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Carbon Steel DIN6921 Metric A2 80 Stainless Steel Flange Bolt

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Jiaxing City Qunbang Hardware Co., Ltd

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Carbon Steel DIN6921 Metric A2 80 Stainless Steel Flange Bolt

Brand Name : QBH

Model Number : DIN6921

Certification : ISO9001

Place of Origin : CHINA

MOQ : 900kg

Price : Negotiation

Payment Terms : L/C, T/T

Supply Ability : 500TON/MONTH

Delivery Time : 30DAYS

Packaging Details : 25KG/CTN,36CTN/PALLET or small packing

Standard : DIN6921

Material : stainless steel

Size : M5-M20

Finish : plain

Grade : A2-70 A2-80 A4-70 A4-80

Packing : Carton and pallet or according to the customer's requirement

Sample : Free Sample

Thread : machine thread

Lead time : Per on order quantity

Type : Hexagon Head

Advantage : we can manufacture according to client design,OEM / ODM / customized service provided

Oem : yes,welcome

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Specification

DIN 6921 - Hexagon flange bolts metric

Current norm: DIN EN 1665

Carbon Steel DIN6921 Metric A2 80 Stainless Steel Flange Bolt

Legend:

d2 - the inner diameter of the ring
b - length of the thread (at least)
l - length of bolt
d - the nominal diameter of the thread
k - head height
s - size hex head turnkey

Makings:QBH
Stainless: A2-70,A2-80,A4-70,A4-80
Plastic: -
Non Ferrous: -
Thread: 6g

Table according to DIN 6921:

Tdread		M5	M6	M8	M10	M12	(M14)	M16	M20
size d		-	-	M8 x 1	M10 x 1,25	M12 x 1,5	(M14x1,5)	M16 x 1,5	M20 x 1,5
size d		-	-	-	(M10 x 1)	(M10 x 1,25)	-	-	-
P		0,8	1	1,25	1,5	1,75	2	2	2,5
C	Min.	1	1,1	1,2	1,5	1,8	2,1	2,4	3
da	Min.	5	6	8	10	12	14	16	20
da	Max.	5,75	6,75	8,75	10,8	13	15,1	17,3	21,6
dc	Max.	11,8	14,2	17,9	21,8	26	29,9	34,5	42,8
dw	Min.	9,8	12,2	15,8	19,6	23,8	27,6	31,9	39,9
e	Min.	8,79	11,05	14,38	16,64	20,03	23,36	26,75	32,95
h	Max.	6,2	7,3	9,4	11,4	13,8	15,9	18,3	22,4
m	Min.	4,7	5,7	7,6	9,6	11,6	13,3	15,3	18,9
m´	Min.	2,2	3,1	4,5	5,5	6,7	7,8	9	11,1
s	Nominal size =max.	8	10	13	15	18	21	24	30
s	Min.	7,78	9,78	12,73	14,73	17,73	20,67	23,67	29,16
r	Max.	0,3	0,36	0,48	0,6	0,72	0,88	0,96	1,2

Tab 2

Thread d			M5		M6		M8		M10		M12		M14		M16		M 20
			-		-		M8 x 1		M10 x 1,25		M12 x 1,5		M14 x 1,5		M16 x 1,5		M20 x 1,5
			-		-		-		(M10 x 1)		(M12 x 1,25)		-		-		-
l			Shank lengtds
l			Shank lengtds
nominal dimension	min.	max.	ls min.	lg max	ls min.	lg max	ls min.	lg max	ls min.	lg max	ls min.	lg max	ls min.	lg max	ls min.	lg max	ls min.	lg max
10	9,71	10,29	-	2,4
12	11,65	12,35	-	2,4	-	3
16	15,65	16,35	-	2,4	-	3	-	4
20	19,58	20,42	-	4	-	3	-	4	-	4,5
25	24,58	25,42	5	9	2	7	-	4	-	4,5	-	5,3
30	29,58	30,42	10	14	7	12	-	8	-	4,5	-	5,3	-	6
35	34,5	35,5	15	19	12	17	6,75	13	-	9	-	5,3	-	6	-	6
40	39,5	40,5	20	24	17	22	11,75	18	6,5	14	-	10	-	6	-	6	-	7,5
45	44,5	45,5	25	29	22	27	16,75	23	11,5	19	6,25	15	-	11	-	6	-	7,5
50	49,5	50,5	30	34	27	32	21,75	28	16,5	24	11,25	20	6	16	-	12	-	7,5
55	54,4	55,6			32	37	26,75	33	21,5	29	16,25	25	11	21	7	17	-	9
60	59,4	60,6			37	42	31,75	38	26,5	34	21,25	30	16	26	12	22	-	14
65	64,4	65,5					36,75	43	31,5	39	26,25	35	21	31	17	27	6,5	19
70	69,4	70,6					41,75	48	36,5	44	31,25	40	26	36	22	32	11,5	24
80	79,4	80,6					51,75	58	46,5	54	41,25	50	36	46	32	42	21,5	34
90	89,3	90,7							56,5	64	51,25	60	46	56	42	52	31,5	44
100	99,3	100,7							66,5	74	61,25	70	56	66	52	62	41,5	54
110	109,3	110,7									71,25	80	66	76	62	72	51,5	54
120	119,3	120,7									81,25	90	76	86	72	82	61,5	74
130	129,2	130,8											80	90	76	86	65,5	78
140	139,2	140,8											90	100	86	96	75,5	88
150	149,2	150,8													96	106	85,5	98
160	159,2	160,8													106	116	95,5	108
180	179,2	180,8															115,5	128
200	199	201															135,5	148

Process flow

Cold forging

Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing

Hot forging

Cutting material ➨ hot forging ➨ turning ➨ shrink diameter(half thread) ➨thread rolling ➨ make heat treatment(if need) ➨ Finish ➨ Packing

Product Grade

304 Grade A2-70 A2-80 316 Grade A4-70 A4-80

Materials and Chemical compstition

CHEMICAL COMPOSI(% )
Type	C	Si	Mn	P	S	Ni	Cr	Mo	Cu	Others
Type	≤	≤	≤	≤	≤	≥	≥	≥	≈
201Cu	0.08	1.00	7.5-10	0.06	0.03	4.00-6.00	14.0-17.0		2.0-3.0
201	0.15	1.00	8.50	0.06	0.03	3.50-5.50	16.0-18.0			N≤0.25
130M/202	0.15	1.00	7.5-10	0.06	0.03	4.00-6.00	17.0-19.0			N≤0.25
202	0.15	1.00	7.5-10	0.06	0.03	4.00-6.00	17.0-19.0
301	0.15	1.00	2.00	0.045	0.03	5.00-8.00	16.0-18.0
302	0.15	1.00	2.00	0.045	0.03	8.00-10.0	17.0-19.0
XM7 (302HQ)	0.08	1.00	2.00	0.045	0.03	8.50-10.5	17.0-9.00		3.0-4.0
303	0.15	1.00	2.00	0.20	≥0.15	8.00-10.0	17.0-19.0	≤0.60
303Cu	0.15	1.00	3.00	0.20	≥0.15	8.0-10.0	17.0-19.0	≤0.60	1.5-3.5
304	0.08	1.00	2.00	0.045	0.03	8.00-10.0	18.0-20.0
304H	0.08	1.00	2.00	0.045	0.03	8.0-10.0	18.0-20.0
304HC	0.08	1.00	2.00	0.045	0.03	8.00-10.0	17.0-19.0		2.0-3.0
304HCM	0.08	1.00	2.00	0.045	0.03	8.0-10.0	17.0-19.0		2.5-4.0
304L	0.03	1.00	2.00	0.045	0.03	9.0-13.0	18.0-20.0
304M	0.06	1.00	2.00	0.045	0.03	8.50-10.0	18.0-20.0
305	0.12	1.00	2.00	0.045	0.03	10.5-13.0	17.0-19.0
305J1	0.08	1.00	2.00	0.045	0.03	11.0-13.5	16.5-19.0
309S	0.08	1.00	2.00	0.045	0.03	12.0-15.0	22.0-14.0
310S	0.08	1.50	2.00	0.045	0.03	19.0-22.0	24.0-26.0
314	0.25	15.-3.0	2.00	0.040	0.03	19.0--22.0	24.0-26.0
316	0.08	1.00	2.00	0.045	0.03	10.0-14.0	16.0-18.0	2.0-3.0
316Cu	0.03	1.00	2.00	0.045	0.03	10.0-14.0	16.0-18.0	2.0-3.0	2.0-3.0
316L (12Ni)	0.03	1.00	2.00	0.045	0.03	12.0-15.0	16.0-18.0	2.0-3.0
316L (10Ni)	0.03	1.00	2.00	0.045	0.03	10.0-14.0	16.0-18.0	2.0-3.0
321	0.08	1.00	2.00	0.045	0.03	9.00-13.0	17.0-19.0			Ti≤5*C%
410	0.15		1.00		0.03		11.5-13.5
416	0.15		1.25		≥0.15		12.0-14.0
420	0.26-0.4		1.00		0.03		12.0-14.0
410L	0.30	1.00	1.00	0.040	0.03		11.5-13.5
430	0.12	0.75	1.00	0.040	0.03		16.0-18.0
430F	0.12	1.00	1.25	0.060	0.15		16.0-18.0
631(J1)	0.09	1.00	1.00	0.040	0.03	6.50-8.50	16.0-18.0			AL 0.75-1.5
2520	0.08	1.00	2.00	0.035	0.03	19.0-22.0	24.0-26.0

PACKING

QBH BULK

20-25KG/CTN,36CTNS/PALLET

20-30KG/BAGS,36BAGS/PALLET

ONE TON/BOXES

50KG/ IRON DRUM,12 IRON DRUMS/PALLET

QBH SMALL PACKING

Packing in small boxes according to customer’s requirements

Packing in plastic bag according to customer’s requirements

QBH PALLET TYPE

SOLID WOOD FUMIGATION PALLET

EURO Pallet

THREE SPLINT PALLET

WOODEN BOX

The advantages of QBH

QBH brand sales to the main quality assurance.
Years of export trade management, excellent service, word-of-mouth guarantee.
By working with TUV,escort for quality.
Customization of non-standard parts can be made according to customer's requirements and drawings.
For quality customers,we can provide a certain credit period.

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