SharePoint Foundation - Add Master Page to Subsite

In SharePoint foundation, one way to move master page from site collection to subsite is to download the master page from site collection and upload that master page to the subsite.

site collection master page look and feel:

original subsite master page look and feel:

Here are the steps to achieve set the subsite master page from site collection master page.

Step 1:
In site collection, click on Site Actions > Site Settings > Master Pages (This link will go to Master Page Gallery)

Step 2:
Download the master page that is used in the site collection.

Step 3:
Go to subsite master page gallery

Step 4:
In the ribbon, click on Files > Upload Document > Then browse and upload the site collection master page > Ok

Step 5:
Leave the default settings, and click Save

Now the master page is uploaded

Step 6:
Go to SharePoint Designer and open subsite. Then click on Master Pages, and select site collection master page (that was uploaded), then right click the master page, and then click:
Set as Default Master Page
and, Set as Custom Master Page

Now go to subsite, and the site collection master page should be applied to the subsite master page