Confirmat screws

[Cooler]

I want to try out the Confirmat screws on my next cabinet project. AH Turf carries them. They list several sizes and I don’t know which size to get.

They list 5mm x 40mm (5mm x 1.57”) and 5mm x 50mm (5mm x 1.97”), They also list 7mm but I probably want to stick with the 5mm screws.

They list them “with hole” and “without hole” and I have no idea what that means.

They also sell step bits (perhaps “steep bits” makes more sense.). It appears to be a set of 4 bits in HS steel for $120.00 or a set of 4 in carbide for $160.00.

Turf is a good vendor, but they don’t supply much information in their website—probably because they are mostly dealing with professionals.

http://ahturf.com/store/index.php?route=..._3582_3584

Any guidance will be appreciated.

[jteneyck]

You can buy Confirmat screws and, yes, step drills, at Amazon.  Link  I've used them w/o buying any special drill bits, but it would be faster if you had one.  

Sorry, no clue what AH Turf meant by with or w/o hole.  

John

[gjohn]

I believe the hole is short hole along the axis of the screw which allows plastic caps to be attached to the screw head. The plastic caps have a small stud that fits into the hole in the screw.

[Cooler]

The site says that they have experts available if I call.  I  think I will call.

Thanks for the replies.

Cooler

[Stwood_]

Yes get the bits that go with the screws.

[rwe2156]

7mm for 3/4 material and 5mm for 5/8.

I buy all my confirmat from either McFeeleys or Woodworkers supply.

IME they are THE best screws for melamine particle board.

Definitely get the bits.

[Cooler]

7mm for 3/4 material and 5mm for 5/8.

I buy all my confirmat from either McFeeleys or Woodworkers supply.

IME they are THE best screws for melamine particle board.

Definitely get the bits.

I'm going to use it on plywood.

I can't compare the prices.  McFeely's prices by the 100 pieces and AH Turf prices by the 50 pound box.

[KLaz]

I'm going to use it on plywood.

I can't compare the prices.  McFeely's prices by the 100 pieces and AH Turf prices by the 50 pound box.

You must use the step drill.  Especially on plywood.  You'll blow it apart if you don't.

Honestly, a #8 screw will work just fine with plywood.  My go to fastener for plywood is #8 x 1 3/4" with a #17 tip.

[Cooler]

You must use the step drill.  Especially on plywood.  You'll blow it apart if you don't.

Honestly, a #8 screw will work just fine with plywood.  My go to fastener for plywood is #8 x 1 3/4" with a #17 tip.

Are you talking about this one:

https://www.mcfeelys.com/screw-fastener-...-1000.html

Or this one:

https://www.mcfeelys.com/screw-fastener-...8yge0.html

[KLaz]

Are you talking about this one:

https://www.mcfeelys.com/screw-fastener-...-1000.html

Or this one:

https://www.mcfeelys.com/screw-fastener-...8yge0.html

This one.....

Screws