Thumb Screw FAQ
Thumb Screw Frequently Asked Questions
Question 1
What materials are thumb screws readily available in?
Answer
Most knurled thumb screws come in various materials to ensure they are suitable for many different applications and requirements. Black oxide steel, 303 stainless steel, zinc plated steel or brass. The material choice is made dependant on the climatic, aesthetic or material combination requirements.
Question 2
What are the different types of thumb screw and their accessories?
Answer
Knurled Thumb Screw DIN 464 – Knurled head with a shoulder and threaded pin. The shoulder allows for clearance for easy tightening or removal. The shoulder also lends itself to work as a pull knob or hanging point.
Thumb Screw DIN 653 – These screws do not have a shoulder and tighten flush to the workpiece leaving only the knurled element visible.
Flat Knurled Nut DIN 467 – Low profile nuts manufactured to match 464 and 653 thumb screws thread size and appearance. More that one can be used in conjunction with DIN 653 to form an adjustable clamping system.
Knurled Grip Nuts DIN 6303 – These nuts provide a larger thumb grip area and prevents a certain amount of thread protruding from the top of the nut under maximum tightening. These are also aesthetically designed to be used in many different consumer products.
Knurled Nut DIN 466 – These nuts have a shoulder to match DIN 464. These can make the application symmetrical if required. The shoulder allows for greater access and control.
