1/4-20 X 2" 尼龍杯形點內六角止付螺絲 | 合金鋼 (100個/包)

Perfect fit for jigging soft aluminum parts — the nylon pellet tip prevents marring while the hex socket gets good torque without stripping. Pack of 100 gives me plenty for the shop.

Used a few of these to secure a jig I'm building, and the hex socket drive made tightening them in a cramped spot way easier than I expected. The nylon pellet cup point seats flush without chipping the work surface.

I was worried the nylon pellet would strip during install, but it holds firm against the cup point tip even in tight corners. The hex socket drive makes these a breeze to adjust in cramped spots.