M4-0.7 x 20mm 機械螺絲 | 圓頭一字驅動 | 鋼 鍍鋅 (1,500 顆/包)

I’ve been through half the box already on shelving brackets and a workbench frame, and every single screw has seated cleanly without a single stripped slot. The zinc finish has held up fine in my slightly damp garage, which is more than I can say for the last batch I bought.

For a hundred bucks you get a whole box of these and they don't strip when you hit them with a power driver, which is rare for slotted heads. The zinc coat is holding up fine on my outdoor gate hinges after a few weeks of rain.

I was pleasantly surprised these M4 screws came with a consistent thread pitch so they threaded into the nut smoothly. The slotted drive fits my old manual screwdriver perfectly.