M10 X 18mm 平點內六角止付螺絲 | 合金鋼 (250 / 包)

The hex socket drive really grabbed these tightly with my wrench, which made tightening in a cramped bracket area effortless. The alloy steel feels solid and durable, and the flat point seated flush without any wobble. Exactly what I needed for this assembly job.

These hex set screws fit perfectly for locking a sprocket in place on a shaft. The hex drive made it easy to get them tight with an Allen key, and the flat point grips nicely without marring the surface. Exactly what I needed for a solid, vibration-resistant setup.

The hex socket drive made tightening them in a cramped spot way easier than I expected, and the flat point seated cleanly without walking off the surface. Took four stars only because the 250-count box is heavier than it looks, which threw me off for a second.