A2-70/A4-80 Stainless Steel Hex Head Bolt, M22X250, 260, 270, 280, 290, 300, 320, 350, 360, 380, 400, 450, 500, 550, 600, 650, 700, 800, 900, 1000mm

• Material: Stainless Steel
• Type: Hexagon Head
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI, JIS, BSW, GOST
• Application: Machinery, Chemical Industry, Environmental, Building
• Model NO.: M22x250,260,270,280,290,300,320,350,360,380,400,45
• Finish: Passivation
• Size in Stock: We Have All Standard Sizes in Stock
• Transport Package: Carton/Pallet.
• Specification: M12X20,25,30,35,40,45,50,60,70,80,90,100,110,120,1
• Trademark: WB
• Origin: China
• HS Code: 7318150000
• Production Capacity: 3000 Tons Per Year

Product Description

Product Name	A2-70/A4-80 Stainless steel hex head bolt, M22x250,260,270,280,290,300,320,350,360,380,400,450,500,550,600,650,700,800,900,1000mm
Material:	Stainless steel.18/8, SUS 304, SUS 316, A2, A4, 201,410, etc
Finished	Polish ,passivation
Standard	ANSI B18.2.1 / DIN931/DIN933/ISO4016/ISO4017, Etc

DIN933

Screw Thread					M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	(M7)	M8	M10	M12	(M14)	M16
d
P		Pitch			0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1	1.25	1.5	1.75	2	2
a		max			1.05	1.2	1.35	1.5	1.8	2.1	2.4	3	3	3.75	4.5	5.25	6	6
c		min			0.1	0.1	0.1	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.2
		max			0.25	0.25	0.25	0.4	0.4	0.4	0.5	0.5	0.5	0.6	0.6	0.6	0.6	0.8
da		max			2	2.6	3.1	3.6	4.1	4.7	5.7	6.8	7.8	9.2	11.2	13.7	15.7	17.7
dw		Grade A	min		2.4	3.2	4.1	4.6	5.1	5.9	6.9	8.9	9.6	11.6	15.6	17.4	20.5	22.5
		Grade B	min		-	-	-	-	-	5.7	6.7	8.7	9.4	11.4	15.4	17.2	20.1	22
e		Grade A	min		3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05	12.12	14.38	18.9	21.1	24.49	26.75
		Grade B	min		-	-	-	-	-	7.5	8.63	10.89	11.94	14.2	18.72	20.88	23.91	26.17
k		Nominal Size			1.1	1.4	1.7	2	2.4	2.8	3.5	4	4.8	5.3	6.4	7.5	8.8	10
		Grade A	min		0.98	1.28	1.58	1.88	2.28	2.68	3.35	3.85	4.65	5.15	6.22	7.32	8.62	9.82
			max		1.22	1.52	1.82	2.12	2.52	2.92	3.65	4.15	4.95	5.45	6.56	7.68	8.98	10.18
		Grade B	min		-	-	-	-	-	2.6	3.26	3.76	4.56	5.06	6.11	7.21	8.51	9.71
			max		-	-	-	-	-	3	3.74	4.24	5.04	5.54	6.69	7.79	9.09	10.29
k1		min			0.7	0.9	1.1	1.3	1.6	1.9	2.28	2.63	3.19	3.54	4.28	5.05	5.96	6.8
r		min			0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.25	0.4	0.4	0.6	0.6	0.6
s		max=nominal size			3.2	4	5	5.5	6	7	8	10	11	13	17	19	22	24
		Grade A	min		3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	10.73	12.73	16.73	18.67	21.67	23.67
		Grade B	min		-	-	-	-	-	6.64	7.64	9.64	10.57	12.57	16.57	18.48	21.16	23.16
k1		min			0.7	0.9	1.1	1.3	1.6	1.9	2.28	2.63	3.19	3.54	4.28
r		min			0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.25	0.4	0.4
s		max=nominal size			3.2	4	5	5.5	6	7	8	10	11	13	17
		Grade A	min		3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	10.73	12.73	16.73
		Grade B	min		-	-	-	-	-	-	-	-	-	-	-
Screw Thread					(M14)	M16	(M18)	M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)
d
P		Thread Pitch			2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4
b		L≤125			34	38	42	46	50	54	60	66	72	78	84
		125			40	44	48	52	56	60	66	72	78	84	90
		L>200			53	57	61	65	69	73	79	85	91	97	103
c		min			0.15	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3
		max			0.6	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	1
da		max			15.7	17.7	20.2	22.4	24.4	26.4	30.4	33.4	36.4	39.4	42.4
ds		max=nominal size			14	16	18	20	22	24	27	30	33	36	39
		Grade A	min		13.73	15.73	17.73	19.67	21.67	23.67	-	-	-	-	-
		Grade B	min		-	15.57	17.57	19.48	21.48	23.48	26.48	29.48	32.38	35.38	38.38
dw		Grade A	min		20.5	22.6	25.3	28.2	30	33.6	-	-	-	-	-
		Grade B	min		-	22	24.8	27.7	29.5	33.2	38	42.7	46.6	51.1	55.9
e		Grade A	min		24.49	26.75	30.14	33.53	35.72	39.98	-	-	-	-	-
		Grade B	min		-	26.17	29.56	32.95	35.03	39.55	45.2	50.85	55.37	60.79	66.44
k		Nominal Size			8.8	10	11.5	12.5	14	15	17	18.7	21	22.5	25
		Grade A	min		8.62	9.82	11.28	12.28	13.78	14.78	-	-	-	-	-
			max		8.98	10.18	11.72	12.72	14.22	15.22	-	-	-	-	-
		Grade B	min		-	9.71	11.15	12.15	13.65	14.65	16.65	18.28	20.58	22.08	24.58
			max		-	10.29	11.85	12.85	14.35	15.35	17.35	19.12	21.42	22.92	25.42
k1		min			5.96	6.8	7.8	8.5	9.6	10.3	11.7	12.8	14.4	15.5	17.2
r		min			0.6	0.6	0.6	0.8	0.8	0.8	1	1	1	1	1
s		max=nominal size			22	24	27	30	32	36	41	46	50	55	60
		Grade A	min		21.67	23.67	26.67	29.67	31.61	35.38	-	-	-	-	-
		Grade B	min		-	23.16	26.16	29.16	31	35	40	45	49	53.8	58.8

DIN931

Screw Thread					M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6	(M7)	M8	M10	M12
d
P		Thread Pitch			0.35	0.4	0.45	0.5	0.6	0.7	0.8	1	1	1.25	1.5	1.75
b		L≤125			9	10	11	12	13	14	16	18	20	22	26	30
		125			-	-	-	-	-	-	22	24	26	28	32	36
		L>200			-	-	-	-	-	-	-	-	-	-	45	49
c		min			0.1	0.1	0.1	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15	0.15
		max			0.25	0.25	0.25	0.4	0.4	0.4	0.5	0.5	0.5	0.6	0.6	0.6
da		max			2	2.6	3.1	3.6	4.1	4.7	5.7	6.8	7.8	9.2	11.2	13.7
ds		max=nominal size			1.6	2	2.5	3	3.5	4	5	6	7	8	10	12
		Grade A	min		1.46	1.86	2.36	2.86	3.32	3.82	4.82	5.82	6.78	7.78	9.78	11.73
		Grade B	min		-	-	-	-	-	-	-	-	-	-	-	-
dw		Grade A	min		2.4	3.2	4.1	4.6	5.1	5.9	6.9	8.9	9.8	11.6	15.6	17.4
		Grade B	min		-	-	-	-	-	-	-	-	-	-	-	-
e		Grade A	min		3.41	4.32	5.45	6.01	6.58	7.66	8.79	11.05	12.12	14.38	18.9	21.1
		Grade B	min		-	-	-	-	-	-	-	-	-	-	-	-
k		Nominal Size			1.1	1.4	1.7	2	2.4	2.8	3.5	4	4.8	5.3	6.4	7.6
		Grade A	min		0.98	1.28	1.58	1.88	2.28	2.68	3.35	3.85	4.65	5.15	6.22	7.32
			max		1.22	1.52	1.82	2.12	2.52	2.92	3.65	4.15	4.95	5.45	6.58	7.68
		Grade B	min		-	-	-	-	-	-	-	-	-	-	-	-
			max		-	-	-	-	-	-	-	-	-	-	-	-
k1		min			0.7	0.9	1.1	1.3	1.6	1.9	2.28	2.63	3.19	3.54	4.28	5.05
r		min			0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.25	0.4	0.4	0.6
s		max=nominal size			3.2	4	5	5.5	6	7	8	10	11	13	17	19
		Grade A	min		3.02	3.82	4.82	5.32	5.82	6.78	7.78	9.78	10.73	12.73	16.73	18.67
		Grade B	min		-	-	-	-	-	-	-	-	-	-	-	-
Length of Thread b					-	-	-	-	-	-	-	-	-	-	-	-
Screw Thread					(M14)	M16	(M18)	M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)
d
P		Thread Pitch			2	2	2.5	2.5	2.5	3	3	3.5	3.5	4	4
b		L≤125			34	38	42	46	50	54	60	66	72	78	84
		125			40	44	48	52	56	60	66	72	78	84	90
		L>200			53	57	61	65	69	73	79	85	91	97	103
c		min			0.15	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.3
		max			0.6	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8	1
da		max			15.7	17.7	20.2	22.4	24.4	26.4	30.4	33.4	36.4	39.4	42.4
ds		max=nominal size			14	16	18	20	22	24	27	30	33	36	39
		Grade A	min		13.73	15.73	17.73	19.67	21.67	23.67	-	-	-	-	-
		Grade B	min		-	15.57	17.57	19.48	21.48	23.48	26.48	29.48	32.38	35.38	38.38
dw		Grade A	min		20.5	22.6	25.3	28.2	30	33.6	-	-	-	-	-
		Grade B	min		-	22	24.8	27.7	29.5	33.2	38	42.7	46.6	51.1	55.9
e		Grade A	min		24.49	26.75	30.14	33.53	35.72	39.98	-	-	-	-	-
		Grade B	min		-	26.17	29.56	32.95	35.03	39.55	45.2	50.85	55.37	60.79	66.44
k		Nominal Size			8.8	10	11.5	12.5	14	15	17	18.7	21	22.5	25
		Grade A	min		8.62	9.82	11.28	12.28	13.78	14.78	-	-	-	-	-
			max		8.98	10.18	11.72	12.72	14.22	15.22	-	-	-	-	-
		Grade B	min		-	9.71	11.15	12.15	13.65	14.65	16.65	18.28	20.58	22.08	24.58
			max		-	10.29	11.85	12.85	14.35	15.35	17.35	19.12	21.42	22.92	25.42
k1		min			5.96	6.8	7.8	8.5	9.6	10.3	11.7	12.8	14.4	15.5	17.2
r		min			0.6	0.6	0.6	0.8	0.8	0.8	1	1	1	1	1
s		max=nominal size			22	24	27	30	32	36	41	46	50	55	60
		Grade A	min		21.67	23.67	26.67	29.67	31.61	35.38	-	-	-	-	-
		Grade B	min		-	23.16	26.16	29.16	31	35	40	45	49	53.8	58
Screw Thread		(M68)	M72	(M76)	M80	M90	M100	M110	M125	M140	M160
d
P	Pitch	6	6	6	6	6	6	6	6	6	6
b	125	148	156	164	172	192	-	-	-	-	-
	L>200	161	169	177	185	205	225	245	275	305	345
c	min	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
	max	1	1	1	2	2	2	2	2	2	2
da	max	75	79	83	87	97	107	117	132	147	167
ds	max=nominal size	68	72	76	88	90	100	110	125	140	160
	min	67.26	71.26	75.26	79.26	89.13	99.13	109.13	124	139	159
dw	min	92.9	97.7	102.1	106.9	121.1	135.4	144.9	168.6	185.6	214.1
e	min	110.51	116.16	121.81	127.46	144.08	161.02	172.32	200.57	220.8	254.7
k	Nominal Size	43	45	48	50	57	63	69	79	88	100
	min	42.5	44.5	47.5	49.5	56.4	62.4	68.4	78.4	87.3	99.3
	max	43.5	45.5	48.5	50.5	57.6	63.6	69.6	79.6	88.7	100.7
k1	min	29.8	31.2	33.2	34.6	40.3	43.7	47.9	54.9	61.1	69.5
r	min	2	2	2	2	2.5	2.5	2.5	2.5	2.5	2.5
s	max=nominal size	100	105	110	115	130	145	155	180	200	230
	min	97.8	102.8	107.8	112.8	127.5	142.5	152.5	177.5	195.4	225

 

ABOUT US:
Wellbolt is an excellent fasteners & metal production manufacturer and exporter in China,from the beginning of the production of bolts and screws, established its full range fastener distribution line 3 years later.
We supply all kind of  bolts, rods, wood screws, special nuts and stamping parts and export various fasteners and metal products, material can be carbon steel, alloy steel, stainless steel SUS 304, SUS 316, SUS 316L, Aluminum, Brass and plastic, etc. 
Our team has more than 10 years of experience in fastener production and export, and we can provide customers with the right high-quality products.With high-quality products and first-class service, our products has been exported to hundreds of customers in more than 60 countries since 2010.
We believe that high quality and honest service will help customers win the market and achieve a win-win situation.



FAQ

Q1: Why choose Wellbolt? To provide our customers with first-class services in the supply of quality fasteners minimizing costs.

1.1. Vision: We wishes to build successful relations with our partners and be their first choice as an fastenerssupplier. 

1.2. Mission: professional customer service, and innovation in technology. Further more, we do not only offer you more reasonable quality and price than your expectations, but also would like to be your friend and to provide
you market sales suggestion for your reference, if you have a better idea , please feel free to share with us. 

Q2.How is quality?ensured?
 All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to
delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality
,good at modern concept of management. 

Q3:If you can not find on our website the product you need how to do?
 You can send thepictures/photos and drawings of the products you need by email , we will check if we have them. We develop new
models every month,Or you can send us samples by DHL/TNT, then we can develop the new model especially for you. 

Q4:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?
 Yes, we can, we can provide high precision parts and make the parts as your drawing.

Q5: How should I order and make payment?
 By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance
to be paid before shipment. 

Q6: What's your Delivery Time?
 Standard parts: 7-45days
Non-standard parts: 25-45days
We will make the delivery as soon as possible with the guarantee quality.

Q7:How to Custom-made (OEM/ODM)?
 

ABOUT US:
Wellbolt is an excellent fasteners & metal production manufacturer and exporter in China,from the beginning of the production of bolts and screws, established its full range fastener distribution line 3 years later.
We supply all kind of  bolts, rods, wood screws, special nuts and stamping parts and export various fasteners and metal products, material can be carbon steel, alloy steel, stainless steel SUS 304, SUS 316, SUS 316L, Aluminum, Brass and plastic, etc. 
Our team has more than 10 years of experience in fastener production and export, and we can provide customers with the right high-quality products.With high-quality products and first-class service, our products has been exported to hundreds of customers in more than 60 countries since 2010.
We believe that high quality and honest service will help customers win the market and achieve a win-win situation.



FAQ

Q1: Why choose Wellbolt? To provide our customers with first-class services in the supply of quality fasteners minimizing costs.

1.1. Vision: We wishes to build successful relations with our partners and be their first choice as an fastenerssupplier. 

1.2. Mission: professional customer service, and innovation in technology. Further more, we do not only offer you more reasonable quality and price than your expectations, but also would like to be your friend and to provide
you market sales suggestion for your reference, if you have a better idea , please feel free to share with us. 

Q2.How is quality?ensured?
 All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to
delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality
,good at modern concept of management. 

Q3:If you can not find on our website the product you need how to do?
 You can send thepictures/photos and drawings of the products you need by email , we will check if we have them. We develop new
models every month,Or you can send us samples by DHL/TNT, then we can develop the new model especially for you. 

Q4:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?
 Yes, we can, we can provide high precision parts and make the parts as your drawing.

Q5: How should I order and make payment?
 By T/T, for samples 100% with the order; for production, 30% paid for deposit by T/T before production arrangement, the balance
to be paid before shipment. 

Q6: What's your Delivery Time?
 Standard parts: 7-45days
Non-standard parts: 25-45days
We will make the delivery as soon as possible with the guarantee quality.

Q7:How to Custom-made (OEM/ODM)?
 If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. 

 If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required.