Nuts - Thumb

Nuts -> Thumb

There are 9 products in the sub-categories of Nuts - Thumb. Browse the Nuts - Thumb products table. To narrow down the selection, please choose a sub-category from the links below.

Thumb Nuts - M4 -4x0.7mm- 12.5x6.54 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80

Nuts - Thumb - Basic

A selection of Basic Thumb Nuts. This is the main category in...

Nuts - Thumb - Basic

Thumb Nuts - 2-56 UNC -2.18mm- 6.4x3.18 mm - Stainless Steel 303 Similar to A2, 304, 18-8

Nuts - Thumb - Collared

This category includes various types of thumb nuts.

Nuts - Thumb - Collared

Category Details

This category includes various types of thumb nuts.
Nuts - Thumb

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Nuts - Thumb category on the MBA Minibearings main store.
Thread Size Overall Length Head Width (B) Head Diameter Shoulder Diameter Shoulder Height Indicative
Image
Thread Size
2-56 UNC (2.18mm)

Overall Length
6.4
mm

(Equiv. 0.252 in.)
Head Width (B)
3.18
mm

(Equiv. 0.125 in.)
Head Diameter
6.35
mm
Thumb Nuts - 2-56 UNC -2.18mm- 6.4x3.18 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)   
Category: Nuts - Thumb - Collared
Part Number: NT022C-THC-S3 (Each)
Thumb Nuts - 2-56 UNC - 2.18mm - 6.4x3.18 mm Collared - Stainless Steel 303 Similar to A2, 304, 18-8 Nut
Out of Stock | Backorder Now | Orders can be expected around Wed, Jan 14, 2026
$9.23 AUD
$9.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size Overall Length Head Width (B) Head Diameter Indicative
Image
Thread Size
2-56 UNC (2.18mm)

Overall Length
6.4
mm

(Equiv. 0.252 in.)
Head Width (B)
3.18
mm

(Equiv. 0.125 in.)
Head Diameter
6.35
mm
Thumb Nuts - 2-56 UNC -2.18mm- 6.4x3.18 mm - Stainless Steel 303 Similar to A2, 304, 18-8
Material: Stainless Steel 303 (Similar to A2, 304, 18-8)   
Category: Nuts - Thumb - Collared
Part Number: NT022C-THC-S3 (Each)
Thumb Nuts - 2-56 UNC - 2.18mm - 6.4x3.18 mm Collared - Stainless Steel 303 Similar to A2, 304, 18-8 Nut
Out of Stock | Backorder Now | Orders can be expected around Wed, Jan 14, 2026
$9.23 AUD
$9.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size
6-32 UNC (3.5mm)

Overall Length
7.1
mm

(Equiv. 0.28 in.)
Head Width (B)
3.18
mm

(Equiv. 0.125 in.)
Head Diameter
9.53
mm
Thumb Nuts - 6-32 UNC -3.5mm- 7.1x3.18 mm - Brass
Material: Brass   
Category: Nuts - Thumb - Collared
Deleted Item. Available while stocks last.
Part Number: NT035C-THC-BR (Each)
Thumb Nuts - 6-32 UNC - 3.5mm - 7.1x3.18 mm Collared - Brass Nut
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$3.79 AUD
$4.55 AUD $3.79 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size
6-32 UNC (3.5mm)

Overall Length
7.1
mm

(Equiv. 0.28 in.)
Head Width (B)
3.18
mm

(Equiv. 0.125 in.)
Head Diameter
9.53
mm
Thumb Nuts - 6-32 UNC -3.5mm- 7.1x3.18 mm - Brass
Material: Brass   
Category: Nuts - Thumb - Collared
Deleted Item. Available while stocks last.
Part Number: NT035C-THC-BR (Each)
Thumb Nuts - 6-32 UNC - 3.5mm - 7.1x3.18 mm Collared - Brass Nut
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$3.79 AUD
$4.55 AUD $3.79 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size
M4 (4x0.7mm)

Overall Length
12.5
mm

(Equiv. 0.492 in.)
Head Width (B)
6.54
mm

(Equiv. 0.257 in.)
Head Diameter
16.00
mm
Shoulder Diameter
8.00
mm
Shoulder Height
6.00
mm
Thumb Nuts - M4 -4x0.7mm- 12.5x6.54 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80   
Category: Nuts - Thumb - Basic
Part Number: NT040M-TH1606-S3 (Each)
Thumb Nuts - M4 - 4x0.7mm - 12.5x6.54 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
3 Available Now | Further orders can be expected around Wed, Jan 14, 2026
$17.50 AUD
$21.00 AUD $17.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
Thread Size
M4 (4x0.7mm)

Overall Length
12.5
mm

(Equiv. 0.492 in.)
Head Width (B)
6.54
mm

(Equiv. 0.257 in.)
Head Diameter
16.00
mm
Thumb Nuts - M4 -4x0.7mm- 12.5x6.54 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80    Shoulder Diameter: 8.00 mm    Shoulder Height: 6.00 mm   
Category: Nuts - Thumb - Basic
Part Number: NT040M-TH1606-S3 (Each)
Thumb Nuts - M4 - 4x0.7mm - 12.5x6.54 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
3 Available Now | Further orders can be expected around Wed, Jan 14, 2026
$17.50 AUD
$21.00 AUD $17.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
Thread Size
8-32 UNC (4.17mm)

Overall Length
9.5
mm

(Equiv. 0.374 in.)
Head Width (B)
3.18
mm

(Equiv. 0.125 in.)
Head Diameter
19.05
mm
Shoulder Diameter
7.94
mm
Shoulder Height
6.35
mm
Thumb Nuts - 8-32 UNC -4.17mm- 9.5x3.18 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80   
Category: Nuts - Thumb - Basic
Part Number: NT042C-TH1906-S3 (Each)
Thumb Nuts - 8-32 UNC - 4.17mm - 9.5x3.18 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
9 Available Now | Further orders can be expected around Mon, Dec 29, 2025
$8.50 AUD
$10.20 AUD $8.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

9 Available Now. Backorder if more than 9.
Thread Size
8-32 UNC (4.17mm)

Overall Length
9.5
mm

(Equiv. 0.374 in.)
Head Width (B)
3.18
mm

(Equiv. 0.125 in.)
Head Diameter
19.05
mm
Thumb Nuts - 8-32 UNC -4.17mm- 9.5x3.18 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80    Shoulder Diameter: 7.94 mm    Shoulder Height: 6.35 mm   
Category: Nuts - Thumb - Basic
Part Number: NT042C-TH1906-S3 (Each)
Thumb Nuts - 8-32 UNC - 4.17mm - 9.5x3.18 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
9 Available Now | Further orders can be expected around Mon, Dec 29, 2025
$8.50 AUD
$10.20 AUD $8.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

9 Available Now. Backorder if more than 9.
Thread Size
10-32 UNF (4.76mm)

Overall Length
11.1
mm

(Equiv. 0.437 in.)
Head Width (B)
4.76
mm

(Equiv. 0.187 in.)
Head Diameter
12.70
mm
Shoulder Diameter
9.53
mm
Shoulder Height
6.35
mm
Thumb Nuts - 10-32 UNF -4.76mm- 11.1x4.76 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80   
Category: Nuts - Thumb - Basic
Part Number: NT048F-TH1206-S3 (Each)
Thumb Nuts - 10-32 UNF - 4.76mm - 11.1x4.76 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
5 Available Now | Further orders can be expected around Mon, Dec 29, 2025
$10.59 AUD
$12.71 AUD $10.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Thread Size
10-32 UNF (4.76mm)

Overall Length
11.1
mm

(Equiv. 0.437 in.)
Head Width (B)
4.76
mm

(Equiv. 0.187 in.)
Head Diameter
12.70
mm
Thumb Nuts - 10-32 UNF -4.76mm- 11.1x4.76 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80    Shoulder Diameter: 9.53 mm    Shoulder Height: 6.35 mm   
Category: Nuts - Thumb - Basic
Part Number: NT048F-TH1206-S3 (Each)
Thumb Nuts - 10-32 UNF - 4.76mm - 11.1x4.76 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
5 Available Now | Further orders can be expected around Mon, Dec 29, 2025
$10.59 AUD
$12.71 AUD $10.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Thread Size
M5 (5x0.8mm)

Overall Length
11.5
mm

(Equiv. 0.453 in.)
Head Width (B)
4.00
mm

(Equiv. 0.157 in.)
Head Diameter
20.00
mm
Shoulder Diameter
10.00
mm
Shoulder Height
7.50
mm
Thumb Nuts - M5 -5x0.8mm- 11.5x4 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80   
Category: Nuts - Thumb - Basic
Part Number: NT050M-TH2007-S3 (Each)
Thumb Nuts - M5 - 5x0.8mm - 11.5x4 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
5 Available Now | Further orders can be expected around Wed, Jan 14, 2026
$17.95 AUD
$17.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Thread Size
M5 (5x0.8mm)

Overall Length
11.5
mm

(Equiv. 0.453 in.)
Head Width (B)
4.00
mm

(Equiv. 0.157 in.)
Head Diameter
20.00
mm
Thumb Nuts - M5 -5x0.8mm- 11.5x4 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80    Shoulder Diameter: 10.00 mm    Shoulder Height: 7.50 mm   
Category: Nuts - Thumb - Basic
Part Number: NT050M-TH2007-S3 (Each)
Thumb Nuts - M5 - 5x0.8mm - 11.5x4 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
5 Available Now | Further orders can be expected around Wed, Jan 14, 2026
$17.95 AUD
$17.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Thread Size
M6 (6x1mm)

Overall Length
15
mm

(Equiv. 0.591 in.)
Head Width (B)
5.00
mm

(Equiv. 0.197 in.)
Head Diameter
24.00
mm
Shoulder Diameter
12.00
mm
Shoulder Height
10.00
mm
Thumb Nuts - M6 -6x1mm- 15x5 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80   
Category: Nuts - Thumb - Basic
Part Number: NT060M-TH2410-S3 (Each)
Thumb Nuts - M6 - 6x1mm - 15x5 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
3 Available Now | Further orders can be expected around Wed, Jan 14, 2026
$17.23 AUD
$20.67 AUD $17.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
Thread Size
M6 (6x1mm)

Overall Length
15
mm

(Equiv. 0.591 in.)
Head Width (B)
5.00
mm

(Equiv. 0.197 in.)
Head Diameter
24.00
mm
Thumb Nuts - M6 -6x1mm- 15x5 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80    Shoulder Diameter: 12.00 mm    Shoulder Height: 10.00 mm   
Category: Nuts - Thumb - Basic
Part Number: NT060M-TH2410-S3 (Each)
Thumb Nuts - M6 - 6x1mm - 15x5 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
3 Available Now | Further orders can be expected around Wed, Jan 14, 2026
$17.23 AUD
$20.67 AUD $17.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
Thread Size
1/4-20 UNC (6.35mm)

Overall Length
9.5
mm

(Equiv. 0.374 in.)
Head Width (B)
3.97
mm

(Equiv. 0.156 in.)
Head Diameter
14.29
mm
Thumb Nuts - 1/4-20 UNC -6.35mm- 9.5x3.97 mm - Brass
Material: Brass   
Category: Nuts - Thumb - Collared
Part Number: NT064C-THC-BR (PK-111)
Thumb Nuts - 1/4-20 UNC - 6.35mm - 9.5x3.97 mm Collared - Brass Nut
Out of Stock | Backorder Now | Orders can be expected around Mon, Dec 29, 2025
$635.86 AUD
$635.86 AUD
Priced, Stocked and Sold Per 111 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size
1/4-20 UNC (6.35mm)

Overall Length
9.5
mm

(Equiv. 0.374 in.)
Head Width (B)
3.97
mm

(Equiv. 0.156 in.)
Head Diameter
14.29
mm
Thumb Nuts - 1/4-20 UNC -6.35mm- 9.5x3.97 mm - Brass
Material: Brass   
Category: Nuts - Thumb - Collared
Part Number: NT064C-THC-BR (PK-111)
Thumb Nuts - 1/4-20 UNC - 6.35mm - 9.5x3.97 mm Collared - Brass Nut
Out of Stock | Backorder Now | Orders can be expected around Mon, Dec 29, 2025
$635.86 AUD
$635.86 AUD
Priced, Stocked and Sold Per 111 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Thread Size
1/4-20 UNC (6.35mm)

Overall Length
19.1
mm

(Equiv. 0.752 in.)
Head Width (B)
6.35
mm

(Equiv. 0.25 in.)
Head Diameter
25.40
mm
Shoulder Diameter
12.70
mm
Shoulder Height
12.70
mm
Thumb Nuts - 1/4-20 UNC -6.35mm- 19.1x6.35 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80   
Category: Nuts - Thumb - Basic
Part Number: NT064C-TH2512-S3 (Each)
Thumb Nuts - 1/4-20 UNC - 6.35mm - 19.1x6.35 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
2 Available Now | Further orders can be expected around Mon, Dec 29, 2025
$22.14 AUD
$22.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Thread Size
1/4-20 UNC (6.35mm)

Overall Length
19.1
mm

(Equiv. 0.752 in.)
Head Width (B)
6.35
mm

(Equiv. 0.25 in.)
Head Diameter
25.40
mm
Thumb Nuts - 1/4-20 UNC -6.35mm- 19.1x6.35 mm - Stainless Steel 303/304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 303/304 (Similar to A2, 18-8) HRB80    Shoulder Diameter: 12.70 mm    Shoulder Height: 12.70 mm   
Category: Nuts - Thumb - Basic
Part Number: NT064C-TH2512-S3 (Each)
Thumb Nuts - 1/4-20 UNC - 6.35mm - 19.1x6.35 mm Basic - Stainless Steel 303/304 Similar to A2, 18-8 HRB80 Nut
2 Available Now | Further orders can be expected around Mon, Dec 29, 2025
$22.14 AUD
$22.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.