SS304 SS316 A2 A4 M4 M6 M8 M10 M12 DIN603 DIN608 Stainless Steel Round Head Square Neck Carriage Bolts/Mushroom Head Carriage Bolt with Short Neck or Long Neck

With strong research and development capabilities, we strive to develop a variety of new and practical spring washers, blind rivet, ASME ANSI flat washers and continue to provide users with better application solutions. We are a manufacturer with strong technical force, high quality and commercial reputation. We have always pursued an advanced management model, and adhere to provide customers with quality products and services as a business purpose. We hope to mobilize the enthusiasm of employees, stimulate their creativity and enhance corporate cohesion. We serve and win customers through continuous improvement, comprehensive and enthusiastic pre-sales and after-sales services.

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.

Using a full scientific good quality administration system, very good quality and superior faith, we win good standing and occupied this discipline for SS304 SS316 A2 A4 M4 M6 M8 M10 M12 DIN603 DIN608 Stainless Steel Round Head Square Neck Carriage Bolts/Mushroom Head Carriage Bolt with Short Neck or Long Neck. We warmly welcome all intrigued prospects to make contact with us for more details. Adhering to the concept of innovation leading the future, our company adheres to the development path of independent innovation and is committed to providing first-class products and services to global customers.