ATTENTION:  We will be closed for Summer shutdown starting Friday 6/30/23 returning Monday 7/10/23.


Thumbnuts are knobs fitted with female threaded aluminum inserts or machine tapped plastic threads. 

Try our new Extended Knurled, Tri-lobe and Machine Tapped Thumbnuts.

Available in both inch and metric. Thumbnuts are currently only available in black.

NOTE: 1/4-20, 1/4-28 and M6X1.0 Extended Knurled Thumbnuts with aluminum threaded inserts have a thread length of 0.256″/6.5mm.

Knurled Thumbnut Dimensions
Knurled Aluminum Thread
Rosette Nut Dimensions
Rosette Plastic Thread
Tri-Lobe Nut Dimensions
Tri-Lobe Aluminum Thread
Knurled Extended Thumbnut Insert Dimensions
Knurled Extended Aluminum Thread
Knurled Thumbnut PT Dimensions
Knurled Extended Plastic Thread
Ball Knob Plastic Thread

Due to the large number of combinations offered, narrow down the table results using the filters below.

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Questions? Call 1-800-775-5668

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