


Product Series
Our company committed to non-standard development and research on the basis of existing standard components.
DIN 571 HEXAGON HEAD WOOD SCREWS
Size:Outside diameter: Round pipe: 17mm-273mm Square pipe:15mm x 15mm - 400mm x 400mm
DIN 580 EYEBOLT
DIN 603 CARRIAGE BOLT
DIN 931 BLACK HEX BOLTS
DIN 933 HEX BOLT
DIN 6921 FLANGE BOLTS
SQUARE HEAD BOLT
STUD BOLT
DIN 985 NYLOC NUT
DIN 6334 COUPLING NUTS
DIN 6923 FLANGE NUTS
DIN934 HEX NUT
TIANJIN PIPE CORPORATION
WHY CHOOSE US?
Our company committed to non-standard development and research on the basis of existing standard components.
Quality Assurance
We have carried out strict inspection of every part and product, trying to have no quality problems in the hands of customers.
Quality Assurance
We have carried out strict inspection of every part and product, trying to have no quality problems in the hands of customers.
Quality Assurance
We have carried out strict inspection of every part and product, trying to have no quality problems in the hands of customers.
Quality Assurance
We have carried out strict inspection of every part and product, trying to have no quality problems in the hands of customers.



CONTACT US

E-mail:
dasda@qq.com

E-mail:
dasda@qq.com
WHY CHOOSE US?






Product Series
Why is the nut grade lower than the bolt
Nuts and bolts are common mechanical connectors, widely used in all walks of life, and their main role is to connect two or more parts together to complete the assembly or maintenance of the machine.
Classification of bolts and nuts
Bolt level, and the meaning of bolt levelClass 8.8 hexagon head bolt
GB 819-85: Cross Slot Countersunk Head Screw
GB/T 819.1-2000: “Cross recessed countersunk head screws Part 1: Steel Grade 4.8”
What’s the difference between bolts, screws and nuts
A bolt is a typical external threaded part and is usually labeled “B”. It has a hexagonal head that can be tightened with a wrench or wrench, or with a pneumatic or hydraulic tool.