1" Vapor Barrier Christmas Tree Fasteners for Crawlspace Moisture Barrier Poly Liners, Covers and Encapsulations - Parts & Accessories (White, 100 Pack)

The size was perfect, and the fastener is durable. I did think the price could be less. I used it to secure a 10 mil. vapor barrier to block in my crawlspace. I do recommend this fastener.

IMPORTANT! When you have someone put up a vapor barrier in your crawl space, make sure that they adhere the vapor barrier that goes up the foundation wall with the plastic support pins. These plastic pins are easy to push in but a small hole must be drilled into the cinder block to insert the pin. If you fail to do this, the sticky tape that adheres the vapor barrier to the wall will eventually fail (after the contractor is gone) and the barrier will slip and fail to do its job.

Tried other types of anchors for holding a vapor barrier to concrete, this is the only one that works.

They worked well. Easy to use. Installed on 2 inch insulation. Punched hole with a small shank Phillips screw driver. Hot a tight fit that holds real well.

I used these fasteners to hold the plastic cover over the insulation foam boards in my crawlspace. i did use adhesive to hold the cover but wanted the extra mechanical attachment and these just worked great.

Installed 100 of these little fasteners using a 1/4 inch drill masonry bit and hammer drill. Be careful though, they’re difficult to remove once installed

Unless you absolutely have to have white, do yourself a favor and search for automotive christmas tree fasteners. Same thing in black, but at about 1/6th the cost!

Did not receive 100 count, only 46 pieces came in bag. Otherwise good product.