Class 12.9 Bolts

Grade 12.9 Hex Bolts manufacturer in india guaranteed best price in india, check Yfs 012.9 Bolt torque

Grade 12.9 Bolt belongs to the ASTM F568 specification. And the specification has bolts, screws and other fasteners. Viha Steel & Forging is a leading manufacturer and supplier of the Class 12.9 Bolts in different dimensions. The size ranges from M1.6 to M100. The bolts are stronger and corrosion resistant. The class 12.9 Hex Head Bolts are made from this material with 1220MPa minimum tensile strength.

So the Yfs 012.9 Bolt is quenched and tempered to get this kind of high tensile strength. Due to this reason, the high tensile bolts 12.9 grade are also known as high tensile bolts. The high tensile bolts are needed for applications with high tensile strength requirements such as bridges, construction sites, engineering applications, piping and others. The Grade 12.9 Imperial Bolt are measured in inches while the metric bolts are measured in millimeters. There are different types of bolts with different heads and different threads. The heads range from hex, square to allen head.

The Grade 12.9 M10 Bolt has a 10mm diameter and is one of the commonly used sizes. The larger sized bolts are used in larger construction type applications where the smaller ones are used in stronger equipment types. The 12.9 Grade Allen Bolt is used with the help of allen keys to drive and loosen them. As a leading manufacturer, we supply the bolts in different dimensions and standards. Please feel free to contact us for more information on the 12.9 Metric Bolts, other types and the prices.

Table Of Content

yfs 12.9 bolt torque
Class 12.9 Bolt Chemical Structure
Grade 12.9 Hex Bolt Yield Strength
Markings on Class 12.9 Material
Material Specification Chart Of Class 12.9 Bolts
Most Selling Types of Yfs 012.9 Bolt
Class 12.9 Hex Bolt Dimensions
Price list of Grade 12.9 Bolts
Class 12.9 Nuts Dimensions
Dimensions of Class 12.9 Hex Screw
Yfs 012.9 Bolt Other Types
Class 12.9 Metric Bolts Size Chart

yfs 12.9 bolts torque

(Class 12.9 Bolts Torque in foot-pounds)

		Class 12.9 Hex head						Class 12.9 Socket head cap screws
		Grade 5		Grade 7		Grade 8		Class 12.9 Socket head cap screws
Bolt Dia.	Thread per inch	Dry	Oiled	Dry	Oiled	Dry	Oiled	Dry	Oiled
1/4	20	8	6	10	8	12	9	14	11
1/4	28	10	7	12	9	14	10	16	13
5/16	18	17	13	21	16	25	18	29	23
5/16	24	19	14	24	18	29	20	33	26
3/8	16	30	23	40	30	45	35	49	39
3/8	24	35	25	45	35	50	40	54	44
7/16	14	50	35	60	45	70	55	76	61
7/16	20	55	40	70	50	80	60	85	68
1/2	13	75	55	95	70	110	80	113	90
1/2	20	90	65	100	80	120	90	126	100
9/16	12	110	80	135	100	150	110	163	130
9/16	18	120	90	150	110	170	130	181	144
5/8	11	150	110	140	190	220	170	230	184
5/8	18	180	130	210	160	240	180	255	204
3/4	10	260	200	320	240	380	280	400	320
3/4	16	300	220	360	280	420	320	440	350
7/8	9	430	320	520	400	600	460	640	510
7/8	14	470	360	580	440	660	500	700	560
1	8	640	480	800	600	900	680	980	780
1	12	710	530	860	666	990	740	1060	845
Proper torque spec varies depending on the material, bolt grade or if lubrication is used such as oil, wax, or anti-seize. Always go to the manufacturer for proper torque specifications. The chart above is an approximate estimate of torque values and have not been validated for accuracy. The numbers above have been compiled from various machine builder specs and other resources.

(Class 12.9 Bolts Torque in pounds/foot)

Class 12.9 Hex head cap screws		Class 12.9 Socket head cap screws
Socket head cap screw	Class 8.8	Class 10.9	Class 12.9
M4 x .70	1.65		3.3
M5 x .80	4.13		6.9
M6 x 1.0	7.1	11	11.6
M7 x 1.0	12
M8 x 1.0	18
M8 x 1.25	17	26	29
M10 x 1.0	39.
M10 x 1.25	36
M10 x 1.5	34	51	57
M12 x 1.25	65
M12 x 1.5	63
M12 x 1.75	59	88	99
M14 x 1.5	102
M14 x 2	94	139	158
M16 x 2	146	210	250
M18 x 2.5	210		341
M20 x 2.5	292		489
			Grade 10.9 (below)
M22			559
M24			705
M30			1316
Proper torque spec varies depending on the material, bolt grade or if lubrication is used such as oil, wax, or antisieze. Always go to the manufacturer for proper torque specs. The chart above is approximate values and have not been validated for accuracy. The numbers above have been compiled from a couple different machine builders factory bolt spec settings.

Class 12.9 Bolts Chemical Structure

Carbon Steel Class 12.9 Bolts	C	P	S	B
Carbon Steel Class 12.9 Bolts	0.28-0.5	0.025	0.025	0.003

Grade 12.9 Hex Bolt Yield Strength

Nominal thread diameter size range [mm]	Proof strength [MPa]	Yield strength (min) [MPa]	Tensile strength (min) [MPa]	Hardness [Rockwell]
1.6–100	970	1100	1220	C39–44

Markings on Class 12.9 Material

Grades	Markings	Size Range	PS [MPa]	YS (min) [MPa]	TS (min) [MPa]	Hardness [Rockwell]
Class 12.9 Bolts		1.6–100	970	1100	1220	C38–44

Material Specification Chart Of Class 12.9 Bolts

Class 12.9 Bolts	Alloy steel ; Quenched and Tempered

Grades	DIN 933 Grade 12.9
Class 12.9 Bolts Standard	ASTM F568, ASME SF568
finish	Plain /Zinc plated / Hot dip galvanised
Class 12.9 Bolts Size	Dia 1.6mm to 100 mm Inch 3/4" to 3.1/2"

Renowned suppliers of high tensile bolts 12.9 allen bolt, view 12.9 Metric Bolts hardness and price here

Most Selling Types of Yfs 012.9 Bolts

Class 12.9 Bolts

Yfs 012.9 Bolt

12.9 Metric Bolts

Grade 12.9 Bolts

To Din 6916 Hardened And Tempered Washers

Class 12.9 All dimensions in mm

Class 12.9 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
Class 12.9 Inner Dia (Min) d1	13	17	21	23	25	28	31	37
Thickness (S)	3	4	4	4	4	5	5	6
Class 12.9 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

Class 12.9 Hex Bolt Dimensions

**Class 12.9 Bolts All measurements in millimeters**

Class 12.9 Bolts 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
Class 12.9 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
Class 12.9 Bolts 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 12.9 Bolts

Class 12.9 Bolts Price List	Price
Class 12.9 high strength hexagonal screw M2	₹ 0.7059-₹ 7.06 / Ton
Sleeve Bolt High Strength Class 12.9 Hex Bolts	₹ 11.30-₹ 28.24 / Piece
Class 12.9 Hex Head Bolts M8	₹ 0.353-₹ 70.59 / Piece
half thread and full threaded high tensileClass 12.9 hex bolts	₹ 0.0706-₹ 60.71 / Piece

To Bs 1083-1965 12.9 Grade Hex Bolts In Bsw/Bsf Threads

Class 12.9 Bolts 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
Class 12.9 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
Class 12.9 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 stock and produce yfs 12.9 Metric Hex Head Bolts in various size, check Grade 12.9 Vs Grade 8 diffrence

Most popular countries buy Class 12.9 Bolts from us

Chile, Philippines, Iran, Canada	12.9 Class Multi Specification Flange Bolts
Norway, Romania, Europe, United Arab Emirates (UAE)	Class 12.9 Torx Head Bolts with Alloy Steel Plain No Finish
Brazil, Russia, Malaysia, Sweden, Netherlands	35CrMoA High Strength Hex Bolts Class 12.9 Full Threaded
Egypt, Los Alamos -Mexico, Malaysia, Mexico	Class 12.9 DIN 931/933, ISO4014/4017 Hex Bolts
United Kingdom -UK, NY 12203 (USA), Singapore, Malaysia	Class 12.9 ISO 8677 DIN 603 Round Mushroom Head Square Neck Carriage Bolts with Nut
UK, Dammam -KSA, Philippines, Poland	12.9 Class Black Track Bolts of Rail Fastener
Singapore, Europe, Qatar, Malaysia	M8 Cylinder Head Screw Cylinder Head Bolts Class 12.9
Malaysia, Thailand, Czechia, Japan	Fastener Timber Bolts Class 12.9 Zp with Ce Certificate
Colombia, China, Malaysia, Bangladesh	High Strength Class 12.9, Flange Bolts, Hex Foundation Bolts
Kuwait, South Africa, Philippines, Taiwan	DIN 21346 M16-M30 Large High Strength Square Head Bolts Class 12.9
Malaysia, Singapore, Bahrain, South Korea	DIN 933 DIN 931 HDG Hex Bolts Class 12.9
Belgium, UK, Philippines, Indonesia	Class 12.9 Domed Head Screw Plow Bolts M14 M16
Thailand, Hong Kong, Oman, France	DIN 933 Full Thread Hex Bolts Class 12.9
Malaysia, Germany, Turkey	Class 12.9 Blackened High Strength Bolts
Finland, Malaysia, Dubai, USA	DIN 931 Half Thread Hex Bolts Class 12.9
Brazil, Spain, UK, Saudi Arabia (KSA)	12.9 Class Full Buckle Bolts
Singapore, Europe, UAE, South Africa	DIN933 Class 12.9 Hex Bolts

Dimensions chart of class 12.9 Washers

Class 12.9 washer 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
Class 12.9 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 12.9 Grade Hex Bolts Unc/Unf Threads

Class 12.9 Bolts All dimensions in Inches

Class 12.9 Bolts 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
Class 12.9 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

we maintain yfs 012.9 screw in ready stock, see tvs 12.9 bolt Shear Strength and Material Equivalent

Class 12.9 Nuts Dimensions

**Class 12.9 Nuts All measurements in millimeters**

Class 12.9 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 class 12.9 Hex Nuts In Unc/Unf Threads

Class 12.9 Nuts All dimensions in inches

Class 12.9 Nuts 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

Class 12.9 Nuts All dimensions in mm

Class 12.9 Nuts 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
Class 12.9 Height (H) Min Max	16.4	19.4	22.3	22.9	26.3	29.1	35
Class 12.9 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 Class 12.9 Hex Screw

Dimensions of Grade 12.9 Standard Hex Screw

Class 12.9 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
Class 12.9 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

Class 12.9 Hex Nuts In Bsw/Bsf Threads To Bs 1083-1965 Threads To Bs 84

Class 12.9 Hex Nuts All dimensions in inches

Class 12.9 Nuts 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

Are you searching for Class 12.9 bolts Specification ? find here allen bolt 12.9 grade complete information

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Class 12.9 Metric Bolts Size Chart