Stainless Steel Hexagon Socket Button Head Screws / Cross Recessed Pan Head Screws With Collar

Stainless Steel Machine Screws ISO 7380 Hexagon socket button head screws

1. Description:

Cross recessed Pan Head Screws With Collar.

From the outset Phillips pan head screws screw screws strand ordered into production industry manufacturers, certainly first detected screw wire diameter sizes, materials and testing screws, screw diameter is generally used calipers to measure the diameter size, whether self-closing ordered the same size. After these good detection is detected in the production process, the head of the screw from the fight started, determine the size of the head, head-to-edge, diagonal, cross groove depth, screw tolerance and so on. These are used to detect the caliper. All aspects of the testing while rubbing the teeth is the main thread that can pass only through regulation, regulation screw thread can not pass through, stopping only regulation. In the second plating is the measurement problem. Well after plating, it is not in line with environmental requirements, can not be too time required for salt spray. Tools environmental testing machine, salt spray test machine.

In short, cross recess Screws production and marketing process, the use of quality tools necessary to detect screw certainly have, and now you want to summarize summarized as follows: calipers, hardness tester, salt spray machine, environmental testing machine, and so on through regulation ended Wait.

What is the cross, it is the head of the screw is cross-shaped, the cross is a cross with a fine blanking, stamping made. For the material, phillips pan head screws are made of iron which is into carbon steel, stainless steel is also divided. There are three types of carbon steel, low carbon steel, middle carbon steel, high carbon steel. Stainless steel also has different type: stainless steel SUS201 stainless steel SUS304, stainless steel SUS316, stainless steel SUS404 and the like.

Usually it fingertips head, coarse teeth, hard wood screws, there are aluminum, plastics. A special self-tapping screws for metal threaded hole opening is called tapping.

Cross recessed pan head self-tapping screws are used for non-metal or soft metal, do not hit the hole and tapping low; self-tapping screws are pointed, so as to "self-tapping"; Ordinary screw heads are flat. The self-tapping screws is to drill hole without tap holes. The screws are different with general screws.

2. Specification

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.