A2-70 A4-80 M16 M20 DIN7504 Stainless Steel Cross Recessed Countersunk Head Self-Drilling Tapping Screws

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.

Self-drilling screws, also known as TEK screws, do not require a hole to be drilled prior to use which cuts down on time needed to drill and fasten materials by combining them. These have the same heads as traditional bolts and screws, but the fastener is designed with a drill flute on the tip to drill/fasten at the same time. Useful for quick sheet metal fastening and other applications like metal to metal or wood to metal.




  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.

Self-drilling screws, also known as TEK screws, do not require a hole to be drilled prior to use which cuts down on time needed to drill and fasten materials by combining them. These have the same heads as traditional bolts and screws, but the fastener is designed with a drill flute on the tip to drill/fasten at the same time. Useful for quick sheet metal fastening and other applications like metal to metal or wood to metal.




 

GOST Flanges is a Russian standard for flanges. GOST 12820-80 are Plane flanges. GOST 12836-67 are Blind Flanges. GOST 12821-80 are Welding Neck Flanges 

GOST Flanges

GOST Flanges,GOST 33259 Flanges,GOST 12821 Flanges,Forged GOST Flanges

Shandong Zhongnuo Heavy Industry Co.,Ltd. , https://www.zhongnuoflange.com