Qbh Customized Roof/Ground Rack Bracket Mounting Screw Washer Accessories for Solar Panel Installation Kit

• After-sales Service: 10 Years
• Warranty: 10 Years
• Material: Stainless Steel
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: QBH-Solar Panel Bracket System
• Type: Hexagon Socket Head
• Transport Package: 25kgs/Box, Bulk in Pallet
• Specification: M5-M20
• Trademark: QBH
• Origin: China
• HS Code: 73181500
• Production Capacity: 500tons/Year
• Package Size: 26.00cm * 26.00cm * 14.00cm
• Package Gross Weight: 25.000kg

Product Description

Product Description

DIN912 High Tensile Stainless Steel Bolts
 
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.


 
Specification - DIN 912 - Hexagon Socket Head Cap Screws

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

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: A2-70  A4-80
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


Product Grade
A2-70   A2-80   A4-70   A4-80
 

Mechanical Property

 

	CHEMICAL COMPOSI(% )
Type	C	Si	Mn	P	S	Ni	Cr	Mo	Cu	Others
	≤	≤	≤	≤	≤	≥	≥	≥	≈
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

 


Solar Bracket Stamping Washers Description : 

Used in photovoltaic, solar energy equipment fixed in installation.
Can customize different size according to your actual needs shape accessories
1. High quality material (SUS304) with good rust-resistance.
2. OEM: customized is acceptable and welcome
3. Competitive price

STYLE	Stainless steel photovoltaic, solar energy equipment accessories Non-standard stamping parts
SUPPLIER	QBH
WEB	qbfastener.en.made-in-china.com
STANDARD	Nonstandard
SIZE	According to the drawings
CLASS	ss304/316
Coating	Customized
MATERIAL	stainless steel
PACKING	bulk/ boxes in cartons, bulk in polybags/ buckets, etc.
PALLET	solid wood pallet, plywood pallet, ton box/bag, etc.

 
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
 
 

Free Samples for standard fastener from Jiaxing City Qunbang Hardware
We Promise:
1.High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service
 

FAQ
1.What's your experience like?

Our general manager has been engaged in the export of fasteners since 2005. 
Our team can provide you with professional fasteners selling and smooth export services.

2.How about your price?
High quality products with reasonable price. Please give me a inquire, We will quoted you a price for you refer at once.

3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you MTC and mill certificate when the goods is finished.

4.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce your goods.

5.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requirement.

6.What is your payment term?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order. 


Awaiting for your kind inquiry! Thanks & best regards!
For more information:  http://qbfastener.en.made-in-china.com