Round Head Carbon Steel Square Neck Carriage Bolts DIN 603 with Zinc Plated

We take pleasure in a really excellent name amongst our shoppers for DIN standard hex bolt, spring lock washers, fender washer CE. The implementation of the new management system improvement plan we formulated will support the company's development strategy, employee quality improvement and corporate culture construction. We provide high-quality and product services for enterprises and individuals for a long time.

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.

Since our establishment, we have won the respect of our peers, the trust and cooperation of our customers. Our business philosophy is 'professionalism, environmental protection, integrity, and win-win', striving to become the most dazzling star in the field of Round Head Carbon Steel Square Neck Carriage Bolts DIN 603 with Zinc Plated! No matter where you are from, we are here to wait for your kind request, and welcom to visit our factory. Our company strives for survival by quality and development by reputation. The requirements of users are our goal, and the satisfaction of users is our wish. We will, as always, work with you to create brilliance together, and we are sincerely waiting for your visit.