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Thumb nuts offer a unique and finished look that allow for a nut to be tightened without tools. Lyn-Tron's thumb nuts are offered in all common female threads and in both the round knurled thumb nuts and hex style thumb nuts. Thumb nuts can be used to secure electrical wiring in electrical components or to temporarily fasten parts that need adjustments, changing, or removing frequently. The round shape provide a nice finished look. Base metal is yellow, but many plating options are available when different colors are required.

thumb-nut_large
Unit of Measure
1 

Item #

Material

Head Diameter

Female Thread

Head Length

OD

Washer Dia

OAL

Washer Length

Part Description

BR5560-00 N/A Brass N/A 6 mm N/A M2.5 x 0.45 N/A 3 mm N/A 6 mm N/A 5 mm N/A 6 mm N/A 3 mm N/A M2.5X0.45 Female Thread, Brass Metric Round Thumb Nut
BR5561-00 N/A Brass N/A 8 mm N/A M3 x 0.5 N/A 3 mm N/A 8 mm N/A 6 mm N/A 6 mm N/A 3 mm N/A M3X0.5 Female Thread, Brass Metric Round Thumb Nut
BR5562-00 N/A Brass N/A 10 mm N/A M3.5 x 0.6 N/A 3 mm N/A 10 mm N/A 9 mm N/A 7 mm N/A 4 mm N/A M3.5X0.6 Female Thread, Brass Metric Round Thumb Nut
BR5563-00 N/A Brass N/A 10 mm N/A M4 x 0.7 N/A 3 mm N/A 10 mm N/A 9 mm N/A 7 mm N/A 4 mm N/A M4X0.7 Female Thread, Brass Metric Round Thumb Nut
BR5564-00 N/A Brass N/A 13 mm N/A M5 x 0.8 N/A 4 mm N/A 13 mm N/A 11 mm N/A 9 mm N/A 5 mm N/A M5X0.8 Female Thread, Brass Metric Round Thumb Nut
BR5565-00 N/A Brass N/A 13 mm N/A M6 X 1 N/A 4 mm N/A 13 mm N/A 12 mm N/A 9 mm N/A 5 mm N/A M6X1 Female Thread, Brass Metric Round Thumb Nut
BR5566-00 N/A Brass N/A 19 mm N/A M8 x 1.25 N/A 6 mm N/A 19 mm N/A 16 mm N/A 12 mm N/A 6 mm N/A M8X1.25 Female Thread, Brass Metric Round Thumb Nut
SS5560-00 N/A Stainless Steel N/A 6 mm N/A M2.5 x 0.45 N/A 3 mm N/A 6 mm N/A 5 mm N/A 6 mm N/A 3 mm N/A M2.5X0.45 Female Thread, Stainless Steel Metric Round Thumb Nut
SS5561-00 N/A Stainless Steel N/A 8 mm N/A M3 x 0.5 N/A 3 mm N/A 8 mm N/A 6 mm N/A 6 mm N/A 3 mm N/A M3X0.5 Female Thread, Stainless Steel Metric Round Thumb Nut
SS5562-00 N/A Stainless Steel N/A 10 mm N/A M3.5 x 0.6 N/A 3 mm N/A 10 mm N/A 9 mm N/A 7 mm N/A 4 mm N/A M3.5X0.6 Female Thread, Stainless Steel Metric Round Thumb Nut
SS5563-00 N/A Stainless Steel N/A 10 mm N/A M4 x 0.7 N/A 3 mm N/A 10 mm N/A 9 mm N/A 7 mm N/A 4 mm N/A M4X0.7 Female Thread, Stainless Steel Metric Round Thumb Nut
SS5564-00 N/A Stainless Steel N/A 13 mm N/A M5 x 0.8 N/A 4 mm N/A 13 mm N/A 11 mm N/A 9 mm N/A 5 mm N/A M5X0.8 Female Thread, Stainless Steel Metric Round Thumb Nut
SS5565-00 N/A Stainless Steel N/A 13 mm N/A M6 X 1 N/A 4 mm N/A 13 mm N/A 12 mm N/A 9 mm N/A 5 mm N/A M6X1 Female Thread, Stainless Steel Metric Round Thumb Nut
SS5566-00 N/A Stainless Steel N/A 19 mm N/A M8 x 1.25 N/A 6 mm N/A 19 mm N/A 16 mm N/A 12 mm N/A 6 mm N/A M8X1.25 Female Thread, Stainless Steel Metric Round Thumb Nut
ST5560-00 N/A Steel N/A 6 mm N/A M2.5 x 0.45 N/A 3 mm N/A 6 mm N/A 5 mm N/A 6 mm N/A 3 mm N/A M2.5X0.45 Female Thread, Steel Metric Round Thumb Nut
ST5561-00 N/A Steel N/A 8 mm N/A M3 x 0.5 N/A 3 mm N/A 8 mm N/A 6 mm N/A 6 mm N/A 3 mm N/A M3X0.5 Female Thread, Steel Metric Round Thumb Nut
ST5562-00 N/A Steel N/A 10 mm N/A M3.5 x 0.6 N/A 3 mm N/A 10 mm N/A 9 mm N/A 7 mm N/A 4 mm N/A M3.5X0.6 Female Thread, Steel Metric Round Thumb Nut
ST5563-00 N/A Steel N/A 10 mm N/A M4 x 0.7 N/A 3 mm N/A 10 mm N/A 9 mm N/A 7 mm N/A 4 mm N/A M4X0.7 Female Thread, Steel Metric Round Thumb Nut
ST5564-00 N/A Steel N/A 13 mm N/A M5 x 0.8 N/A 4 mm N/A 13 mm N/A 11 mm N/A 9 mm N/A 5 mm N/A M5X0.8 Female Thread, Steel Metric Round Thumb Nut
ST5565-00 N/A Steel N/A 13 mm N/A M6 X 1 N/A 4 mm N/A 13 mm N/A 12 mm N/A 9 mm N/A 5 mm N/A M6X1 Female Thread, Steel Metric Round Thumb Nut
ST5566-00 N/A Steel N/A 19 mm N/A M8 x 1.25 N/A 6 mm N/A 19 mm N/A 16 mm N/A 12 mm N/A 6 mm N/A M8X1.25 Female Thread, Steel Metric Round Thumb Nut
Unit of Measure
1