ASTM A320 Grade B8m Bolts and SA 320 B8m Class 2 Stud Bolt/ Fasteners

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A320 B8m Class 2 Stud Bolts and Nuts manufacturer in India

ASTM A320 B8m is similar to ASTM A320 B8 but instead it is manufactured from stainless steel 316 as opposed to stainless steel 304. Although type 316 stainless is more expensive but it offers superior corrosion resistance compared to 304 stainless steels. A320 B8m Class 2 fasteners require an additional strain hardening operation. ASTM A320 B8m Class 2 does not require an impact test. ASTM A320 B8m exhibits improved chloride corrosion resistance due to the addition of molybdenum. It offers acceptable corrosion resistance to marine atmosphere when pitting corrosion is concern. It provides good chemical resistance to most agents used in the petrochemical, food, dairy and paper industries. It is widely used for an application which requires corrosion resistance or good elevated temperature strength. ASTM A320 B8m Class 2 exhibits excellent ductility and it can be easily roll formed, deep drawn and bent, in the annealed condition. Annealing is important to restore ductility and to lower hardness for subsequent forming operations.

ASTM A320 Grade B8m Bolts

ASTM A320 B8m Fasteners

A320 B8m Nuts

A320 B8m Hex Bolts

ASTM A320 Grade B8m Stud Bolts

ASTM A320 Grade B8m Threaded Rod

Looking for ISO metric A320 B8m Class 2 Hex Bolts manufacturers in India? Providing largest range of ASTM A320 B8m Threaded Rod, Studs, Screws, Washer and Hex Nuts in Mumbai

ASTM A320 Grade B8m Bolts Specifications
SS ASTM A320 Grade B8m Hex Bolts Dimensions
A320 B8m Class 2 Hex Nuts Dimensions
ASTM A320 B8m Class 2 Flat Washer Dimensions
AISI 316 Stainless Steel A320 B8m Socket Head Cap Screw Dimensions
ASTM A320 Grade B8m Bolts Type
A320 Grade B8m Nuts Types
ASTM A320 B8m Stud Bolt Type
A320 Grade B8m Screws Types
ASTM A320 Grade B8m Washers Types
SA 320 B8m Class 2 Nuts Sizes
ASTM A320 B8m Class 2 Screws Sizes
AISI 316 Stainless Steel A320 B8m Washer Sizes
ASTM A320 B8m Bolts Sizes
Chemical Composition of SS ASTM A320 Grade B8m Hex Bolts
Mechanical Properties of A320 B8m Class 2 Nut Bolt
ASTM A320 B8m Class 2 Fasteners Equivalent Grade
A320 Grade B8m Bolts Price List
ASTM A320 Grade B8m Bolts Weight Calculator

ASTM A320 Grade B8m Bolts Specifications

A320 B8m Class 2 Bolts Metric Size range	Dia: M10 - M110 Length: 12 - 1200MM
ASTM A320 Grade B8m Hex Bolts Size Inch / Imperial	Dia: 1/2" - 4.0" Length: 1/2" - 52"
Standard	Manufacturer of ASTM A320 Grade B8m Bolts as per JIS, GB, IS, CSN, ANSI, ASTM, DIN, ASME, IFI, ISO, PN, UNI, BS, EU, and all International Standards German DIN ANSI B 18.2.4 2M Indian IS ANSI B 28.2.4 1M Spanish CSN GB/T5783, GB/T5782, GB5783 American ASME European EU International ISO American SAE Italian UNI Polish PN British BS ANSI - American National Standards Institute
ASTM A320 Grade B8m Bolts Length	3 mm to 200 mm
AISI 316 Stainless Steel A320 B8m Bolts & Screws US Threads	Unified national extra fine (UNEF), METRIC, Unified national coarse (UNC), Unified national fine (UNF), BSW, UNJC, UNJF, UNK, BSF, UNR, Constant-pitch threads
ASTM A320 Grade B8m Bolts Head drive	Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Material Origin	ASTM A320 Grade B8m Bolts are Western European. Eastern origin possible on request.
ASTM A320 B8m Class 2 Fasteners types	Screws, Bolts, Sockets, Wing Screw, J Bolts, Nut, Spring Washers, Hexagon Nut, Square Nut, Foundation Bolts, Cap Screw, Socket Screw, Socket Head Cap Screw, Machine Screw, Nuts, Anchor Bolt, Hex Coupling Nut, Eye Bolt, Hex Nut, Socket Hexagon Head Screw, Studs, Hex Domed Cap Nuts, Studs, Pan Head Screw, Structural Bolts, Stud Bolts, Screw, U Bolts, Allen Cap screw, T-Head Bolts, Washers, Anchors, Hex Head Bolts, Mushroom Head Square Neck Bolts, Wing Screw, Hex Set Screw, Marine Anchors
ASTM A320 Grade B8m Bolts UTS - Unified Thread Standard	UNC, UNS, UNEF, NPT, UNF, NPTF
Why Jignesh Steel?	An Indian manufacturer, established in Year 2008 Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America Best Price in India compared to ASTM A320 Grade B8m Bolts manufacturers in China Highly professional and technical team Always final Inspection before shipment Pre-production ASTM A320 B8m Fasteners sample before mass production High precision threads
MOQ	5 pieces
Preferred SS ASTM A320 Grade B8m Nut Bolt Drawing Formats	JPEG, PDF, CAD, STP, IGS
ASTM A320 Grade B8m Nut Bolt Surface Finish & Coating	Sherardized, Hot Dip Galvanised (HDG), Zinc, Self-Colour, Bright Zinc Plated (BZP), Geometry, Plated zinc-nickel, Nickel plated, Anodizing, black oxide, Dacroment, Stainless Steel Passivated
Ask for Test Certificates from ASTM A320 Grade B8m Bolts manufacturers	Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1, A320 B8m Class 2 Bolts Tensile testing to ISO 898-1 Hardness testing to ISO 6508-1 Suitability for preloading to EN 14399-2 Tri-Roll Thread Comparators ASTM A320 B8m Class 2 Bolts Charpy Impact testing in accordance with ISO 148-1 Suitability test for calibrated preload to EN 14399-10 Nut proof load testing to ISO 898-2 Calibrated gauges and tools
Free Samples	Yes
Delivery time	Regular product is about 7-15 days
Port of Dispatch	Mumbai or Kalamboli ports in Maharashtra state of India
AISI 316 Stainless Steel A320 B8m Fasteners Application and Uses	Construction, Industrial, Wind tower, Railway, Nuclear power, Electronic, and Automotive industry
Payment Terms	T/T, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
ISO - International Organization for Standardization	ISO 4014 Hex Bolt ISO 4017 Hex Head Screw ISO 4032 Nut ISO 4162 Flange Bolts ISO 4161 Flange Nut

SS ASTM A320 Grade B8m Hex Bolts Dimensions

Heavy Hex Bolt Diameter	D	F			C		H
	Body Diameter	Width Across Flats			Width Across Corners		Height
	Max	Basic	Max	Min	Max	Min	Basic	Max	Min
1/2	0.515	7/8	0.875	0.850	1.010	0.969	11/32	0.364	0.302
5/8	0.642	1-1/16	1.062	1.031	1.227	1.175	27/64	0.444	0.378
3/4	0.768	1-1/4	1.250	1.212	1.443	1.383	1/2	0.524	0.455
7/8	0.895	1-7/16	1.438	1.394	1.660	1.589	37/64	0.604	0.531
1	1.022	1-5/8	1.625	1.575	1.876	1.796	43/64	0.700	0.591
1-1/8	1.149	1-13/16	1.812	1.756	2.093	2.002	3/4	0.780	0.658
1-1/4	1.277	2	2.00	1.938	2.309	2.209	27/32	0.876	0.749
1-3/8	1.404	2-3/16	2.188	2.119	2.526	2.416	29/32	0.940	0.810
1-1/2	1.531	2-3/8	2.375	2.300	2.742	2.622	1	1.036	0.902
1-3/4	1.785	2-3/4	2.750	2.662	3.175	3.035	1-5/32	1.196	1.054
2	2.039	3-1/8	3.125	3.025	3.608	3.449	1-11/32	1.388	1.175
2-1/4	2.305	3-1/2	3.500	3.388	4.041	3.862	1-1/2	1.548	1.327
2-1/2	2.559	3-7/8	3.875	3.750	4.474	4.275	1-21/32	1.708	1.479

A320 B8m Class 2 Hex Nuts Dimensions

ASTM A320 B8m Class 2 Metric Nut Dimensions Chart in mm

SS ASTM A320 Grade B8m Metric Nut Size	Thread Pitch	s		e	m
		Width Across Flats		Width Across Corners	Height of the A320 B8m Class 2 Nut
		max.	min.	min.	max.	min.
M1.6	0.35	3.20	3.02	3.41	1.30	1.05
M2	0.4	4.00	3.82	4.32	1.60	1.35
M2.5	0.45	5.00	4.82	5.45	2.00	1.75
M3	0.5	5.50	5.32	6.01	2.40	2.15
M3.5*	0.6	6.00	5.82	6.58	2.80	2.55
M4	0.7	7.00	6.78	7.66	3.2	2.9
M5	0.8	8.00	7.78	8.79	4.7	4.4
M6	1	10.00	9.78	11.05	5.2	4.9
M8	1.25	13.00	12.73	14.38	6.80	6.44
M10	1.5	16.00	15.73	17.77	8.40	8.04
M12	1.75	18.00	17.73	20.03	10.80	10.37
M14*	2	21.00	20.67	23.36	12.8	12.1
M16	2	24.00	23.67	26.75	14.8	14.1
M18*	2.5	27.00	26.16	29.56	15.8	15.1
M20	2.5	30.00	29.16	32.95	18.0	16.9
M22*	2.5	34	33	37.29	19.4	18.1
M24	3	36	35	39.55	21.5	20.2
M27*	3	41	40	45.2	23.8	22.5
M30	3.5	46	45	50.85	25.6	24.3
M33*	3.5	50	49	55.37	28.7	27.4
M36	4	55.0	53.8	60.79	31.0	29.4
M39*	4	60.0	58.8	66.44	33.4	31.8
M42	4.5	65.0	63.1	71.3	34.0	32.4
M45*	4.5	70.0	68.1	76.95	36.0	34.4
M48	5	75.0	73.1	82.6	38.0	36.4
M52*	5	80.0	78.1	88.25	42.0	40.4
M56	5.5	85.0	82.8	93.56	45.0	43.4
M60*	5.5	90.0	87.8	99.21	48.0	46.4
M64	6	95.0	92.8	104.86	51.0	49.1

Notes:

* Non-preferred threads according to standard.
All dimensions are given in mm millimeters.

ASTM A320 B8m Class 2 Flat Washer Dimensions

ISO 7089 SS ASTM A320 Grade B8m Flat Washer dimensions (all units in mm)

For Screw Nominal Size	Hole Diameter	Outside Diameter (OD)	A320 B8m Class 2 Washer Thickness
M1.6	1.7	4	0.3
M2	2.2	5	0.3
M2.5	2.7	6	0.5
M2.6	2.8	7	0.5
M3	3.2	7	0.5
M3.5	3.7	8	0.5
M4	4.3	9	0.8
M5	5.3	10	1
M6	6.4	12	1.6
M7	7.4	14	1.6
M8	8.4	16	1.6
M10	10.5	20	2
M12	13	24	2.5
M14	15	28	2.5
M16	17	30	3
M18	19	34	3
M20	21	37	3
M22	23	39	3
M24	25	44	4
M27	28	50	4
M30	31	56	4
M33	34	60	5
M36	37	66	5
M39	40	72	6
M42	43	78	7
M45	46	85	7
M48	50	92	8
M52	54	98	8
M56	58	105	9

AISI 316 Stainless Steel A320 B8m Socket Head Cap Screw Dimensions

American National Standard ANSI/ASME B18.3.1M SS ASTM A320 Grade B8m Socket Head Cap Screws

A320 B8m Class 2 Screw Nom. Size Thread Pitch	Body Diameter D		Head Diameter A		Head Height H		Chamfer or Radius S	Hexagon Socket Size J	Spline Socket Sizea M	Key Engagement T	Transition Dia. B
A320 B8m Class 2 Screw Nom. Size Thread Pitch	Max	Min	Max	Min	Max	Min	Max	Nom.	Nom.	Min	Max
M1.6 × 0.35	1.60	1.46	3.00	2.87	1.60	1.52	0.16	1.5	1.829	0.80	2.0
M2 × 0.4	2.00	1.86	3.80	3.65	2.00	1.91	0.20	1.5	1.829	1.00	2.6
M2.5 × 0.45	2.50	2.36	4.50	4.33	2.50	2.40	0.25	2.0	2.438	1.25	3.1
M3 × 0.5	3.00	2.86	5.50	5.32	3.00	2.89	0.30	2.5	2.819	1.50	3.6
M4 × 0.7	4.00	3.82	7.00	6.80	4.00	3.88	0.40	3.0	3.378	2.00	4.7
M5 × 0.8	5.00	4.82	8.50	8.27	5.00	4.86	0.50	4.0	4.648	2.50	5.7
M6 × 1	6.00	5.82	10.00	9.74	6.00	5.85	0.60	5.0	5.486	3.00	6.8
M8 × 1.25	8.00	7.78	13.00	12.70	8.00	7.83	0.80	6.0	7.391	4.00	9.2
M10 × 1.5	10.00	9.78	16.00	15.67	10.00	9.81	1.00	8.0	…	5.00	11.2
M12 × 1.75	12.00	11.73	18.00	17.63	12.00	11.79	1.20	10.0	…	6.00	14.2
M14 × 2b	14.00	13.73	21.00	20.60	14.00	13.77	1.40	12.0	…	7.00	16.2
M16 × 2	16.00	15.73	24.00	23.58	16.00	15.76	1.60	14.0	…	8.00	18.2
M20 × 2.5	20.00	19.67	30.00	29.53	20.00	19.73	2.00	17.0	…	10.00	22.4
M24 × 3	24.00	23.67	36.00	35.48	24.00	23.70	2.40	19.0	…	12.00	26.4
M30 × 3.5	30.00	29.67	45.00	44.42	30.00	29.67	3.00	22.0	…	15.00	33.4
M36 × 4	36.00	35.61	54.00	53.37	36.00	35.64	3.60	27.0	…	18.00	39.4
M42 × 4.5	42.00	41.61	63.00	62.31	42.00	41.61	4.20	32.0	…	21.00	45.6
M48 × 5	48.00	47.61	72.00	71.27	48.00	47.58	4.80	36.0	…	24.00	52.6

ASTM A320 Grade B8m Bolts Type

SS ASTM A320 Grade B8m Flange Bolts

ASTM A320 B8m Class 2 Square Bolts

AISI 316 Stainless Steel A320 B8m Heavy Hex Bolts

A320 B8m Class 2 Hex Bolts

ASTM A320 B8m U Bolts

SA320 B8m SS 316 Eye Bolts

AISI 316 Stainless Steel A320 B8m Anchor Bolts

ASTM A320 B8m Class 2 Carriage Bolts

SS ASTM A320 Grade B8m Lag Bolts

ASTM A320 B8m Allen Cap Bolt

A320 B8m Class 2 Hex Head Bolts

SA320 B8m SS 316 Countersunk Bolts

A320 Grade B8m Nuts Types

ASTM A320 B8m Lock Nuts

SA320 B8m SS 316 Panel Nuts

ASTM A320 B8m Class 2 T-Nuts For Wood

A320 B8m Class 2 Square Nuts

ASTM A320 B8m Wing Nuts

AISI 316 Stainless Steel A320 B8m Heavy Hex Nuts

A320 B8m Class 2 Hex Nuts

SS ASTM A320 Grade B8m Eye Nuts

ASTM A320 B8m Class 2 Jam Nuts

AISI 316 Stainless Steel A320 B8m Wheel Nuts and Caps

SA320 B8m SS 316 Cage Nuts and Spring Nuts

Stainless Steel A320 Gr B8m Self Locking Nuts

ASTM A320 Grade B8m Stud Bolt Type

SS ASTM A320 Grade B8m Stud Bolts

A320 B8m Class 2 Tie Rod

ASTM A320 B8m Threaded Rod

ASTM A320 B8m Class 2 Fully Threaded Studs

AISI 316 Stainless Steel A320 B8m Double Ended Studs

SA320 B8m SS 316 Unc Stud Bolt

A320 Grade B8m Screws Types

ASTM A320 Grade B8m Class 2 Tek Screws

Stainless Steel A320 Gr B8m Deck Screws

SS ASTM A320 Grade B8m Socket Head Cap Screw

SS ASTM A320 Grade B8m Eye Screw

ASTM A320 Grade B8m Class 2 Concrete Screws

AISI 316 Stainless Steel A320 B8m Thumb Screw

A320 B8m Class 2 Wood Screw

ASTM A320 B8m Class 2 Coach Screw

SA320 B8m SS 316 12-Point Flange Head Cap Screws

A320 B8m Class 2 Wing Screw

AISI 316 Stainless Steel A320 B8m Hex Cap Screw

ASTM A320 B8m Allen Cap Screw

ASTM A320 B8m Class 2 Captive Panel Screws

SA320 B8m SS 316 Grub Screw

Stainless Steel A320 Gr B8m Fully Threaded Screw

Stainless Steel A320 Gr B8m Pan Head Screw

ASTM A320 Grade B8m Class 2 Truss Head Screw

ASTM A320 Grade B8m Class 2 Torx Screw

SS ASTM A320 Grade B8m Flat Head Screw

ASTM A320 Grade B8m Washers Types

SS ASTM A320 Grade B8m Cup Washer

AISI 316 Stainless Steel A320 B8m Square Washer

A320 B8m Class 2 Lock Washer

ASTM A320 B8m Class 2 Countersunk Washer

ASTM A320 B8m Belleville Washer

SA320 B8m SS 316 Shim Washer

A320 B8m Class 2 Square Plate Washer

ASTM A320 B8m Class 2 Square Washer

AISI 316 Stainless Steel A320 B8m Penny Washer

ASTM A320 B8m Machine Washers

Polished SA320 B8m SS 316 Washer

Stainless Steel A320 Gr B8m Ring Washers

SA 320 B8m Class 2 Nuts Sizes

AISI 316 Stainless Steel A320 B8m UNC Heavy Hex Nuts sizes as per ANSI/ASME B18.2.2

UNC SS ASTM A320 Grade B8m Heavy hex nut dimensions
Nut N/B	Maximum Across Corners	Min Across Corners	Maximum Thickness	Min Thickness	Maximum Across Flats	Maximum Across Flats
3/8	20.2	19.4	9.6	8.7	17.5	17
7/16	22	21.1	11.2	10.2	19	18.5
1/2	25.6	24.6	12.8	11.8	22.2	21.6
9/16	27.5	26.3	14.4	13.4	23.8	23.1
5/8	31.2	29.8	16	14.9	27	26.2
3/4	36.7	35.1	19.3	18	31.8	30.8
7/8	42.2	40.4	22.5	21.2	36.5	35.4
1	47.7	45.6	25.7	24.3	41.3	40
1 1/8	53.2	50.8	28.9	27.4	46	44.6
1 1/4	58.6	56.1	31.8	30.1	50.8	49.2
1 3/8	64.2	61.4	35	33.3	55.6	53.8
1 1/2	69.6	66.6	38.2	36.4	60.3	58.4
1 5/8	75.2	71.8	41.5	39.5	65.1	63
1 3/4	80.6	77.1	44.7	42.6	69.9	67.6
1 7/8	86.2	82.3	47.9	45.8	74.6	72.2
2	91.6	87.6	51.1	48.9	79.4	76.8
2 1/4	102.6	98.1	57.2	54.7	88.9	86.1
2 1/2	113.6	108.6	63.6	61	98.4	95.2
2 3/4	124.6	119.1	70.1	67.2	108	104.4
3	135.6	129.6	76.5	73.5	117.5	113.7

ASTM A320 B8m Class 2 Screws Sizes

BS 2470 AISI 316 Stainless Steel A320 B8m Hexagon Socket Head Screw (1936 SERIES) G

SS ASTM A320 Grade B8m Screw Size and Thread Dia D	Thread Pitch		Length of Thread B	Head diameter dk		Diameter of unthreaded shank dw		Head Thickness k		Width across flats s	Radius under head r		Hex socket depth t	Wall thickness w
	UNC	UNF	min	max.	min.	max.	min.	max.	min.	nom.	max.	min.	min.	min.
0	-	8000%	0.5	0.096	0.093	0.6	0.0568	0.06	0.057	0.05	0.007	0.003	0.025	0.019
1	64	7200%	0.625	0.118	0.114	0.073	0.0695	0.073	0.07	0.05	0.007	0.003	0.031	0.023
2	56	6400%	0.625	0.14	0.136	0.086	0.0822	0.086	0.083	1/161/16	0.008	0.004	0.038	0.028
3	48	5600%	0.625	0.161	0.157	0.099	0.0949	0.099	0.095	5/645/64	0.008	0.004	0.044	0.032
4	40	4800%	0.75	0.183	0.178	0.112	0.1075	0.112	0.108	5/645/64	0.009	0.005	0.051	0.036
5	40	4400%	0.75	0.205	0.2	0.125	0.1202	0.125	0.121	3/323/32	0.01	0.006	0.057	0.04
6	32	4000%	0.75	0.226	0.221	0.138	0.1329	0.138	0.134	3/323/32	0.01	0.006	0.064	0.044
8	32	3600%	0.875	0.27	0.265	0.164	0.1585	0.164	0.159	1/81/8	0.012	0.007	0.077	0.052
10	24	3200%	0.875	5/165/16	0.306	0.19	0.184	0.19	0.185	5/325/32	0.014	0.009	0.09	0.061
12	24	2800%	0.875	0.343	0.332	0.216	0.21	0.216	0.201	5/325/32	0.014	0.009	0.11	0.074
1/41/4	20	2800%	1	3/83/8	0.367	0.25	0.2435	1/41/4	0.233	3/163/16	0.014	0.009	0.12	0.08
5/165/16	18	2400%	1.125	7/167/16	0.429	0.3125	0.3053	5/165/16	0.306	7/327/32	0.017	0.012	0.151	0.1
3/83/8	16	2400%	1.25	9/169/16	0.553	0.375	0.3678	3/83/8	0.368	5/165/16	0.02	0.015	0.182	0.12
7/167/16	14	2000%	1.375	5/85/8	0.615	0.4375	0.4294	7/167/16	0.43	5/165/16	0.023	0.018	0.213	0.14
43467	13	2000%	1.5	43528	0.739	0.5	0.4919	43467	0.492	43532	0.026	0.02	0.245	0.16
43724	12	1800%	1.625	0.812	0.795	0.5625	0.554	0.562	0.553	43532	0.03	0.022	0.276	0.18
43593	11	1800%	1.75	43654	0.863	0.625	0.6163	43593	0.616	43467	0.032	0.024	0.307	0.2
43528	10	1600%	2	1	0.987	0.75	0.7406	43528	0.74	43724	0.039	0.03	0.37	0.24
43654	9	1400%	2.25	1.1/8	1.111	0.875	0.8647	43654	0.864	43724	0.044	0.034	0.432	0.28
1	8	14/12	2.5	1.5/16	1.297	1	0.98861	1	0.988	43593	0.05	0.04	0.495	0.32
1.1/8	7	1200%		1.5		1.125	1.1086	1.125	1.111	43528			0.557	0.428
1.1/4	7	1200%		1.75		1.25	1.2336	1.25	1.236	43528			0.62	0.475
1.3/8	6	1200%		1.875		1.375	1.3568	1.375	1.36	43528			0.682	0.523
1.1/2	6	1200.00%		2		1.5	1.4818	1.5	1.485	1			0.745	0.57
1.3/4	5	-		2.5		1.75	1.7295	1.75	1.734	1.1/4			0.87	0.665
2	4.1/2	-		2.75		2	1.978	2	1.983	1.3/8			0.995	0.76

AISI 316 Stainless Steel A320 B8m Washer Sizes

SS ASTM A320 Grade B8m USS Flat Washers
Size	ID	OD	Thickness
3/16	1/4"	9/16"	3/64"
1/4	5/16"	3/4"	1/16"
5/16	3/8"	7/8"	5/64"
3/8	7/16"	1"	5/64"
7/16	1/2"	1-1/4"	5/64"
1/2	9/16"	1-3/8"	7/64"
9/16	5/8"	1-1/2"	7/64"
5/8	11/16"	1-3/4"	9/64"
3/4	13/16"	2"	5/32"
7/8	15/16"	2-1/4"	1/64"
1	1-1/16"	2-1/2"	11/64"
1-1/8	1-1/4"	2-3/4"	11/64"
1-1/4	1-3/8"	3"	11/64"
1-3/8	1-1/2"	3-1/4"	3/16"
1-1/2	1-5/8"	3-1/2"	3/16"
1-5/8	1-3/4"	3-3/4"	3/16"
1-3/4	1-7/8"	4"	3/16"
2	2-1/8"	4-1/2"	3/16"
2-1/2	2-5/8"	4-1/2"	3/16"
3	3-1/8"	5-1/2"	9/32"

ASTM A320 B8m Bolts Sizes

ASME B18.2.1 SA320 B8m SS 316 Hex Bolt size (Inch Series)

Size in Inch	SS ASTM A320 Grade B8m Hex Bolt Diameter [in]	A320 B8m Class 2 Bolt Width Across Flats		ASTM A320 B8m Class 2 Bolt Head Height
Size in Inch	SS ASTM A320 Grade B8m Hex Bolt Diameter [in]	Nominal [in]	Min. [in]	Nominal [in]	Min. [in]
1/4"	0.2500	7/16"(0.438)	0.425	11/64"	0.150
5/16"	0.3125	1/2"(0.500)	0.484	7/32"	0.195
3/8"	0.3750	9/16"(0.562)	0.544	1/4"	0.226
7/16"	0.4375	5/8"(0.625)	0.603	19/64"	0.272
1/2"	0.5000	3/4"(0.750)	0.725	11/32"	0.302
5/8"	0.6250	15/16"(0.938)	0.906	27/64"	0.378
3/4"	0.7500	1-1/8"(1.125)	1.088	1/2"	0.455
7/8"	0.8750	1-5/16"(1.312)	1.269	37/64"	0.531
1"	1.0000	1-1/2"(1.500)	1.450	43/64"	0.591
1-1/8"	1.1250	1-11/16"(1.688)	1.631	3/4"	0.658
1-1/4"	1.2500	1-7/8"(1.875)	1.812	27/32"	0.749
1-3/8"	1.3750	2-1/16"(2.062)	1.994	29/32"	0.810
1-1/2"	1.5000	2-1/4"(2.250)	2.175	1"	0.902
1-5/8"	1.6250	2-7/16"(2.438)	2.356	1-3/32"	0.978
1-3/4"	1.7500	2-5/8"(2.625)	2.538	1-5/32"	1.054
1-7/8"	1.8750	2-13/16"(2.812)	2.719	1-1/4"	1.130
2"	2.0000	3"(3.000)	2.900	1-11/32"	1.175

Chemical Composition of SS ASTM A320 Grade B8m Hex Bolts

Element Alloy	A320 B8M (AISI 316)	A320 B8 (AISI 304)
Carbon (c)	0.08% max	0.08% max
Manganese	2.00% max	2.00% max
Phosphorus, max	0.045%	0.045%
Sulfur, max	0.030%	0.030%
Silicon	1.00% max	1.00% max
Chromium	16.0 - 18.0%	18.0 - 20.0%
Nickel	10.0 - 14.0%	8.0 - 11.0%
Molybdenum	2.00 - 3.00%

Mechanical Properties of A320 B8m Class 2 Nut Bolt

Grade	Size	Tensile Strength, ksi min	Yield Strength, ksi, min	Charpy Impact	Elong, % min	RA, %, min
A320 B8M Class 1	all	75	30	N/A	30	50
A320 B8M Class 2	Up to 3/4	110	95	N/A	15	45
	7/8 – 1	100	80	N/A	20	45
	11/8 – 11/4	95	65	N/A	25	45
	13/8 – 11/2	90	50	N/A

ASTM A320 B8m Class 2 Fasteners Equivalent Grade

ASTM A320 different grades	Description
A320 B8M Class 1	AISI 316, SS carbide solution treated
A320 B8M Class 2	AISI 316, SS carbide solution treated, strain hardened

A320 Grade B8m Bolts Price List

Products	FOB Price US $
ASTM A320 B8m Class 2 Bolts and Nuts	US $0.001-$0.01/ Piece
ASTM A320 Grade B8m Stainless Steel Threaded Rod Stud	US $0.05-$0.06/ Piece
Stainless Steel ASTM A320 Grade B8m Hex Bolt	US $0.90-$1.10/ Piece
A320 Grade B8m Stud Bolt	US $0.01-$1.00/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details. Always compare our price with other ASTM A320 Grade B8m Bolts manufacturers in India or China

45, Islampura Street, Near Alankar Cinema, Mumbai-400 004 (India)
+(91) 022-66595844, 66595845
Mon - Saturday: 9.00am to 7.00pm
sales@jigneshsteel.com
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