2-1/4 in. White Vinyl Cup Hook (10-Pack)

A:  Morning Glenn, -- The length of the Non-Vinyl-Coated, "Threaded-Metal-Screw-In" is approximately 3/4" to 13/16" in length. The length of the Vinyl-Coated Stem (between the threads and leading to the actual hook) is 1/2" in length. And the length of the Vinyl-Coated Hook is about 1 & 1/4" in length.. With the 3/4" length Threaded Screw-In, these Cup-Hooks are able to support 5 pounds of weight, (according to Pkg Description). I have approximately 25 feet of of 10/4 SOOW Extension Cord Wire (weighing approx 15 to 18 pounds) strung/run between 2 Power Inlet/Outlet Boxes, & supported by 5 of these Cup-Hooks (as Strain Reliefs), with No Issues. Hope this helps..

A:  Hello, The screw portion is .85 inches. Thank you for your inquiry!

A:  Yes

A:  No. They are self tapping. Just press and screw in.

A:  Hello, This item is says it's Easy to install by hand and the Steel screw easily installs by hand into wood, plaster, or drywall. Thank you for your inquiry.

A:  I'm not positive but being that they care vinyl coated, I would say yes. I would be sure to screw it in entirely and if permanent, would consider a bead of caulk where the vinyl meets the wood.

A:  Hello, Yes they are meant for use in wood, indoor or outdoor. Thank you for your inquiry.

A:  Hello, This item is 2 1/4" installed. Also viewable in the pictures provided. Thank you for your inquiry.