ASTM A325 Heavy Structure Bolt

We are committed to producing high-quality technologically leading Screw, wheel bolt, DIN standard hex bolt to enhance customer experience and gain their support. We focus closely on the development strategy and the actual business development to clarify the focus and depth of compliance management. 'Integrity, truth-seeking, hard work, striving' is the spirit of the company, which is also the company's commitment to every customer. We try our best to build a modern enterprise with unique and quality products.

Shanghai Jinrui Norm Parts Supplies Co.,Ltd is one of the leading gb carriage bolt manufacturers and suppliers in China, welcome to buy gb carriage bolts, gb standard carriage bolt from our factory and company.

This standard of the GB carriage bolt stipulates the thread size from M5-M20. As the aquare neck,the depth of square shall be measured,parallel to th axis of bolt at the midpoint of the flats   of square,from the bottom of square to the bearing surface for bolts having flat bearing surface type heads,and to the intersectio of flats of square with the conical bearing surface for bolts having countersunk head.The corners of square neck may be rounded to the extent specified in the respective dimensional tables and need not be filled out for the total depth of square.

We have reliable raw material suppliers, independent product manufacturing industry chain, sophisticated testing equipment and advanced production technology to ensure that our ASTM A325 Heavy Structure Bolt is ahead of other brands. We will eagerly fulfill all the costumers' needs as we have done and offer the high-quality, high-rate service. Sincerely welcome the present and prospective customers to cooperate with us. In order to establish a good cooperation relationship with customers, enhance mutual communication and exchange, collect, sort out and establish complete customer file information.