Ningbo OuKaiLuo Hardware Co.,Ltd.
Ningbo OuKaiLuo Hardware Co.,Ltd. Quality Fasteners & Service Provider
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Steel Hex Pozi Drive Head Thread Cutting Machine Screw White Zinc
| Material | Steel |
| Head type | Hex washer head |
| Drive type | Pozi drive |
| Thread type | Machine thread |
| Thread dia. | 3.8mm |
| Point type | Thread cutting |
| Length | 12mm |
| Grade | 6.8 |
| Finish | Blue zinc plated |
Product Description
We know that the screw is screwed into the product as a fastening action, the screw head and the surface of the product are acting on each other, fastening the connection between the parts of the product.The smaller the contact area of the screw head and the product, the greater the pressure, the more easily damaged the surface of the product.While this belt screw than ordinary screw head without interface area is much bigger, and product contact area, the greater the more is not easy to damage the surface of the product, which is why will appear this kind of screw with medium.It is different from the screw and the flat cushion, the screw is used to prevent the screw loose.This is designed to protect the product from damage.
Materials
Screws and bolts are usually made of steel. Where great resistance to weather or corrosion is required, like in very small screws or medical implants, materials such as stainless steel, brass, titanium, bronze, silicon bronze or monel may be used.
Galvanic corrosion of dissimilar metals can be prevented (using aluminum screws for double-glazing tracks for example) by a careful choice of material. Some types of plastic, such as nylon or polytetrafluoroethylene (PTFE), can be threaded and used for fastenings requiring moderate strength and great resistance to corrosion or for the purpose of electrical insulation.
Often a surface coating is used to protect the fastener from corrosion (e.g. bright zinc plating for steel screws), to impart a decorative finish (e.g. japanning) or otherwise alter the surface properties of the base material.
Selection criteria of the screw materials include: size, required strength, resistance to corrosion, joint material, cost and temperature.
Company Introduction
Advantages of our factory
1. Professional manufacturer for bolt,screw,nut,washer,PEM fasteners ,cnc lathe machine parts,automatic lathe parts,milling machine parts,stamping part etc.
2. More than 15 years experience
3. 100% inspection on critical dimensions with high accuracy +/-0.01-0.05mm
4. Factory direct price and on time delivery
5. Sample available
6. OEM workable
FAQ
Q: Do you accept small order?
A: Sure, we can accept any orders, we keep lots of stock for ALL STAINLESS STEEL FASTENER, CARBON STEEL NUT AND PART BOLT,Like hex weld nut, cage nut, wing nut, square weld nut,cap nut, hex nut,flange nut.Metric 8.8Grade,10.9Grade 12.9Grade Hex bolt and Hex Socket cap screw,Part ASME Hex cap screw.
Q: How about your delivery time?
A: 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.
Q: What is your terms of payment ?
A: We can accept T/T,L/C for general order ,Paypal and Western union for small order or samples order.
Q: What is your packing?
A: 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’ requests.
Q: Can we print our own logo?
A: Yes,we can make it according to your request.
Q: Can I get discounts?
A: Yes,for big order,old customer and frequent customers,we give reasonable discounts.
If you are interested in washer screw, Please do not hesitate to email us or call us. Our professional team will assit you to purchased the quality products.