Fasteners: Square Head & Square Set Screw
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100000 pc
- Supply Capability:
- 10000000 pc/month
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Quick Details
Place of Origin: Zhejiang, China (Mainland)
Brand Name: CMAX
Packaging & Delivery
Packaging Details: | box,carton,pallet |
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Delivery Detail: | 30days or advance |
Specifications
Thread forming screws
Material:Steel or stainless steel
According to drawing
1,Products Detailes | ||
Products | bolt,screw,nut,washer,pin,rivet and non-standard fastener | |
Size | Standard and Non-standard according to drawing or samples | |
Machines | auto pressing machines, automatic heading machine, cold header high-precision surface grinder machine, involantary grinder machines,Digital Micro Vickers Hardness tester, Electrolytic metrical thickness gauge, Vision Measuring Machine,Fischer Scope X-ray Thickness Gauge and so on | |
Material | 1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420 | |
2,Steel:C45(K1045), C46(K1046),C20 | ||
3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), | ||
C27200CuZn37), C28000(CuZn40) | ||
4.Bronze: C51000, C52100, C54400, etc | ||
5.Iron: 1213, 12L14,1215 | ||
6.Aluminum: Al6061, Al6063 etc | ||
7,.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045 | ||
8, Alloy steel: SCM435,10B21 | ||
Surface Finishing | Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate, Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. | |
Heat Treatment | Tempering,Hardening,Spheroidizing,Stress Relieving. | |
Standard | ISO,GB,DIN,JIS,ANSI,BSW | |
Manufacture Process | Heading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping/Baking/QA/Package/Shipping | |
Sample | we can supply the samples for free,if the samples we have in stock | |
Lead time | 10-15 working days as usual,It will based on the detailed order quantity. | |
Carton size | 36*24*16 CM &36*24*12 CM | |
Pallet size | 110*100*90 CM | |
Warranty | we confirm our goods will satisfy your request of 100% | |
After sales service | we will follow up goods for every customer and help solve problem after sales. |
- 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:The idiom of the screw
- Meaning modesty, that their own small insignificant, insignificant but indispensable.
- Q:There are some screws, is installed in the electrical, power, electronic products on the material, ask how to correctly install the screws?
- After we understand the characteristics of the screw, we can proceed to the next step. For example, we use the hands of a 8.8-wide hexagonal screws, then we have mastered the 8.8 hexagonal screws, the use of screws can be used to wipe some of the oil, so that we can protect the screws, in the invisible Which extended the life of the screw. And we have to use the 8.8-grade hexagon screw in the process, we will be able to know that we need to properly protect the screw head inside the hexagon, to prevent 8.8 grade hexagon screw skid, because we know 8.8 grade hexagon screw More difficult to take out. Then we can think of this screw should be used in what place? We can not put a small number of digital screws on the large industrial above, so that the screws can not withstand the pressure of large industrial above, so we need is to help the screw to choose a suitable place, so the screw on the matter The value of the.
- Q:Is the tail screw? If it is mainly used in what place? If not what are they different?
- Normally, it should be called drilling screws, screws are the use of the object of the circular circular rotation and friction of the physical and mathematical principles, step by step to tighten the tools of the tools. Drilling screw is the front of the screw with self-tapping the head of the wood screws. Screw is thousands of years of people in the production of common inventions, according to the application field, it is the first major inventions of mankind. Drilling screws are in recent years people's new invention, also known as self-tapping screws. Main steel for connecting between the need for ordinary or high-strength bolts, plates with self-tapping screw connection. It can not be used for metal and metal bonding.
- Q:What does the screw m4x6 mean?
- Diameter 4mm length 6mm (just the length of the thread)
- Q:M4.8 * 25 What does it mean in screw size?
- You should ask the specifications of the method should be very rare 4.8 should be more from the tapping, should not use M said, M generally said that the machine thread
- Q:Why are the screws of the screw?
- I have not heard the concept of non-standard thread, because the thread is used to assemble, so the lathe in the car thread, the amount of feed and other parameters are given.
- Q:What is the invention of the screw?
- Hello hello as early as 2000 years ago appeared, but it will be used for fixed objects to be delayed until about 500 years ago. The first person who describes the spiral is the famous ancient Greek scientist Archimedes, which uses a wooden bucket to make a spiral object used to extract water from one plane to another plane for irrigation. By the middle of the Middle Ages, craftsmen used wood nails or metal nails to connect the wood structure of the building. This should be the real predecessor of the screw. In the 16th century, people began to produce spiral nails. And to the 18th world, people began a large-scale production of fastening objects with a screw nail. The afternoon is helpful to you
- Q:How to remove the broken screw?
- Thick (5 or more) easy to handle, playing a hole with a dedicated wire on the line. Fine can be trouble, it is better to just re-drilling tapping.
- Q:Why should the screw twist clockwise?
- Because the screw on the original flute is the clockwise direction of it
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Send your message to us
Fasteners: Square Head & Square Set Screw
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100000 pc
- Supply Capability:
- 10000000 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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