The Permanentech self-locking vibration-proof nut and bolt fastener has a unique nut that locks in at predetermined intervals along the notched bolt, removing the chance for vibration to loosen the ...

When the tool you need doesn’t exist, you have to make it yourself. Come to think of it, even if the tool exists, it’s often way more fun to make it yourself. The former situation, though, is one that ...

Grooving or recessing operations, sometimes also called necking operations, are often done on workpiece shoulders to ensure the correct fit for mating parts. When a thread is required to run the full ...