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ISO 7380 Hexagon Socket Button Head Screws Steel Class 10.9 Black

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

Contact name:Lance

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ISO 7380 Hexagon Socket Button Head Screws Steel Class 10.9 Black

Country/Region	china
City & Province	jiaxing zhejiang
Categories	Screws

Product Details

ISO 7380 Hexagon Socket Button Head Screws Class 10.9 Black

ISO 7380 - Hexagon Socket Button Head Screws Class 10.9 Black

Socket button head cap screws ISO 7380 are not intended for high strength application. The purpose of producing them with a strength of the property class 10.9 is to increase the wear resistance of the sockets.

ISO 7380 : 2004 Hexagon socket button head screws,which was prepared by ISO/TC 2 ‘Fasteners’ of the International Organization for

Standardization, has beenadopted by Technical Committee CEN/TC 185 ‘Threaded and non-threaded mechanical fasteners andaccessories’, the

Secretariat of which is held by DIN, as a European Standard.

Tightening Procedure:
Insert the key into the socket and apply the torque on the nut while holding the key. Should however, the torque be applied on the screw itself it should be reduced accordingly.
R.S. Torque = Recommended SeatingTorque

Legend:

l - length of bolt
d - the nominal diameter of the thread
k - head height
dk - head diameter
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

Notes:
-

Table according to ISO 7380-1:

Thread d		M3	M4	M5	M6	M8	M10	M12	M16
P		0,5	0,7	0,8	1	1,25	1,5	1,75	2
b	ref.	18	20	22	24	28	32	36	44
da	max.	3,6	4,7	5,7	6,8	9,2	11,2	13,7	17,7
dk	max.	5,7	7,6	9,5	10,5	14	17,5	21	28
dk	min.	5,4	7,24	9,14	10,07	13,57	17,07	20,48	27,48
dL	ref.	2,6	3,8	5	6	7,7	10	12	16
ds	max.	3	4	5	6	8	10	12	16
ds	min.	2,86	3,82	4,82	5,82	7,78	9,78	11,73	15,73
dw	min.	5	6,84	8,74	9,57	13,07	16,57	19,68	26,68
e	min.	2,303	2,873	3,443	4,583	5,723	6,863	9,149	11,429
k	max.	1,65	2,2	2,75	3,3	4,4	5,5	6,6	8,8
k	min.	1,4	1,95	2,5	3	4,1	5,2	6,24	8,44
r1	max.	3,7	4,6	5,75	6,15	7,95	9,8	11,2	15,3
r1	min.	3,3	4,2	5,25	5,65	7,45	9,2	10,5	14,5
rs	min.	0,1	0,2	0,2	0,25	0,4	0,4	0,6	0,6
rt	min.	0,3	0,4	0,45	0,5	0,7	0,7	1,1	1,1
s	nom.	2	2,5	3	4	5	6	8	10
	max.	2,08	2,58	3,08	4,095	5,14	6,14	8,175	10,175
	min.	2,02	2,52	3,02	4,02	5,02	6,02	8,025	10,025
t	min.	1,04	1,3	1,56	2,08	2,6	3,12	4,16	5,2
w	min.	0,2	0,3	0,38	0,74	1,05	1,45	1,63	2,25

Stainless steels can be divided into three groups of steel - austenitic. ferritic and martensitic. Austenitic steel is by far the

mostcommon type (>90% of commercial fasteners). The steel groups and strength classes are designated by a four-digit

sequenceof letters and numbers (eg A2-70) as shown in the following table. DIN EN ISO 3506 governs screws and nuts made

fromstainless steel.

Process flow

Cold forging

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

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.

FAQ

1. How do you let me trust you.

Jiaxing City Qunbang Hardware Co.,ltd hs its own right of import and export,QBH trademark in China,United States,European Union have been registered.At the same time,you can also check the registration information of our company in the China industry and Commerce system.

2. How about your price.

We will be based on different markets,for different quality and quantity,tailor-made prices for customers,in order to achieve win-win goal.

3. How do you control your quality.

Incoming quality contral( IQC)→Process Quality control(PQC)→Output quality control(OQC),and the random samples is sent to TUV for testing.If the customer received the goods and found quality problems,QBH company promises to be responsible for returning money or replenishing the goods

4. Could you provide free samples?

For new customer, We can provide free samples for standard fastener, But the clients will pay the express

charges. For old customer, We will send you free samples and pay express charges by ourself.

5. Do you accept small order?

QBH company can accept small orders if we have them in stock.Generally speaking,the stock probability of stainless steel fasteners is higher than that of carbon steel fasteners.

6. How about your delivery time

What we pursure is the high efficiency movement pattern,the stainless steel fastener delivery time about 15days,the carbon steel fastener will it about 30days

7. What is your packing.

Usually 25KG/carbon,36CTNS on the pallets,or 20-30kg/Bags,then on the pallet,QBH company personalized packagingis also available,like 10PCS/plastic bag or 10pcs/box,it can print some information

such as LOGO and pattern of customers.

8. What is your payment term

Normally,our terms of payment are TT and L/C,if we cooperate for a long time,we can reach the point of mutual trust,and fully support our customers to become bigger and stronger in the local market.

Not only in the price concessions,but also in the payment can also be made on credit,Specific credit sales time needs to be negotiated separately