80
	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67	33.38	35.38	Grade A not applicable to these dia’s
	6.64	7.64	9.64	12.57	15.57	17.57	20.16	23.16	26.16	29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1
Head Height (K) Nom Tol + or – Grade A Grade B	2.8	3.5	4	5.3	6.4	7.5	8.8	10	11.5	12.5	14	15	17	18.7	21	22.5	25	26	28	30	33
	0.125	0.15			0.18				0.215				Grade A not applicable to these dia’s
	0.2	0.24			0.29				0.35					0.42							0.5
Across corners e Min Grade A Grade B	7.66	8.79	11.05	14.38	17.77	20.03	23.36	26.75	30.14	33.53	37.72	39.98	Grade A not applicable to these dia’s
Across corners e Min Grade A Grade B	7.5	8.63	10.89	14.2	17.59	19.85	22.78	26.17	29.56	32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
Thread Length (b) For lengths < or = 125mm For lengths > 125mm <= 200mm For lengths > 200mm	14	16	18	22	26	30	34	38	42	46	50	54	60	66	Not specified as full thread recommended
	20	22	24	28	32	36	40	44	48	52	56	60	66	72	78	84	90	96	102	108	116
	33	35	37	41	45	49	53	57	61	65	69	73	79	85	91	97	103	109	115	121	129
Major Dia at thread (min)	3.838	4.826	5.794	7.76	9.732	11.701	13.682	15.682	17.623	19.623	21.623	23.577	26.577	29.522	32.522	35.465	38.465	41.437	44.437	47.399	51.399
Major Dia at thread (max)	3.978	4.976	5.974	7.972	9.968	11.966	13.962	15.962	17.958	19.958	21.958	23.952	26.952	29.947	32.947	35.94	38.94	41.937	44.937	47.929	51.929

Price list of Grade 8.8 Bolts

Grade 8.8 Fasteners Price List	Price Per Pcs.
Grade 8.8 Hex head bolts price	USD $6.05
Grade 8.8 Screws price	USD $3.70
Grade 8.8 Allen bolts price	USD $4.25
Grade 8.8 Nuts price	USD $1.45

anchor bolt grade 8.8 Markings and Strength Chart

Head Marking	Class and Material	Nominal Size Range (mm)	Mechanical Properties
Metric Bolts
Head Marking	Class and Material	Nominal Size Range (mm)	Proof Load (MPa)	Min. Yield Strength (MPa)	Min. Tensile Strength (MPa)
	Class 8.8 Medium carbon steel, quenched and tempered	All sizes below 16mm	580	640	800
	Class 8.8 Medium carbon steel, quenched and tempered	16mm - 72mm	600	660	830
Tensile Strength: The maximum load in tension (pulling apart) which a material can withstand before breaking or fracturing. Yield Strength: The maximum load at which a material exhibits a specific permanent deformation. Proof Load: An axial tensile load which the product must withstand without evidence of any permanent set. 1MPa = 1N/mm2 = 145 pounds/inch2

Grade 8.8 Countersunk Bolt Dimension

Bolt Dia	Body Dia	Head Dia(F)			Head Height (H)		Degree of Slope
(D)	Max	Max Edge Sharp	Min Edge Sharp	Absolute Min Rounded	Max	Min
1/2	0.515	0.935	0.905	0.845	0.269	0.233	78° to 82°
5/8	0.642	1.169	1.132	1.066	0.336	0.292	78° to 82°
3/4	0.768	1.402	1.357	1.285	0.403	0.349	78° to 82°
7/8	0.895	1.637	1.584	1.511	0.47	0.408	78° to 82°
1	1.022	1.869	1.81	1.735	0.537	0.466	78° to 82°
1-1/8	1.149	2.104	2.037	1.962	0.604	0.525	78° to 82°
1-1/4	1.277	2.337	2.262	2.187	0.671	0.582	78° to 82°
1-3/8	1.404	2.571	2.489	2.414	0.738	0.641	78° to 82°
1-1/2	1.531	2.804	2.715	2.64	0.805	0.698	78° to 82°
Dimensions per ASME B18.5 1990 (R 1998)

Diameter Chart	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
Pitch List	0.7	0.8	1	1.25	1.5	1.75	2		2.5			3		3.5		4		4.5		5
GR A Length	40	50	60	80	100	120	140	150					Grade A not applicable to these dia’s
Head Across Flat (S) Nom = Max Min GR A GR B	7	8	10	13	16	18	21	24	27	30	34	36	41	46	50	55	60	65	70	75	80
	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67	33.38	35.38	GR A not applicable to these diameters
	6.64	7.64	9.64	12.57	15.57	17.57	20.16	23.16	26.16	29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1
Head Height Nom Tol + or – GR A GR B	2.8	3.5	4	5.3	6.4	7.5	8.8	10	11.5	12.5	14	15	17	18.7	21	22.5	25	26	28	30	33
	0.125	0.15			0.18				0.215				GR A not applicable to these diameters
	0.2	0.24			0.29				0.35					0.42							0.5
Across corners e Min GR A GR B	7.66	8.79	11.05	14.38	17.77	20.03	23.36	26.75	30.14	33.53	37.72	39.98	GR A not applicable to these diameters
Across corners e Min GR A GR B	7.5	8.63	10.89	14.2	17.59	19.85	22.78	26.17	29.56	32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
Thread Length (b) For lengths < or = 125ilimeter For lengths > 12ilimeter <= 200milimeter For lengths > 200ilimeter	14	16	18	22	26	30	34	38	42	46	50	54	60	66	Not specified as full thread recommended
	20	22	24	28	32	36	40	44	48	52	56	60	66	72	78	84	90	96	102	108	116
	33	35	37	41	45	49	53	57	61	65	69	73	79	85	91	97	103	109	115	121	129
Major Diameter at thread (minimum)	3.838	4.826	5.794	7.76	9.732	11.701	13.682	15.682	17.623	19.623	21.623	23.577	26.577	29.522	32.522	35.465	38.465	41.437	44.437	47.399	51.399
Major Dia at thread (maximum)	3.978	4.976	5.974	7.972	9.968	11.966	13.962	15.962	17.958

To Bs 1083-1965 Grade 8.8 Hex Bolts In Bsw/Bsf Threads

DIA	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1 1/8	1 1/4	1 3/8	1 1/2	1 3/4	2
BSW Pitch (TPI)	20	18	16	14	12	12	11	10	9	8	7	7		6	5	4.5
BSF PITCH (TPI)	26	22	20	18	16	16	14	12	11	10	9	9	8	8	7	7
Head Across Flat (S) Min Max	0.438	0.518	0.592	0.702	0.812	0.912	1.000	1.190	1.288	1.468	1.640	1.815	2.005	2.175	2.520	2.700
Head Across Flat (S) Min Max	0.445	0.525	0.600	0.710	0.820	0.920	1.010	1.200	1.300	1.480	1.670	1.860	2.050	2.220	2.580	2.760
Head height (K) Min Max	0.166	0.208	0.250	0.292	0.333	0.365	0.407	0.480	0.563	0.636	0.710	0.790	0.880	0.960	1.110	1.270
Head height (K) Min Max	0.176	0.218	0.260	0.302	0.343	0.375	0.417	0.500	0.583	0.666	0.750	0.830	0.920	1.000	1.170	1.330
Across corners e Max	0.51	0.61	0.69	0.82	0.95	1.06	1.17	1.39	1.50	1.71	1.93	2.15	2.37	2.56	2.98	3.19
Thread Length b Min	Twice the Dia (2D)
Major Dia at thread BSW (min)	0.2427	0.3046	0.3666	0.4285	0.4904	0.5527	0.6147	0.7390	0.8653	0.9897	1.1140	1.2388		1.4879	1.7369	1.9862
Major Dia at thread BSW (max)	0.2488	0.3112	0.3736	0.4360	0.4985	0.5609	0.6233	0.7482	0.8750	1.000	1.1250	1.250		1.500	1.750	2.000
Major Dia at thread BSF (min)	0.2432	0.3051	0.3671	0.4290	0.4910	0.5533	0.6153	0.7394	0.8658	0.9902	1.1148	1.2395	1.3640	1.4888	1.7380	1.9876
Major Dia at thread BSF (max)	0.2489	0.3113	0.3737	0.4361	0.4985	0.5610	0.6234	0.7482	0.8750	1.000	1.1250	1.250	1.375	1.500

we can help with all 8.8 Stainless Steel Bolts supply needs. offer Genuine price of 8.8 Screw and En 15048 Bolt

Dimensions chart of En 15048 Grade 8.8 Washers

DIA	M16	M20	M22	M24	M27	M30	M36
HARDNESS FOR PL. WASHER	35 TO 45 HRC
Hardness for Hot Dip Galvd washer	26 HRC
Outer Dia (Max) d2	34	42	44	50	56	60	72
Inner Dia (Min) d1	18	22	24	26	30	33	39
Thickness (S)	3.1 TO 4.6
Tolerance for OD Minus(-)	1.6				1.9
Tolerance for ID Plus(+)	0.43	0.52				0.62

To Bs 1768-1963 Grade 8.8 Hex Bolts Unc/Unf Threads

All dimensions in Inches

DIA	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1 1/8	1 1/4	1 3/8	1 1/2	1 3/4	2
UNC Pitch (TPI)	20	18	16	14	13	12	11	10	9	8	7	7	6	6	5	4.5
UNF Pitch (TPI)	28	24	24	24	20	20	18	16	14	12	NOT RECOMMENDED
Head Across Flat (S) Min Max	0.430	0.493	0.554	0.617	0.742	0.804	0.929	1.115	1.300	1.488	1.657	1.830	2.017	2.205	2.565	2.940
Head Across Flat (S) Min Max	0.437	0.500	0.562	0.625	0.750	0.812	0.937	1.125	1.312	1.500	1.687	1.875	2.062	2.250	2.625	3.000
Head Height (K) Min Max	0.153	0.201	0.233	0.281	0.313	0.361	0.393	0.463	0.543	0.597	0.678	0.773	0.838	0.934	1.074	1.203
Head Height (K) Min Max	0.163	0.211	0.243	0.291	0.323	0.371	0.403	0.483	0.563	0.627	0.718	0.813	0.878	0.974	1.134	1.263
Across corners e (MAX)	0.505	0.577	0.650	0.722	0.866	0.938	1.083	1.300	1.515	1.732	1.948	2.165	2.382	2.598	3.031	3.464
Thread Length b (Min)	2D + 1/4” upto bolt length of 6” and 2D + 1/2” for bolt lengths above 6”
Major Dia at thread ( Class 2A) Min for UNC	0.2408	0.3026	0.3643	0.4258	0.4876	0.5495	0.6113	0.7353	0.8592	0.9830	1.1064	1.2314	1.3544	1.4794	1.7268	1.9751
Major Dia at thread (2A) Min for UNF	0.2425	0.3042	0.3667	0.4281	0.4906	0.5524	0.6149	0.7391	0.8631	0.9868	NOT RECOMMENDED
Major Dia at thread Class 2A Max for UNC	0.2490	0.3113	0.3737	0.4361	0.4985	0.5609	0.6234	0.7482	0.8731	0.9980	1.1228	1.2478	1.3726	1.4976	1.7473	1.9971

Check 8.8 Bolt Material Specification, properties and equivalent chart online

Class 8.8 Hex Nuts Dimensions

**All measurements in millimeters**

DIA	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
Pitch	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5
Across Flat (S) Max Min	7	8	10	13	16	18	21	24	27	30	34	36	41	46	50	55	60	65	70	75	80
Across Flat (S) Max Min	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.16	29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1
Thickness (M) Max Min	3.2	4.7	5.2	6.8	8.4	10.8	12.8	14.8	15.8	18	19.4	21.5	23.8	25.6	28.7	31	33.4	34	36	38	42
Thickness (M) Max Min	2.9	4.4	4.9	6.44	8.04	10.37	12.1	14.1	15.1	16.9	18.1	20.2	22.5	24.3	27.4	29.4	31.8	32.4	34.4	36.4	40.4
Across corners (E) Min	7.66	8.79	11.05	14.38	17.77	20.03	23.35	26.75	29.56	32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
Minor Dia at thread (min)	3.242	4.134	4.917	6.647	8.376	10.106	11.835	13.835	15.294	17.294	19.294	20.752	23.752	26.211	29.211	31.67	34.67	37.129	40.129	42.587	46.587
Minor Dia at thread (max)	3.422	4.334	5.153	6.912	8.676	10.441	12.210	14.210	15.744	17.774	19.774	21.252	24.252	26.771	29.771	32.27	35.27	37.799	40.799	43.297	47.297

To Bs 1768-1963 Threads To Bs 1580 Grade 8.8 Hex Nuts In Unc/Unf Threads

All dimensions in inches

DIA	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1 1/8	1 1/4	1 3/8	1 1/2	1 3/4	2
UNC Pitch (TPI)	20	18	16	14	13	12	11	10	9	8	7	7	6	6	5	4.5
UNF Pitch (TPI)	28	24	24	24	20	20	18	16	14	12	NOT RECOMMENDED
Width Across Flat (S) Min Max	0.430	0.493	0.554	0.617	0.742	0.804	0.929	1.115	1.300	1.488	1.657	1.830	2.017	2.205	2.565	2.940
Width Across Flat (S) Min Max	0.437	0.500	0.562	0.625	0.750	0.812	0.937	1.125	1.312	1.500	1.687	1.875	2.062	2.250	2.625	3.000
Thickness (M) Min Max	0.214	0.261	0.323	0.370	0.432	0.479	0.542	0.631	0.740	0.844	0.949	1.037	1.147	1.251	1.470	1.684
Thickness (M) Min Max	0.224	0.271	0.333	0.380	0.442	0.489	0.552	0.651	0.760	0.874	0.989	1.087	1.197	1.311	1.530	1.754
Across corners (E) Max	0.505	0.577	0.650	0.722	0.866	0.938	1.083	1.300	1.515	1.732	1.948	2.165	2.382	2.598	3.031	3.464
Minor Dia at thread (min) UNC (2B)	0.1960	0.2520	0.3070	0.3600	0.4170	0.4720	0.5270	0.6420	0.7550	0.8650	0.9700	1.0950	1.1950	1.3200	1.5340	1.7590
Minor Dia at thread (max) UNC (2B)	0.2070	0.2650	0.3210	0.3760	0.4340	0.4900	0.5460	0.6630	0.7780	0.8900	0.9980	1.1230	1.2250	1.3500	1.5680	1.7950
Minor Dia at thread (min) UNF (2B)	0.2110	0.2670	0.3300	0.3830	0.4460	0.5020	0.5650	0.6820	0.7980	0.9100	NOT RECOMMENDED
Minor Dia at thread (max) UNF (2B)	0.2200	0.2770	0.3400	0.3950	0.4570	0.5150	0.5780	0.6960	0.8140	0.9280	NOT RECOMMENDED

To Is 6623-1985 Grades 8s & 10s High Strength Friction Grip Hex Nuts In Mm Threads

All dimensions in mm

DIA	M16	M20	M22	M24	M27	M30	M36
Pitch	2	2.5	2.5	3	3	3.5	4
Head Across Flat (B) Min	26.16	33	35	40	45	49	58.8
Head Across Flat (B) Max	27	34	36	41	46	50	60
Height (H) Min Max	16.4	19.4	22.3	22.9	26.3	29.1	35
Height (H) Min Max	17.1	20.7	23.6	24.2	27.6	30.7	36.6
Across corners C min	29.56	37.29	39.55	45.20	50.85	55.37	66.44
Minor Dia at thread (min)	14.235	17.694	19.694	21.202	24.252	26.761	32.270
Minor Dia at thread (max)	14.610	18.144	20.144	21.702	24.752	27.321	32.870

Dimensions of Din 933 Grade 8.8 Screw

Dimensions of Din 933 Grade 8.8 Standard Hex Screw

DIA	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
Pitch	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4	4.5	4.5	5	5
Grade A upto length	40	50	60	80	100	120	140	150					Grade A not applicable to these dia’s
Head Across Flat (S) Max Min(Grade A) Min (Grade B)	7	8	10	13	16	18	21	24	27	30	34	36	41	46	50	55	60	65	70	75	80
	6.78	7.78	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67	33.38	35.38	Grade A not applicable to these dia’s
	6.64	7.64	9.64	12.57	15.57	17.57	20.16	23.16	26.16	29.16	33	35	40	45	49	53.8	58.8	63.1	68.1	73.1	78.1
Head Thickness (K) Tol + or – Grade A Grade B	2.8	3.5	4	5.3	6.4	7.5	8.8	10	11.5	12.5	14	15	17	18.7	21	22.5	25	26	28	30	33
	0.125	0.15			0.18				0.215				Grade A not applicable to these dia’s
	0.2	0.24			0.29				0.35					0.42							0.5
Across corners e Min Grade A Min Grade B	7.66	8.79	11.05	14.38	17.77	20.03	23.36	26.75	30.14	33.53	37.72	39.98	Grade A not applicable to these dia’s
Across corners e Min Grade A Min Grade B	7.5	8.63	10.89	14.2	17.59	19.85	22.78	26.17	29.56	32.95	37.29	39.55	45.2	50.85	55.37	60.79	66.44	71.3	76.95	82.6	88.25
Major Dia at thread (min)	3.838	4.826	5.794	7.76	9.732	11.701	13.682	15.682	17.623	19.623	21.623	23.577	26.577	29.522	32.522	35.465	38.465	41.437	44.437	47.399	51.399
Major Dia at thread (max)	3.978	4.976	5.974	7.972	9.968	11.966	13.962	15.962	17.958	19.958	21.958	23.952	26.952	29.947	32.947	35.94	38.94	41.937	44.937	47.929	51.929

Grade 8.8 Hex Nuts In Bsw/Bsf Threads To Bs 1083-1965 Threads To Bs 84

All dimensions in inches

DIA	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1 1/8	1 1/4	1 3/8	1 1/2	1 3/4	2
BSW Pitch (TPI)	20	18	16	14	12	12	11	10	9	8	7	7	–	6	5	4.5
BSF PITCH (TPI)	26	22	20	18	16	16	14	12	11	10	9	9	8	8	7	7
WIDTH Across Flat (S) Min Max	0.438	0.518	0.592	0.702	0.812	0.912	1.000	1.190	1.288	1.468	1.640	1.815	2.005	2.175	2.520	2.700
WIDTH Across Flat (S) Min Max	0.445	0.525	0.600	0.710	0.820	0.920	1.010	1.200	1.300	1.480	1.670	1.860	2.050	2.220	2.580	2.760
Thickness (M) Min Max	0.190	0.240	0.302	0.365	0.427	0.490	0.552	0.677	0.740	0.865	0.990	1.105	1.230	1.355	1.605	1.730
Thickness (M) Min Max	0.200	0.250	0.312	0.375	0.437	0.500	0.562	0.687	0.750	0.875	1.000	1.125	1.250	1.375	1.625	1.750
Across corners (Max inches)	0.51	0.61	0.69	0.82	0.95	1.06	1.17	1.39	1.50	1.71	1.93	2.15	2.37	2.56	2.98	3.19
Minor Dia at thread BSW (min)	0.1860	0.2413	0.2950	0.3461	0.3932	0.4557	0.5086	0.6220	0.7328	0.8400	0.9420	1.0670	–	1.2866	1.4938	1.7154
Minor Dia at thread BSW (max)	0.2030	0.2594	0.3145	0.3674	0.4169	0.4794	0.5338	0.6490	0.7620	0.8720	0.9776	1.1026	–	1.3269	1.5408	1.7668
Minor Dia at thread BSF (min)	0.2008	0.2543	0.3110	0.3663	0.4200	0.4825	0.5336	0.6432	0.7586	0.8720	0.9828	1.1078	1.2150	1.3400	1.5670	1.8170
Minor Dia at thread BSF (max)	0.2125	0.2684	0.3280	0.3844	0.4395	0.5020	0.5549	0.6669	0.7838	0.8990	1.0120	1.1370	1.2470	1.3720	1.6026	1.8526

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Size Chart of 8.8 Stainless Steel Bolts

grade 8.8 bolt tensile/ yield strength

Grades	Size Range	PS [MPa]	YS (min) [MPa]	TS (min) [MPa]
Class 8.8	Under M16	580	640	800
Class 8.8	17-72	600	660	830

8.8 grade bolt hardness

Grades	Size Range	Hardness [Rockwell]
Class 8.8	Under M16
Class 8.8	17-72	C23–34