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Thumb Nuts

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.

Selecting Thumb Nuts

The two types of thumb nuts allow for two different types of tightening of the nut. The round nut is knurled to allow for an easy grip by hand while the hex thumb provides the option for tightening by using a wrench. The material selection for our thumb nuts are:

  • Stainless Steel
  • Steel
  • Brass

In addition to offering thumb nuts in round and hex, Lyn-Tron carries a full line of thread types in both inch and metric. If you don’t see the thread size you need, feel free to contact us directly

Didn’t find what you need? Contact Us for your project specific requirements.

Lyn-Tron has been manufacturing electronic components and hardware items for over 50 years! All Lyn-Tron electronic hardware is made in the USA and held to the highest quality standards. Our custom hardware goes through the same quality standards so customers will always receive a product they can trust.

Contact us today if you have any questions about selecting thumb nuts for your products. We are open to discuss any custom designs or unique needs your project requires.

Contact Lyn-Tron Inc | Electronic Components Suppliers

M2.5x0.45 Thumb Nuts

6mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5560 Brass 6mm 3.0mm M2.5x0.45 5.0mm 3.0mm
  • Material: Brass
  • Head Diameter: 6mm
  • Head Length: 3.0mm
  • Female Thread: M2.5x0.45
  • Washer Diameter: 5.0mm
  • Washer Length: 3.0mm
BR5580 Brass 6mm 3.0mm M2.5x0.45 5.0mm 3.0mm
  • Material: Brass
  • Head Diameter: 6mm
  • Head Length: 3.0mm
  • Female Thread: M2.5x0.45
  • Washer Diameter: 5.0mm
  • Washer Length: 3.0mm

M3.0x0.5 Thumb Nuts

8mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5561 Brass 8mm 3.0mm M3.0x0.5 6.0mm 3.0mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 3.0mm
  • Female Thread: M3.0x0.5
  • Washer Diameter: 6.0mm
  • Washer Length: 3.0mm
BR5581 Brass 8mm 3.0mm M3.0x0.5 6.0mm 3.0mm
  • Material: Brass
  • Head Diameter: 8mm
  • Head Length: 3.0mm
  • Female Thread: M3.0x0.5
  • Washer Diameter: 6.0mm
  • Washer Length: 3.0mm

M3.5x0.6 Thumb Nuts

10mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5562 Brass 10mm 3.0mm M3.5x0.6 9.0mm 4.0mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 3.0mm
  • Female Thread: M3.5x0.6
  • Washer Diameter: 9.0mm
  • Washer Length: 4.0mm
BR5582 Brass 10mm 3.0mm M3.5x0.6 9.0mm 4.0mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 3.0mm
  • Female Thread: M3.5x0.6
  • Washer Diameter: 9.0mm
  • Washer Length: 4.0mm

M4.0x0.7 Thumb Nuts

10mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5563 Brass 10mm 3.0mm M4.0x0.7 9.0mm 4.0mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 3.0mm
  • Female Thread: M4.0x0.7
  • Washer Diameter: 9.0mm
  • Washer Length: 4.0mm
BR5583 Brass 10mm 3.0mm M4.0x0.7 9.0mm 4.0mm
  • Material: Brass
  • Head Diameter: 10mm
  • Head Length: 3.0mm
  • Female Thread: M4.0x0.7
  • Washer Diameter: 9.0mm
  • Washer Length: 4.0mm

M5.0x0.8 Thumb Nuts

13mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5564 Brass 13mm 4mm M5.0x0.8 11.0mm 5.0mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 4mm
  • Female Thread: M5.0x0.8
  • Washer Diameter: 11.0mm
  • Washer Length: 5.0mm
BR5584 Brass 13mm 4mm M5.0x0.8 11.0mm 5.0mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 4mm
  • Female Thread: M5.0x0.8
  • Washer Diameter: 11.0mm
  • Washer Length: 5.0mm

M6.0x1.0 Thumb Nuts

13mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5565 Brass 13mm 4mm M6.0x1.0 12.0mm 5.0mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 4mm
  • Female Thread: M6.0x1.0
  • Washer Diameter: 12.0mm
  • Washer Length: 5.0mm
BR5585 Brass 13mm 4mm M6.0x1.0 12.0mm 5.0mm
  • Material: Brass
  • Head Diameter: 13mm
  • Head Length: 4mm
  • Female Thread: M6.0x1.0
  • Washer Diameter: 12.0mm
  • Washer Length: 5.0mm

M8.0x1.25 Thumb Nuts

19.0mm

Part Number Material Head Diameter Head Length Female Thread Washer Diameter Washer Length Details
BR5566 Brass 19.0mm 6mm M8.0x1.25 16.0mm 6.0mm
  • Material: Brass
  • Head Diameter: 19.0mm
  • Head Length: 6mm
  • Female Thread: M8.0x1.25
  • Washer Diameter: 16.0mm
  • Washer Length: 6.0mm
BR5586 Brass 19.0mm 6mm M8.0x1.25 16.0mm 6.0mm
  • Material: Brass
  • Head Diameter: 19.0mm
  • Head Length: 6mm
  • Female Thread: M8.0x1.25
  • Washer Diameter: 16.0mm
  • Washer Length: 6.0mm