We ordered 150 Shark Bite Fasteners. They require some strength to fasten, but they serve the purpose. In a high wind area, I would definitely place them only 12" apart.
Now, to the customer service issue. We ordered 3 50 packs. We got 1 sealed 50 pack and 1 zipper bag with 25 fasteners. A 2 piece fastener is 1 fastener. It seems someone saw the broken apart ones and assumed the ones still connected were actually 2. We called customer service repeatedly and couldn't get through. We also left a message which was NEVER followed up on. We can't sit on hold all day. . Even as I write this on 7-2-21, I've been on hold 21 minutes and was just transferred to voicemail to leave another message. They say they will call at 'their earliest convenience'. Apparently returning calls is not convenient, since I've been waiting a week already.
I called Monday , 6-28-21, and got Brian, who transferred me to customer service, where I was on hold. I hung up and called right back, and got Sarah. I explained the problem, and she said she is in sales, but wrote everything down and would make sure customer service got the message, she even took my phone number for them to call me back. I waited all week. Here it is Friday, we need our Shark Bite Fasteners for this weekend, which is never going to happen.
When I get a live person at a company, I don't care if they're in sales or in customer service. Anyone at the company should be able to help a customer after the sale.