In about 1898, the standards for threaded fasteners based on metric dimensions were developed using Sellers' basic thread geometry, but differ from the USS in that its pitch and dimensions are based on metric units.
It differs from the USS in that its pitch and dimensions are based on metric units. In about 1898, the standards for threaded fasteners based on metric dimensions were developed using Sellers' basic thread geometry.
In about 1898, the standards for threaded fasteners based on metric dimensions were developed using Sellers' basic thread geometry. It differs from the USS in that its pitch and dimensions are based on metric units.
In about 1898, the standards for threaded fasteners based on metric dimensions were developed using Sellers' basic thread geometry. It differs from the USS in that its pitch and dimensions are based on metric units.