Need a solid connector for a project? This is a simple but super useful hardware piece. It's a carbon steel stud (sometimes called a threaded rod, but this one's under a foot long, so it's a stud). It's 110mm long total (that's about 4.33 inches). The cool thing is both ends are threaded equally - each end has 35mm (about 1.38 inches) of M10-1.5 metric threads. So you can screw one end into a tapped hole or nut, leave the smooth middle section as a spacer, and then screw the other end into another component. The black oxide finish gives it a dark look and offers mild corrosion resistance. Carbon steel means it's strong and good for general-purpose applications where you need a reliable fastener. Made in the USA. Comes in a handy pack of two. Great for DIY, machinery, automotive, or any assembly where you need a double-ended connector with a smooth shoulder.