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                        Collar Nuts
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                        Collar Nuts

                        Ningbo Haixin is the biggest collar nuts factory in China. With 30 years of fasteners production experience, our factory can produce various high quality collar nuts with different diameters, raw materials and surfaces. As our strong and advantage products, the collar nuts have been well affirmed by wind power giants and widely exported to Germany, Denmark, Norway, Spain, Great Britain, Poland, Australia, India, etc.​ And HX® has become a well-known trademark and brand in global fasteners fields. We hope to establish a friendly cooperative relationship with your company with our high quality collar nuts, reasonable prices, considerate service and create a better future together.

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                        Product Description


                        Collar nuts are a kind of flange nuts. Collar nuts have a wide flange at one end that acts as an integrated, not-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface. Collar nuts have become more and more popular in the wind energy field. Many wind turbine customers have changed common HV hex nuts to collar nuts. This is a trend, because collar nuts have better and safer performance.



                        Collar Nuts Parameters

                        Description
                        Raw Material/ Steel
                        Regular Sizes
                        Finish
                        Collar Nuts
                        40Cr
                        M36,M39,M42,M45M48,M52,M56, M64, M72
                        Plain
                        Flange Nuts
                        35CrMoA

                        HDG
                        Special Flange nuts
                        42CrMoA

                        flZnLnc

                        Collar Nuts Features

                        There are higher quality requirements for collar nuts. Our factory strictly carries out every test of the collar nuts. Besides the common physical and mechanical property inspection and test, collar nuts often have special requirements on the perpendicularity and ran out and lubrication. Our factory can produce collar nuts with run out within 0.1. And we can provide collar nuts with carious flZnLnc coatings. Collar nuts are intensively used in turbines, wind power energy, street light fixed, pipelines, and oil and gas fields.

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