براغي رأس سداسي M10-1.25 × 170 مم | فولاذ عادي فئة 10.9 | ملولبة جزئياً (100 / عبوة)

Installed a full set of these on a jig frame over the weekend and the class 10.9 steel handled the torque without a hint of flex. The partial threading made alignment a lot easier than fully threaded bolts, and all 100 came out clean with no burrs on the hex heads.

The threading on these stops exactly where it should, so seating them against a shoulder was straightforward. The 10.9 hardness shows in how the hex corners haven't rounded off even torquing them properly. A solid hundred-pack that'll last me a while.

Installed these on a milling machine table and the 10.9 grade handled the torque without stripping. The partial threading made it easy to fasten with a washer and nut.