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About Nuts, Materials, and Finishes
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18-8 Stainless Steel Flanged Knurled-Head Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
| 0-80 | 5/32" | 1/8" | 7/32" | 1/4" | 1 | 000000000 | 00000 |
| 1-72 | 5/32" | 1/8" | 7/32" | 1/4" | 1 | 000000000 | 0000 |
| 2-56 | 3/16" | 1/8" | 1/4" | 1/4" | 1 | 000000000 | 0000 |
| 3-48 | 1/4" | 1/8" | 5/16" | 1/4" | 1 | 000000000 | 0000 |
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | 1 | 000000000 | 0000 |
| 5-40 | 1/4" | 1/8" | 5/16" | 1/4" | 1 | 000000000 | 0000 |
| 6-32 | 11/32" | 5/32" | 3/8" | 9/32" | 1 | 000000000 | 0000 |
| 8-32 | 3/8" | 5/32" | 7/16" | 9/32" | 1 | 000000000 | 0000 |
| 10-24 | 13/32" | 3/16" | 1/2" | 11/32" | 1 | 000000000 | 0000 |
| 10-32 | 13/32" | 3/16" | 1/2" | 11/32" | 1 | 000000000 | 0000 |
| 12-24 | 13/32" | 3/16" | 1/2" | 11/32" | 1 | 000000000 | 0000 |
| 1/4"-20 | 15/32" | 7/32" | 9/16" | 3/8" | 1 | 000000000 | 0000 |
| 1/4"-28 | 15/32" | 7/32" | 9/16" | 3/8" | 1 | 000000000 | 0000 |
| 5/16"-18 | 17/32" | 7/32" | 5/8" | 13/32" | 1 | 000000000 | 0000 |
| 5/16"-24 | 17/32" | 7/32" | 5/8" | 13/32" | 1 | 000000000 | 0000 |
| 3/8"-16 | 5/8" | 1/4" | 3/4" | 15/32" | 1 | 000000000 | 0000 |
| 3/8"-24 | 5/8" | 1/4" | 3/4" | 15/32" | 1 | 000000000 | 0000 |
| 7/16"-14 | 11/16" | 5/16" | 1" | 17/32" | 1 | 000000000 | 00000 |
| 7/16"-20 | 11/16" | 5/16" | 1" | 17/32" | 1 | 000000000 | 00000 |
| 1/2"-13 | 3/4" | 3/8" | 1" | 5/8" | 1 | 000000000 | 00000 |
Metric 18-8 Stainless Steel Flanged
Knurled-Head Thumb Nuts
Made from 18-8 stainless steel, these thumb nuts have good chemical resistance and may be mildly magnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
Passivated stainless steel nuts provide added protection against oxidation and corrosion.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | ||||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dia., mm | Ht., mm | Head Dia., mm | Ht., mm | Each | |
18-8 Stainless Steel | |||||||
| M1.6 | 0.35 | 4 | 4 | 6 | 6 | 000000000 | 00000 |
| M1.6 | 0.35 | 4 | 4 | 8 | 6 | 000000000 | 0000 |
| M2 | 0.4 | 4 | 2 | 6 | 4 | 000000000 | 0000 |
| M2 | 0.4 | 4 | 4 | 8 | 6 | 000000000 | 0000 |
| M2.5 | 0.45 | 4 | 5 | 12 | 7 | 000000000 | 0000 |
| M2.5 | 0.45 | 5 | 3 | 6 | 6 | 000000000 | 0000 |
| M2.5 | 0.45 | 6 | 3 | 8 | 6 | 000000000 | 0000 |
| M3 | 0.5 | 6 | 3 | 8 | 6 | 000000000 | 0000 |
| M3 | 0.5 | 6 | 5 | 16 | 8 | 000000000 | 0000 |
| M3.5 | 0.6 | 9 | 4 | 10 | 7 | 000000000 | 0000 |
| M4 | 0.7 | 8 | 6 | 12 | 10 | 000000000 | 0000 |
| M4 | 0.7 | 8 | 6 | 20 | 10 | 000000000 | 0000 |
| M4 | 0.7 | 9 | 4 | 10 | 7 | 000000000 | 0000 |
| M5 | 0.8 | 10 | 7.5 | 16 | 12 | 000000000 | 0000 |
| M5 | 0.8 | 10 | 7.5 | 24 | 12 | 000000000 | 0000 |
| M5 | 0.8 | 11 | 5 | 13 | 9 | 000000000 | 0000 |
| M6 | 1 | 12 | 5 | 13 | 9 | 000000000 | 0000 |
| M6 | 1 | 12 | 10 | 20 | 15 | 000000000 | 0000 |
| M6 | 1 | 12 | 10 | 24 | 15 | 000000000 | 00000 |
| M8 | 1.25 | 16 | 6 | 19 | 12 | 000000000 | 0000 |
| M8 | 1.25 | 16 | 12 | 24 | 18 | 000000000 | 00000 |
| M8 | 1.25 | 16 | 12 | 31.8 | 18 | 000000000 | 00000 |
| M10 | 1.5 | 20 | 15 | 26 | 23 | 000000000 | 00000 |
| M10 | 1.5 | 20 | 15 | 31.8 | 23 | 000000000 | 00000 |
| M12 | 1.75 | 24 | 20 | 31.8 | 30 | 000000000 | 00000 |
Black-Oxide 18-8 Stainless Steel | |||||||
| M2.5 | 0.45 | 5 | 3 | 6 | 6 | 000000000 | 0000 |
| M3 | 0.5 | 6 | 3 | 8 | 6 | 000000000 | 0000 |
| M3.5 | 0.6 | 9 | 4 | 10 | 7 | 000000000 | 0000 |
| M4 | 0.7 | 9 | 4 | 10 | 7 | 000000000 | 0000 |
| M5 | 0.8 | 11 | 5 | 13 | 9 | 000000000 | 0000 |
| M6 | 1 | 12 | 5 | 13 | 9 | 000000000 | 0000 |
| M8 | 1.25 | 16 | 6 | 19 | 12 | 000000000 | 0000 |
Passivated 18-8 Stainless Steel | |||||||
| M2.5 | 0.45 | 5 | 3 | 6 | 6 | 000000000 | 0000 |
| M3 | 0.5 | 6 | 3 | 8 | 6 | 000000000 | 0000 |
| M3.5 | 0.6 | 9 | 4 | 10 | 7 | 000000000 | 0000 |
| M4 | 0.7 | 9 | 4 | 10 | 7 | 000000000 | 0000 |
| M5 | 0.8 | 11 | 5 | 13 | 9 | 000000000 | 0000 |
| M6 | 1 | 12 | 5 | 13 | 9 | 000000000 | 0000 |
| M8 | 1.25 | 16 | 6 | 19 | 12 | 000000000 | 0000 |
Super-Corrosion-Resistant 316 Stainless
Steel Flanged Knurled-Head Thumb Nuts
These thumb nuts have excellent chemical resistance and can be used in saltwater environments. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
| 4-40 | 1/4" | 1/8" | 5/16" | 1/4" | 1 | 000000000 | 00000 |
| 6-32 | 11/32" | 5/32" | 3/8" | 9/32" | 1 | 000000000 | 0000 |
| 8-32 | 3/8" | 5/32" | 7/16" | 9/32" | 1 | 000000000 | 00000 |
| 10-24 | 13/32" | 3/16" | 1/2" | 11/32" | 1 | 000000000 | 00000 |
| 10-32 | 13/32" | 3/16" | 1/2" | 11/32" | 1 | 000000000 | 00000 |
| 1/4"-20 | 15/32" | 7/32" | 9/16" | 3/8" | 1 | 000000000 | 00000 |
| 5/16"-18 | 17/32" | 7/32" | 5/8" | 13/32" | 1 | 000000000 | 00000 |
| 3/8"-16 | 5/8" | 1/4" | 3/4" | 15/32" | 1 | 000000000 | 00000 |
| 1/2"-13 | 13/16" | 1/4" | 1" | 1/2" | 1 | 000000000 | 00000 |
Brass Flanged Knurled-Head Thumb Nuts
These thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
Brass | |||||||
| 0-80 | 5/32" | 1/8" | 7/32" | 1/4" | 1 | 000000000 | 00000 |
| 2-56 | 3/16" | 1/8" | 1/4" | 1/4" | 1 | 000000000 | 0000 |
| 4-40 | 5/16" | 9/64" | 3/8" | 1/4" | 25 | 000000000 | 0000 |
| 6-32 | 5/16" | 9/64" | 3/8" | 1/4" | 25 | 000000000 | 0000 |
| 8-32 | 3/8" | 3/16" | 7/16" | 5/16" | 25 | 000000000 | 0000 |
| 10-24 | 7/16" | 13/64" | 1/2" | 21/64" | 10 | 000000000 | 0000 |
| 10-32 | 7/16" | 13/64" | 1/2" | 21/64" | 10 | 000000000 | 0000 |
| 12-24 | 1/2" | 13/64" | 9/16" | 11/32" | 10 | 000000000 | 0000 |
| 1/4"-20 | 9/16" | 7/32" | 5/8" | 3/8" | 10 | 000000000 | 0000 |
| 5/16"-18 | 39/64" | 15/64" | 11/16" | 13/32" | 10 | 000000000 | 00000 |
Metric Brass Flanged Knurled-Head Thumb Nuts
Made from zinc-plated brass, these thumb nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. The flange distributes the load over a large area and reduces stress where the nut meets the material surface. A knurled head provides a slip-resistant grip for controlled adjustment.
For technical drawings and 3-D models, click on a part number.
Super-Corrosion-Resistant 316 Stainless
Steel Knurled-Head Thumb Nuts
These thumb nuts have excellent chemical resistance and can be used in saltwater environments. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||
| 4-40 | 1/4" | 1/4" | 1/2" | 3/8" | 1 | 000000000 | 00000 |
| 6-32 | 1/4" | 1/4" | 3/4" | 3/8" | 1 | 000000000 | 0000 |
| 8-32 | 5/16" | 1/4" | 1/2" | 3/8" | 1 | 000000000 | 0000 |
| 10-24 | 3/8" | 1/4" | 1/2" | 7/16" | 1 | 000000000 | 0000 |
| 10-32 | 3/8" | 1/4" | 1" | 7/16" | 1 | 000000000 | 0000 |
| 1/4"-20 | 1/2" | 1/4" | 3/4" | 1/2" | 1 | 000000000 | 0000 |
| 5/16"-18 | 1/2" | 3/8" | 1" | 5/8" | 1 | 000000000 | 0000 |
| 3/8"-16 | 5/8" | 1/2" | 1" | 3/4" | 1 | 000000000 | 00000 |
| 1/2"-13 | 3/4" | 5/8" | 1 1/8" | 15/16" | 1 | 000000000 | 00000 |
18-8 Stainless Steel Knurled-Head Thumb Nuts
These thumb nuts have good chemical resistance and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip.
For technical drawings and 3-D models, click on a part number.
Collar | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Dia. | Ht. | Head Dia. | Ht. | Threading | Thread Dp. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 0-80 | 7/32" | 3/16" | 3/8" | 1/4" | Fully Threaded | __ | 1 | 000000000 | 00000 |
| 1-72 | 7/32" | 3/16" | 3/8" | 1/4" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 2-56 | 7/32" | 3/16" | 3/8" | 1/4" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 3-48 | 1/4" | 1/4" | 1/2" | 3/8" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 4-40 | 1/4" | 1/4" | 1/2" | 3/8" | Partially Threaded | 1/4" | 1 | 000000000 | 0000 |
| 5-40 | 1/4" | 1/4" | 1/2" | 3/8" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 6-32 | 1/4" | 1/4" | 1/2" | 3/8" | Partially Threaded | 9/32" | 1 | 000000000 | 0000 |
| 6-32 | 1/4" | 1/4" | 3/4" | 3/8" | Partially Threaded | 9/32" | 1 | 000000000 | 0000 |
| 8-32 | 5/16" | 1/4" | 1/2" | 3/8" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 8-32 | 5/16" | 1/2" | 1/2" | 5/8" | Partially Threaded | 3/8" | 1 | 000000000 | 0000 |
| 10-24 | 3/8" | 1/4" | 1/2" | 7/16" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 10-32 | 3/8" | 1/4" | 1" | 7/16" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 12-24 | 1/2" | 1/4" | 3/4" | 1/2" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 1/4"-20 | 1/2" | 1/4" | 3/4" | 1/2" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 1/4"-20 | 1/2" | 3/4" | 1" | 1" | Partially Threaded | 1/2" | 1 | 000000000 | 0000 |
| 1/4"-28 | 1/2" | 1/4" | 3/4" | 1/2" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 5/16"-18 | 1/2" | 3/8" | 1" | 5/8" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 5/16"-24 | 1/2" | 3/8" | 1" | 5/8" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 3/8"-16 | 5/8" | 1/2" | 1" | 3/4" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 3/8"-24 | 5/8" | 1/2" | 1" | 3/4" | Fully Threaded | __ | 1 | 000000000 | 0000 |
| 7/16"-14 | 5/8" | 3/4" | 1 1/8" | 15/16" | Fully Threaded | __ | 1 | 000000000 | 00000 |
| 7/16"-20 | 5/8" | 3/4" | 1 1/8" | 15/16" | Fully Threaded | __ | 1 | 000000000 | 00000 |
| 1/2"-13 | 5/8" | 3/4" | 1 1/8" | 15/16" | Fully Threaded | __ | 1 | 000000000 | 00000 |
Metric 18-8 Stainless Steel Knurled-Head Thumb Nuts
Made from 18-8 stainless steel, these thumb nuts have good chemical resistance and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment and the collar raises the head to make it easy to grip.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dia., mm | Ht., mm | Head Dia., mm | Ht., mm | Specifications Met | Each | |
18-8 Stainless Steel | ||||||||
| M2 | 0.4 | 5 | 4 | 10 | 6 | __ | 000000000 | 00000 |
| M2.5 | 0.45 | 6 | 5 | 12 | 7.5 | __ | 000000000 | 0000 |
| M3 | 0.5 | 6 | 5 | 12 | 7.5 | DIN 466 | 000000000 | 0000 |
| M4 | 0.7 | 8 | 6 | 16 | 9.5 | DIN 466 | 000000000 | 0000 |
| M5 | 0.8 | 10 | 7.5 | 20 | 11.5 | DIN 466 | 000000000 | 0000 |
| M6 | 1 | 12 | 10 | 24 | 15 | DIN 466 | 000000000 | 0000 |
| M8 | 1.25 | 16 | 12 | 30 | 18 | DIN 466 | 000000000 | 0000 |
| M10 | 1.5 | 20 | 15 | 36 | 23 | DIN 466 | 000000000 | 00000 |
| M12 | 1.75 | 19 | 12 | 25.4 | 22 | __ | 000000000 | 0000 |
Hex-Head Thumb Nuts
Tighten these thumb nuts with a wrench for more torque while fastening. They have a flange that distributes the load over a large area and reduces stress where the nut meets the material surface. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.