مسمار صلب خيط 5/16-24 بوصة 3 بوصة (J40493) أمريكي سمك 3/4 H&L

Swapped these onto my angle grinder and the hook-and-loop backing holds the paper way tighter than the adhesive discs I was using before. The 3/4 inch thickness keeps the pad from flexing when I really lean into it on flat stock. Threads spun on clean with no wobble.

The 5/16"-24 threaded shank screwed right into my die grinder without any wobble, which was my main worry. The hook-and-loop backing holds the disc tight but still peels off easy when I swap grits. Yellow face makes it easy to spot when it's worn down too.

Swapped these onto my angle grinder and the hook-and-loop backing grabs the paper so tight I don't have to worry about it flying off mid-pass. The 3/4 inch thickness keeps the disc flat against the work instead of flexing, which made a big difference on the curved edges I was sanding.