DIN7504 Hex Washer Lange Head Self Drilling Screw
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 10000000 piece/ pieces per month pc/month
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Product Description
Product Name | DIN7504 Hex Washer Lange Head Self Drilling Screw |
Material | Carbon Steel, Stainless Steel 201/ 304/ 316 or others. |
Size | 8#-18*13 ~ 14#-14*125 |
Standard Model | DIN ANSI JIS ASTM |
Min Order | 1000piece/ pieces |
Packaging & Shipping
Packing | Inner Box + Carton Box + Pallet or Under Your Requirement |
Supply capacity | 10000000 piece/ pieces per month |
Delivery time | 5~20 days after deposit |
Export market | Asia, America, Europe, Africa, markets. |
Our Services
1. Reliable Supplier |
2. High Quality |
3. Standard Producing Technology |
4. Competitive Factory Price |
5. Fast Delivery |
Product Picture:
- Q:How is the screw nailed to the wall
- First with the diameter of the nail into the half, and then come up with that nail, then screw into the screw
- Q:What is the meaning of the screw and the 4 and 8?
- He means that the tensile strength of the screw minimum 400MPa, the minimum yield strength of 320MPa (tensile strength of 80%). Please refer to the national standard GB3098.1 or ISO international standard ISO898-1 the requirements.
- Q:Who knows who invented the screw?
- The spirits were invented more than 2,000 years ago, but less than 500 years for fixing things. The first person who describes the spiral is the Greek scientist Archimedes (about 287 BC - 212 BC) The Archimedes spiral is a huge spiral in a wooden cylinder used to The water is raised from one level to another, and the fields are irrigated. Its true inventor may not be Archimedes himself. Maybe he just described something that already existed. Perhaps it was the ancient Egyptian craftsmen who had designed it to use the irrigation on both sides of the river. Archimedes spiral in the ancient society are used to raise water, no one considered to change it into a fixed piece. Archimedes spirals are widely used for water lifting. For example, the Romans used it to drain the mine. In the Middle Ages, carpenters used wooden nails or metal nails to connect furniture and wooden structures. In the 16th century, nail workers began to produce spiral nails, these nails can be more firmly connected things. It was a small step from this nail to the screw. At the end of the eighteenth century, screws were quite popular as fixed parts, because at that time a cheap production method had been found. Screwdriver (chisel) appeared in London around 1780 years. The carpenter found that screwing the screw with a screwdriver was better than a hammer and could fix something better, especially when a fine screw was encountered.
- Q:When do flat washers use GB95 when using GB97.1?
- There is no difference in the application. See the tolerance, the high requirements of the use of GB97.1. in order to save money, and the application environment is not high, use GB95
- Q:Engineering argument, usually referred to as the M3 screw, M refers to what is the meaning? The Please instruct the engineering staff.
- M: ordinary thread;: screw that thread diameter (ie, the top of the thread) is 3mm, nuts that thread diameter
- Q:What is a screw? What is a nail? What is the concept? What is the difference!
- The screw is a screw, a small cylindrical or conical metal rod with threaded parts, with a slotted or pocketed head, used alone. Machine nail is used for mechanical attack on the use of a good thread, or with nuts used to fasten the product, according to the material requirements have a certain force. The range of screws is wide, the nail is just one of the screws inside.
- Q:What is the difference between Chinese-made screws and US screws?
- China-made screws and the United States is no essential difference between the screws, and now the world are using the screws in China.
- Q:Is it hard to heat the fasteners?
- Heat treatment mainly refers to the dipped fire. Dip the fire is not dipped into the water, is the oil. So the quality of oil, dipped in the temperature of the fire, dipped in the fire time are demanding Moreover, some special requirements need to double the fire, the difficulty is indeed great. In addition, heat treatment often take into account the requirements of the next step surface treatment, so have to consider
- Q:Stud that head or nut that ah, I need to have the authority of the provisions of the document, please know that the prawns are told, thanks to!
- The effect of several kinds of flat pad, a height adjustment bolt or nut in the side is convenient; two is to increase the contact surface, flat pad at the ends of the more; three is the stable friction coefficient, flat pad on both sides, and tighten the pad is not allowed to transfer medium; four is to prevent injury to pull bolt, in order to prevent stress concentration, the bolt head and the bolt six transition angle bar has great chamfer hole chamfering small, tighten the bolts if the head injury, this washer the chamfered surface into the six hexagon head bolts can be avoided.
- Q:The main meaning is that the design to make some specific requirements to achieve consistency.
- Easy to install, disassemble; to ensure long-term solid does not fail (life); do not exceed the standard selection, cost savings;
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DIN7504 Hex Washer Lange Head Self Drilling Screw
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 10000000 piece/ pieces per month pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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