Many of our storefront systems are impact tested and utilize either our MegaThermÂ®, or ThermaBond PlusÂ® thermal barrier technology to improve performance and enhance occupant comfort. All YKK AP products are manufactured, finished, and inspected for quality in our environmentally certified, state-of-the-art facility in Dublin, GA.
A milliradian, often called a mil or mrad, is an SI derived unit for angular measurement which is defined as a thousandth of a radian (0.001 radian). Mils are used in adjustment of firearm sights by adjusting the angle of the sight compared to the barrel (up, down, left or right).
Mil is a length measurement unit. Mil, also known as a thou is equal to one thousandth of an inch (0.001 inch). The mil or thou is still used in the United States to measure thickness of various materials. The mil should not be confused with a millimeter (0.001 meter), a multiple of a base metric unit of length.