Hardware Products Manufacturer OEM Self Tapping Screws , Hex Head Self Tapping Screws
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 5000000 pc/month
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Specification
1,Specification
Standard | GB, DIN, ISO, ANSI, ASME, IFI, JIS,BSW,AS,Q,HJ, |
Size | According to your request |
Materials | 1,Stainless Steel: SUS201,SUS302,SUS303, SUS304, SUS316, SUS410, SUS430 2,CarbonSteel:C1006,C1008,C1010,C1018,C1022,C10B21,C10B33,C1035,C1045, C435#,40CrMo,42CrMo 3,Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40) 4,Bronze: C51000, C52100, C54400, etc 5,Aluminum: Al6061, Al6063 etc Aluminum Alloy: Al6061, Al6063 etc 6,Titanium and Titanium Alloy: TAD,TA1-TA8,TB2,TC1-TC10 7,Alloy steel: SCM435,C10B21,C10B33 8,Iron:1213,12L14,1215,ect |
Surface treatment |
|
2:Business terms | |
Report | SGS,ROHS, |
Trade terms | EXW, FOB,CIF,CFR |
Packing | Packing: Poly bag, Small box, Plastic box, Carton, Pallet 25kgs/ carton, 36 cartons/ pallet. Carton dimension: 39cm*28cm*13.5cmpallet dimension: 100cm*100cm*80according to the customer’s requirement |
Payment terms | TT 30% deposit in advance, 70% Balance Before shipment, 100% LC at sight,Western Union. Ali- pay |
Sample terms | Sample free offered if available in stock,otherwise there will be sample charge |
3. Quality control systems
Quality Certification | SGS,ROHS, ISO9001:2008, ISO14001:2004 |
quality system | 100% of full line testing system, keep with the international standard |
Inspection equipment | Caliper, Microcline, Torsion meter, Salt atmosphere testing machine, Ring gauge, General gage, sclerometer, Projector, die gage, image screening instrument |
4. Company general impression
Company cover | 5000 square meter |
Employee | 80-100 people |
Equipment | 50 sets |
- Q: Why the screw thread more closely, spin into the more effort?
- Screw thread more dense, indicating the screw thread deep and shallow, the screw in the advance the resistance of the smaller, when the spin naturally more effort.
- Q: Screws are not slopes.
- Belong to, the slope is equal to the thread pitch than the upper circumference of the screw
- Q: No cross screwdriver, how can the screwdriver screwdriver?
- Is the big nail? This is a lot of ways to find alternatives: glasses, calculators and other flat on the plane can be used to decorate the tip of the blade, be careful not to cut the hand do not cut the mirror material.
- Q: What is a self-tapping nail? Is it used? What are the characteristics of the shape? What is the difference with ordinary screws?
- Self-tapping screw head shape with round head, flat head, semi-countersunk head and countersunk head and so on. Materials generally carburized steel, heat treatment after the surface hardness of not less than 45HRC.
- Q: What does the screw m4x6 mean?
- So, with the bolt material does not matter, no matter what kind of material you use, as long as the performance can be satisfied
- 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: This screw ye use, and how to use next to the cover
- This is an expansion screw. Take a suitable electric drill bit to drill a hole in the wall, and then put the sleeve into the eyes of the drill, put the screw into the sleeve, this than the ordinary screw firm.
- 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: How is the screw produced
- Annealing: the wire heated to the appropriate temperature, to maintain a certain time, and then slowly cooling to adjust the crystal structure, reduce hardness, improve the room temperature processing. Pickling: Remove the oxide film on the surface of the wire and form a layer of phosphate film on the metal surface to reduce the wire drawing and cold pier or forming process. To the required diameter. Practical for some products can be divided into coarse pumping (shelling) and fine pumping two stages. Molding: The wire is forged by cold forging (or hot forging) to achieve the shape and length (or thickness) of the finished product. The finished semi - finished product is rolled or tapped to achieve the desired thread. Practical for the bolt (screw) known as the rolling teeth, teeth known as the rolling teeth, nuts called tapping. Heat treatment: according to the object and the purpose of different different heat treatment can be used. Quenched and tempered steel: quenched high temperature tempering (500-650 ℃) spring steel: quenched after tempering temperature (420-520 ℃) ??carburizing steel: carburizing after quenching and then low temperature tempering (150-250 ℃) low carbon and In the carbon (alloy) steel quenched into martensite, with the tempered temperature rise, the general rule is the strength decreased, while the plasticity, toughness rise. Surface treatment: surface treatment that is through a certain method in the workpiece surface coating process, the purpose is to give the product surface appearance, anti-corrosion effect.
- Q: How to remove the broken screw?
- The other are open to grow a little, grinding flat to seize the rotation, or the middle cut a knife with a zigzag tool to turn, the bigger the better to take the iron put on the surface of the welding, or with a word tool alignment loose Open the direction of the angle to play a few turn a few times, did not save the drill through the hole directly through the big mouth to re-open teeth on the line.
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Hardware Products Manufacturer OEM Self Tapping Screws , Hex Head Self Tapping Screws
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1000 pc
- Supply Capability:
- 5000000 pc/month
OKorder Service Pledge
OKorder Financial Service
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