Machine Turned Black Stainless Steel Knurled Thumb Screws
What are Knurled High Thumb Screws - DIN 464 ?
This type of fastener has a large round head and knurled edges. They're designed for for fast easy and accurate adjustment using just your hand, no tool is required to tighten or loosen the knurled thumb screw.
You can easily grip and adjust the tightness of the screw due to the knurled serrations on outside edge of the head. The Carbolts knurled thumb screws are of exceptional quality having being manufactured from a single piece of solid stainless steel adding to the strength of this particular type of fastener.