Our Products

Tilt & Turn Friction Hinges

Friction Stays

Parallel Friction Stays

Window Handles

Stages Friction Stay

Restrictive Friction Stay

We work with the principle of producing
​quality, durable and reliable products
with the priority of customer satisfaction


Window Hardware Systems

BOSSY is a manufacturer of exterior friction stays, door&window handles, tilt and turn systems and other accessories. It is also the domestic manufacturer of friction stays used for aluminum window profiles.

About us

As BOSSY, we have been continuing to work and produce with great struggle to achieve this goal since our establishment in 2003, on the way we set out to become an international brand by offering innovative and technological products to the construction sector and the exterior accessories market.