DIN 7981 Cross Recessed Pan Head Stainless Steel 304 316 Self Drilling Screws

DIN 7981 Cross Recessed Pan Head Stainless Steel 304 316 Self Drilling Screws

1.Product Description

Machine screws differ from bolts as they have a shaft with a helical groove or thread formed on its surface. Screws, some people call it the screws [Screw] (screw), the screw (lead screw). In fact, the screw is a general term, and screw, lead screw are mutually different.

Machine screws have machine threads for use with a nut or in a tapped hole. Also referred to as a stove bolt.a threaded fastener, either used with a nut or driven into a tapped hole, usually having a diameter of about 1/4 inch (6.4 mm) or less and a slotted head for tightening by a screwdriver.

Screws generally called wood screws; there is kind of a pointed front end, larger pitch, generally used for fastening wooden parts, plastic parts.

Machine screws have a uniform diameter the entire length of the shaft as opposed to tapered screws which have a pointed tip.A lead screw machine screw (mechanical screw), flat head is kind of the tip of a variety of screws, smaller pitch, uniform, generally used for fastening metal and machine parts. They are used to fasten machine components, appliances and more.Pan heads are slightly rounded with short vertical sides. Phillips drive is x-shaped for installation with a phillips screw driver.

Machine screws are described as numbers with the first number designating the diameter and the second number, the number of threads per inch. For example: 0-80, 2-56, 3-48, 4-40, 5-40, 6-32, 8-32, 10-32, and on up to size 16. In addition, machines screws are referred to coarse or fine threads. Fine thread machine screws are generally used when greater strength is desired.

Most Active Screw Machine Screws thread sizes are available in UNC or UNF.

2.Specification

3.Application

1, metal curtain wall light metal compartment, and other indoor and outdoor installation.
2, the general angle, channel, iron and other metals combined installation.
3, car trunks, containers, shipbuilding, refrigeration equipment and other assembly work.

4.Advantages

Jiaxing Haina Fastener co. Ltd was established in 2010, located in the hometown of fasteners jiaxing city. For many years of export experience, our products has been best-selling in Europe, the United States, the Middle East and Southeast Asia. The products are manufactured by more functions machine, which is brought in domestic and foreign well-known enterprises. The products made are fully compatible with the international standards, well received by domestic and foreign customers. Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.

Product standards including DIN, ISO, GB and ASME/ANSI, BS, JIS AS. Main levels of carbon steel: 4.8, 4.8, 6.8, 8.8, 10.9, and 12.9 grade, the main material of stainless steel SS201, SS304, SS316 and various kinds of special stainless steel.

The width range of our products can be divided into auto fasteners, mechanical fasteners, construction fasteners, power fasteners, railway fasteners, household electrical appliances fasteners and chemical fasteners,

We have first-class service team, so we can meet the different requests for a set of customers. We solemnly commitment, first-grade quality, timely delivery guaranteed

Reasonable price and service paramount, forward to the operation principle of quality first and customer first, pursuit of excellence to create first-class brand, our aim is brand promoting development, management promoting earnings, warmly greeting home and abroad new and old customers to communicate and cooperate to seek greater success and brilliant future.