The Dulaclamp is designed for wooden templates. The bolt is held secure by the screws that are drilled in from the top. The bottom of the template could be set right at grade. The Dulaclip works like a traditional 2 nut setup. You will need 2 Dulaclips per bolt. The Dulaclips can also be used with wooded templates.

Drill the hole 1/4" larger than the bolt diameter

Yes they are designed to be reusable.

Yes, screws are included for each Dulaclamp.

Absolutely. Custom sizes (including metric) available upon request.

Like any new product, there is a slight learning curve. We have a tutorial video that shows the most efficient ways to use them.