Small Parts 1024KWTF Steel Self-Drilling Screw, Zinc Plated Finish, Wafer Head, Star Drive, #3 Drill Point, #10-16 Thread Size, 1-1/2" Length (Pack of 50)

Worked fine after I predrilled oversize holes in the plywood deck.No breakage. Did have one (out of 21) that did not self tap. I used another screw to drill and tap the hole and replaced it with the dull screw.The waffer head and torx drive were what I wanted for this project.

When you need a self-tapping screw with a large head on it this is the way to go these work great would buy again

I used these on 14 gauge steel tube and about every third one of these had the tip break off, making it useless. I'm not a big metal guy, so maybe this is normal? When they worked, they worked really well! And if it weren't for the star drive, I probably would have thrown the whole bag in the trash! If you don't use a lot of self-tappers, or you need them for a lighter gauge sheet metal, these are fine, just buy more than you need!

I use these to hold down the plywood decking on my trailer. I like them because they go And nice and smooth so the head doesn’t stick up

Hex is smaller than I had hoped. Strips easily. Not what I had hoped.

I used these to install new 5/8" marine grade plywood to my snowmobile trailer. It uses a T20 bit. Worked great! My advice, pre-drill the wood only and install.

I was not happy with these. I used to fasten down new plywood onto my flatbed snowmobile trailer. About 50% of the screws' tips broke off when they hit the aluminum frame. Was able to get my job done, but wasted several. Hopefully they hold, the ones that didn't break. Do not get these if using in any metal of aluminum or harder.

great screw, used them to re-deck my snowmobile trailer, did a great job