I would also peruse McMaster-Carr for parts that might work. They have an amazing selection of random hardware.
I would also peruse McMaster-Carr for parts that might work. They have an amazing selection of random hardware.
1.5 - 2 inches is a lot of velcro contact. Keep in mind every time you take something out of the safe you?ll be having to basically pull straight down to release the velcro and probably on several of them depending on what your going after and how much other stuff you have to move.
Personally, I?d be going for a 0.75 - 1 inch pad.
Also, as far as countersinking the washers, if you had access to a press you could use a ball bearing or maybe even one of the screws you plan on using and basically press your indent into the washers.
Try this....
Place flathead large screw pointing up on a hard surface (steel plate if you have it).
Place 1" washer over screw.
Center short piece of 1" black pipe centered over washer.
Put on safety glasses and work gloves.
Take all your aggressions out by wailing on the top of the pipe with the biggest mallet you have.
Also 'Belleville Spring Lock Washers' might work: https://www.mcmaster.com/conical-was...-lock-washers/