M20-2.5 X 100mm 六角頭螺絲 | 等級10.9 鋼 原色 | 部分螺紋 (20顆/包)

Took these to the shop to bolt down a jig frame and the 100mm length with partial threading gave just the grip I needed without bottoming out. The 10.9 steel feels substantial in hand, and a 19mm socket seated on the hex head with zero slop. Straight out of the bag they're clean and ready to torque.

These bolts have a solid, hefty feel that you just don't get from cheaper hardware, and the hex head grips a socket perfectly without any wobble. Replaced the fasteners on a heavy assembly table and they torqued down cleanly with no stripped threads. The 100mm length was just right for the job.

The partial threading on these M20 bolts made it much easier to get them started in a tight engine mount bracket. They torqued down nicely with no stripping or deformation.