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Stainless Steel Hexagon Hex Socket Allen Head Bolt

Brand Name:QBH

Certification:ISO9001

Model Number:DIN912

Minimum Order Quantity:900kg

Delivery Time:30DAYS

Payment Terms:L/C, T/T

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Jiaxing City Qunbang Hardware Co., Ltd

Verified Supplier

Location: Jiaxing Zhejiang China

Address: No.375,Tongle Road,Jiaxing City,Zhejiang Province,China

Supplier`s last login times: within 29 hours

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Product Details Company Profile

Product Details

DIN912 High Tensile Stainless Steel Bolts

Specification

Socket head cap screws are commonly used in machine assembly for removable panels and parts. They have a round cap with a hex head and are tightened with a socket wrench drive. Longer caps are easier to see when fastened, while button and flat head caps are less likely to snag clothing or linkages. Cap screws with a black oxide or armor coat finish resist corrosion.

Coarse threads are the industry standard; choose these screws if you don’t know the pitch or threads

per inch. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer

the thread, the better the resistance. They are not compatible with coarse threads.

Screws that meet ASTM A574, ASTM A574M, and ISO 898-1 comply with specifications and testing

requirements for material quality. Screws that meet ASME B18.3, ASME B18.3M, ISO 21269, and

ISO 4762 (formerly DIN 912) comply with specifications for dimensional standards.

DIN 912 - Hexagon socket Head Cap Screws

Current norm: DIN EN ISO 4762
Equivalent norms: ISO 4762; CSN 021143; PN 82302; UNI 5931

Screw Thread
d

P	Pitch	Coarse thread
		Fine thread pitch-1
		Fine thread pitch-2
b	Ref.
d_k	plain head	max
	knurled heads	max
	min
d_a	max
d_s	max
	min
e	min
k	max
	min
s	Nominal Size
	min
	max
t	min
w	min

0.3	0.35	0.4	0.45	0.5	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5	2.5
-	-	-	-	-	-	-	-	1	1.25	1.25	1.5	1.5	1.5	1.5
-	-	-	-	-	-	-	-	-	1	1.5	-	-	2	2
14	15	16	17	18	20	22	24	28	32	36	40	44	48	52
2.6	3	3.8	4.5	5.5	7	8.5	10	13	16	18	21	24	27	30
2.74	3.14	3.98	4.68	5.68	7.22	8.72	10.22	13.27	16.27	18.27	21.33	24.33	27.33	30.33
2.46	2.86	3.62	4.32	5.32	6.78	8.28	9.78	12.73	15.73	17.73	20.67	23.67	26.67	29.67
1.8	2	2.6	3.1	3.6	4.7	5.7	6.8	9.2	11.2	13.7	15.7	17.7	20.2	22.4
1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.82	7.78	9.78	11.73	13.73	15.73	17.73	19.67
1.5	1.73	1.73	2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43	13.72	16	16	19.44
1.4	1.6	2	2.5	3	4	5	6	8	10	12	14	16	18	20
1.26	1.46	1.86	2.36	2.86	3.82	4.82	5.7	7.64	9.64	11.57	13.57	15.57	17.57	19.48
1.3	1.5	1.5	2	2.5	3	4	5	6	8	10	12	14	14	17
1.32	1.52	1.52	2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025	12.032	14.032	14.032	17.05
1.36	1.56	1.56	2.06	2.58	3.08	4.095	5.14	6.14	8.175	10.175	12.212	14.212	14.212	17.23
0.6	0.7	1	1.1	1.3	2	2.5	3	4	5	6	7	8	9	10
0.5	0.55	0.55	0.85	1.15	1.4	1.9	2.3	3	4	4.8	5.8	6.8	7.8	8.6

Screw Thread
d

P	Pitch	Coarse thread
		Fine thread pitch-1
		Fine thread pitch-2
b	Ref.
d_k	plain head	max
	knurled heads	max
	min
d_a	max
d_s	max
	min
e	min
k	max
	min
s	Nominal Size
	min
	max
t	min
w	min

2.5	3	3	3.5	3.5	4	4.5	5	6.5	6	6	6	6	6
1.5	2	2	2	2	3	3	3	4	4	4	4	4	4
2	-	-	-	-	-	-	-	-	-	-	-	-	-
56	60	66	72	78	84	96	108	124	140	156	172	192	212
33	36	40	45	50	54	63	72	84	96	108	120	135	150
33.39	36.39	40.39	45.39	50.39	54.46	63.46	72.46	84.54	96.54	108.54	120.54	135.63	150.63
32.61	35.61	39.61	44.61	49.61	53.54	62.54	71.54	83.46	95.46	107.46	119.46	134.37	149.37
24.4	26.4	30.4	33.4	36.4	39.4	45.5	52.6	63	71	79	87	97	107
22	24	27	30	33	36	42	48	56	64	72	80	90	100
21.67	23.67	26.67	29.67	32.61	35.61	41.61	47.61	55.54	63.54	71.54	79.54	89.46	99.46
19.44	21.73	21.73	25.15	27.43	30.85	36.57	41.13	46.83	52.53	62.81	74.21	85.61	97.04
22	24	27	30	33	36	42	48	56	64	72	80	90	100
21.48	23.48	26.48	29.48	32.38	35.38	41.38	47.38	56.26	63.26	71.26	79.26	89.13	99.13
17	19	19	22	24	27	32	36	41	46	55	65	75	85
17.05	19.065	19.065	22.065	24.065	27.065	32.08	36.08	41.08	46.08	55.1	65.1	75.1	85.12
17.23	19.275	19.275	22.275	24.275	27.275	32.33	36.33	41.33	46.33	55.4	65.4	75.4	85.47
11	12	13.5	15.5	18	19	24	28	34	38	43	48	54	60
9.4	10.4	11.9	13.1	13.5	15.3	16.3	17.5	19	22	25	27	32	34

Legend:

d - the nominal diameter of the thread
k - head height
t - groove depth
dk - head diameter
L - length of bolt
s - size of the internal hexagon

Makings:QBH

Steel: 8.8, 10.9, 12.9
Stainless: A2, A4
Plastic: -
Non Ferrous: -
Thread: 6g, 5g6g for strength 12.9

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

A2-70 A2-80 A4-70 A4-80

Mechanical property

	化学成分CHEMICAL COMPOSI(% )
Type	C碳	Si硅	Mn锰	P磷	S硫	Ni镍	Cr铬	Mo钼	Cu铜	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
410	0.015	1.00	1.00	0.04	0.03		11.5-13.5

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.

Company Profile

Jiaxing City Qunbang Hardware Co,ltd is a productiondesignsales and after-sales as one of the fasteners business,The company is located in HangjiaHu Plain,close to ShanghaiNingboZhapu ports.The geographical position is superior,the transportation is convenient,has created the natural superiority for the export.

The company mainly produces high-strength fasteners business, bolts and nuts are the main,the main standard are DIN/ANSIASME/JIS/UNI/ISO/AS/BS/GB and so on.The product massively applies in the bridgeroadthe petroleum pipeline facilitythe wind power generation and steel structure project. Carbon steel bolts mainly have 4.8、5.8、6.8、8.8、10.9、12.9,nuts mainly have 4、6、8、10,the main material of stainless steel fastener is 201/304/316.QBH from its establishment to he present,after ten years of development,it is equipped with perfect testing equipment,and SGS and TUV have a good cooperation,each batch of products is accompanied by a 3.1 or 3.2 certificate,further escort the quality of the company.

In 2017,we registered the trademark “QBH” in the CHINA、EU、United States,and has six fastener product patents,has obtained the Zhejiang Province science and technology small and medium-sized enterprise certificate as well as the ISO9001:2000 cerfiticate.With the continuous development and expansion of the company,as well as customer demand for product diversification,on the basis of its original production,in order to further enhance the potential for cooperation with customers,as well as to provide competitive prices.Starting in 2015,QBH has taken part in several fastener enterprises one after another,the product variety is more abundant and the price is more advantageous,and the quality can also be well controlled. QBH has always been to provide customers with efficient and convenient service and quality products,and create a pleasant trading process for customers for the mission,deeply participate in customer construction projects and make progress together with customers,this means that we need to provide better and more cost-effictive solutions,so as to help customers stand out from the competition.

QBH promises to always provide you with excellent quality,efficient service and very competitive prices.We believe that the cooperation between us is not only based on business,but also hope that we can open new markets on the basis of win-win situation.And thank all the customers in the past to give us great support and help,make us grow up gradually,at the same time also hope that in the nere future,and you can establish new business relations.

Product Tags:

stainless steel square head bolt hexagon socket head bolt titanium hex head bolts

Stainless Steel Hexagon Hex Socket Allen Head Bolt

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Stainless Steel Hexagon Hex Socket Allen Head Bolt

Stainless Steel Hexagon Hex Socket Allen Head Bolt

Current norm: DIN EN ISO 4762 Equivalent norms: ISO 4762; CSN 021143; PN 82302; UNI 5931

Legend:

Makings:QBH

Stainless Steel Hexagon Hex Socket Allen Head Bolt

Current norm: DIN EN ISO 4762
Equivalent norms: ISO 4762; CSN 021143; PN 82302; UNI 5931