Yuhtech M8 x 25mm Thumb Screw, 10PCS Star Head Threaded Knurled Thumbscrew, Grip Knobs Clamping Screw for Machinery Latche

Well made and sold at a good price - these really are quite a surprise as I wasn't expecting such a well made product.I like to make my own jigs when doing various bits of woodwork and often I need to make something that is adjustable in such a way as to 'fix' the size in place. These thumb screws are ideal as they are M8 size (my favourite when using these) and the perfect length for most of my jigs.Being well made these should cope well with being used and often abused - dropped etc - for a long time, plus the cost is spot on. Recommended.

The thumb screws appear well made with easy to grip knob tops. The thread is well finished and smooth.The item's material is described as '【Material】The thumb screw is made of high-quality stainless steel and plastic, wear-resistant, high hardness, not easy to deform, and long service life.'. The thread however is very magnetic, ie will clamp to a magnet, thus is not stainless steel which is non-magnetic. Low grade stainless is very slightly magnetic however this is strongly magnetic. Thus I suspect is plated steel. In other parts of the listing is details the thread as 'Alloy Steel' which is a more accurate description.