knurled knob / round / steel
K0140 | DIN 464
The K0140 series of high knurled thumb screws offer models made with two different materials: either stainless steel or free cutting steel. Screws made of stainless steel are made in accordance with DIN 464 industry standards, and have a natural finish. Free cutting steel screws, on the other hand, have a black oxide varnish.
Steel, black oxidised.
Stainless steel, bright.
* Threads with these lengths have no undercut at the shoulder.