Thumb Screw

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Thumb screws, also known as a knurled thumb screw, have heads that are a knurling trace that are easy to install. The thumb screw is suitable for use where a quick installation and uninstallation is necessary, such as household, military, telecommunications, electronics, commercial and other fields.

Clients can customize the thumb screw in following aspects：

Material
Size
Cross holes
Bores (Plain or Tapped)
Keyways
Studs (Threaded or Plain)
Configuration of the Stud

The thumb screw is usually made of the following material：

Brass, stainless steel, carbon steel, alloy steel, aluminum, aircraft, aluminum, etc.

Parameter

Metric Coarse Knurled Round Head Thumb Screw

d	dk	k
M1	5.5000	1.5000
M1.2	6.0000	1.5000
M1.4	7.0000	2.0000
M1.6	7.5000	2.0000
M2	9.0000	2.0000
M2.5	11.0000	2.5000
M3	12.0000	2.5000
M4	16.0000	3.5000
M5	20.0000	4.0000
M6	24.0000	5.0000
M8	30.0000	6.0000
M10	36.0000	8.0000