Sure, the most popular color of iron ball bearing door hinge is chrome plated, brass plated, stain nickel plated and antique copper plated. And self color is best seller for brass ball bearing door hinges and stainless steel ball bearing door hinges. Other color is also available when you email us with your requirement, contact form is listed just below. 

Not a problem for us to supply extra screws, even you want to change the size of screws. Just feel free to let us know your request, thanks. 

Yes, Actually 100mmX75mm means 4inch X3inch. 

It depends on your actual requirement, we will need your drawing and check with our current molds to see if we can do directly without extra cost increased on the tooling. 

Standard butt hinge should be used only on residential and light-duty commercial applications. Heavy duty ball bearing door hinges are the best option for an entrance door and commercial applications, and even fire doors. 

Available from regular production line : A) 2.0mm.   B)2.5mm.  C)3.0mm

If you want the thickness of 4 inch ball bearing door hinge to be 3.5mm, please send email by filling the contact form below, we are pleased to do customization service for you.  

It does have the function of self closing in a slow way because of the rotation of ball bearing inside, but different from spring hinge, or self-closing door hinges, which is adjustable to fit the requirement of door itself. 

The hinges can be upside down itself when putting it to the doors, no matter the door is left hand or right hand. 

Most common one is 2 ball bearing or 4 ball bearing, we give the name 2BB door hinges and 4BB door hinges. 

Normal white box, color box, single blister and double blister package are available currently.