Collection: Screws - Thumb - Flat Key Head

Screws -> Thumb -> Flat Key Head

There are 10 products in the sub-categories of Screws - Thumb - Flat Key Head. Browse the Screws - Thumb - Flat Key Head products table. To narrow down the selection, please choose a sub-category from the links below.

Category Details

This category includes various types of thumb screws.
  • An expanded range may be available on special order. Please enquire.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Screws - Thumb - Flat Key Head category on the MBA Minibearings main store.
Thread Size (C) Thread Length (D) Overall Length (C) Head Diameter (A) Head Height (B) Indicative
Image
Thumb Screws - 3/16-24 BSW - 4.76mm - 19.05x30.4 mm Flat Key Head - Steel Screw
Thread Size (C)
3/16-24 BSW (4.76mm)
Thread Length (D)
19.05
mm
Overall Length (C)
30.40
mm
Head Diameter (A)
13.70
mm
Thumb Screws - 3/16-24 BSW - 4.76mm - 19.05x30.4 mm Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS048W-019-F-CS (Pack of 10)
12 units (120 pcs) Available Now | Item Discontinued - Up to 12 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.89 AUD
Regular price $10.28 AUD Sale price $2.89 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

12 units (120 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thread Size (C) Thread Length (D) Overall Length (C) Indicative
Image
Thumb Screws - 3/16-24 BSW - 4.76mm - 19.05x30.4 mm Flat Key Head - Steel Screw
Thread Size (C)
3/16-24 BSW (4.76mm)
Thread Length (D)
19.05
mm
Overall Length (C)
30.40
mm
Thumb Screws - 3/16-24 BSW - 4.76mm - 19.05x30.4 mm Flat Key Head - Steel
Material: Steel    Head Diameter (A): 13.70 mm    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS048W-019-F-CS (Pack of 10)
12 units (120 pcs) Available Now | Item Discontinued - Up to 12 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.89 AUD
Regular price $10.28 AUD Sale price $2.89 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

12 units (120 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M5 - 5x0.8mm - 12x23.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
12.00
mm
Overall Length (C)
23.70
mm
Head Diameter (A)
13.70
mm
Thumb Screws - M5 - 5x0.8mm - 12x23.7 mm Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS050M-012-F-CS (Pack of 10)
17 units (170 pcs) Available Now | Further orders can be expected around Mon, Oct 05, 2026
Regular price $2.41 AUD
Regular price $4.43 AUD Sale price $2.41 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 17 available can be backordered.
Thumb Screws - M5 - 5x0.8mm - 12x23.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
12.00
mm
Overall Length (C)
23.70
mm
Thumb Screws - M5 - 5x0.8mm - 12x23.7 mm Flat Key Head - Steel
Material: Steel    Head Diameter (A): 13.70 mm    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS050M-012-F-CS (Pack of 10)
17 units (170 pcs) Available Now | Further orders can be expected around Mon, Oct 05, 2026
Regular price $2.41 AUD
Regular price $4.43 AUD Sale price $2.41 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

17 units (170 pcs) Available Now. Backorder if more than 17.
Thumb Screws - M5 - 5x0.8mm - 16x27.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
16.00
mm
Overall Length (C)
27.70
mm
Head Diameter (A)
13.70
mm
Thumb Screws - M5 - 5x0.8mm - 16x27.7 mm Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS050M-016-F-CS (Pack of 5)
40 units (200 pcs) Available Now | Further orders can be expected around Mon, Oct 05, 2026
Regular price $2.05 AUD
Regular price $3.68 AUD Sale price $2.05 AUD
Priced, Stocked and Sold Per pack of 5
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 40 available can be backordered.
Thumb Screws - M5 - 5x0.8mm - 16x27.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
16.00
mm
Overall Length (C)
27.70
mm
Thumb Screws - M5 - 5x0.8mm - 16x27.7 mm Flat Key Head - Steel
Material: Steel    Head Diameter (A): 13.70 mm    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS050M-016-F-CS (Pack of 5)
40 units (200 pcs) Available Now | Further orders can be expected around Mon, Oct 05, 2026
Regular price $2.05 AUD
Regular price $3.68 AUD Sale price $2.05 AUD
Priced, Stocked and Sold Per pack of 5
Excludes GST and overseas Taxes & Duties
Quantity Required

40 units (200 pcs) Available Now. Backorder if more than 40.
Thumb Screws - M5 - 5x0.8mm - 20x31.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
20.00
mm
Overall Length (C)
31.70
mm
Head Diameter (A)
13.70
mm
Thumb Screws - M5 - 5x0.8mm - 20x31.7 mm Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS050M-020-F-CS (Pack of 10)
20 units (200 pcs) Available Now | Further orders can be expected around Mon, Oct 05, 2026
Regular price $4.05 AUD
Regular price $7.64 AUD Sale price $4.05 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 20 available can be backordered.
Thumb Screws - M5 - 5x0.8mm - 20x31.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
20.00
mm
Overall Length (C)
31.70
mm
Thumb Screws - M5 - 5x0.8mm - 20x31.7 mm Flat Key Head - Steel
Material: Steel    Head Diameter (A): 13.70 mm    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS050M-020-F-CS (Pack of 10)
20 units (200 pcs) Available Now | Further orders can be expected around Mon, Oct 05, 2026
Regular price $4.05 AUD
Regular price $7.64 AUD Sale price $4.05 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

20 units (200 pcs) Available Now. Backorder if more than 20.
Thumb Screws - M5 - 5x0.8mm - 25x36.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
25.00
mm
Overall Length (C)
36.70
mm
Head Diameter (A)
13.70
mm
Thumb Screws - M5 - 5x0.8mm - 25x36.7 mm Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS050M-025-F-CS (Pack of 20)
5 units (100 pcs) Available Now | Item Discontinued - Up to 5 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.49 AUD
Regular price $11.00 AUD Sale price $3.49 AUD
Priced, Stocked and Sold Per pack of 20
Excludes GST and overseas Taxes & Duties
Quantity Required

5 units (100 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M5 - 5x0.8mm - 25x36.7 mm Flat Key Head - Steel Screw
Thread Size (C)
M5 (5x0.8mm)
Thread Length (D)
25.00
mm
Overall Length (C)
36.70
mm
Thumb Screws - M5 - 5x0.8mm - 25x36.7 mm Flat Key Head - Steel
Material: Steel    Head Diameter (A): 13.70 mm    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS050M-025-F-CS (Pack of 20)
5 units (100 pcs) Available Now | Item Discontinued - Up to 5 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.49 AUD
Regular price $11.00 AUD Sale price $3.49 AUD
Priced, Stocked and Sold Per pack of 20
Excludes GST and overseas Taxes & Duties
Quantity Required

5 units (100 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M6 - 6x1mm - 20 - - Flat Key Head - Steel Screw
Thread Size (C)
M6 (6x1mm)
Thread Length (D)
20.00
mm
Thumb Screws - M6 - 6x1mm - 20  Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS060M-020-F-CS (Pack of 10)
18 units (180 pcs) Available Now | Item Discontinued - Up to 18 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.89 AUD
Regular price $10.33 AUD Sale price $2.89 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

18 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - M6 - 6x1mm - 20 - - Flat Key Head - Steel Screw
Thread Size (C)
M6 (6x1mm)
Thread Length (D)
20.00
mm
Thumb Screws - M6 - 6x1mm - 20  Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS060M-020-F-CS (Pack of 10)
18 units (180 pcs) Available Now | Item Discontinued - Up to 18 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $2.89 AUD
Regular price $10.33 AUD Sale price $2.89 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

18 units (180 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 1/4-20 BSW - 6.35mm - 25.4 - - Flat Key Head - Steel Screw
Thread Size (C)
1/4-20 BSW (6.35mm)
Thread Length (D)
25.40
mm
Thumb Screws - 1/4-20 BSW - 6.35mm - 25.4  Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS064W-025-F-CS (Pack of 10)
20 units (200 pcs) Available Now | Item Discontinued - Up to 20 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.56 AUD
Regular price $12.66 AUD Sale price $3.56 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

20 units (200 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 1/4-20 BSW - 6.35mm - 25.4 - - Flat Key Head - Steel Screw
Thread Size (C)
1/4-20 BSW (6.35mm)
Thread Length (D)
25.40
mm
Thumb Screws - 1/4-20 BSW - 6.35mm - 25.4  Flat Key Head - Steel
Material: Steel    Finish: Zinc Plated   
Category: Screws - Thumb - Flat Key Head - Standard
Deleted Item. Available while stocks last.
Part Number: THS064W-025-F-CS (Pack of 10)
20 units (200 pcs) Available Now | Item Discontinued - Up to 20 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $3.56 AUD
Regular price $12.66 AUD Sale price $3.56 AUD
Priced, Stocked and Sold Per pack of 10
Excludes GST and overseas Taxes & Duties
Quantity Required

20 units (200 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x41.28 mm Flat Key Head - Malleable Iron Screw
Thread Size (C)
1/4-20 UNC (6.35mm)
Thread Length (D)
25.40
mm
Overall Length (C)
41.28
mm
Head Diameter (A)
22.23
mm
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x41.28 mm Flat Key Head - Malleable Iron
Material: Malleable Iron    Finish: Tumbled   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS064C-025-F-MI (Each)
9 Available Now | Further orders can be expected around Fri, Aug 28, 2026
Regular price $14.32 AUD
Regular price Sale price $14.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 9 available can be backordered.
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x41.28 mm Flat Key Head - Malleable Iron Screw
Thread Size (C)
1/4-20 UNC (6.35mm)
Thread Length (D)
25.40
mm
Overall Length (C)
41.28
mm
Thumb Screws - 1/4-20 UNC - 6.35mm - 25.4x41.28 mm Flat Key Head - Malleable Iron
Material: Malleable Iron    Head Diameter (A): 22.23 mm    Finish: Tumbled   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS064C-025-F-MI (Each)
9 Available Now | Further orders can be expected around Fri, Aug 28, 2026
Regular price $14.32 AUD
Regular price Sale price $14.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

9 Available Now. Backorder if more than 9.
Thumb Screws - 5/16-18 UNC - 7.94mm - 25.4x42.86 mm Flat Key Head - Malleable Iron Screw
Thread Size (C)
5/16-18 UNC (7.94mm)
Thread Length (D)
25.40
mm
Overall Length (C)
42.86
mm
Head Diameter (A)
25.40
mm
Thumb Screws - 5/16-18 UNC - 7.94mm - 25.4x42.86 mm Flat Key Head - Malleable Iron
Material: Malleable Iron    Finish: Tumbled   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS079C-025-F-MI (Each)
8 Available Now | Item Discontinued - Up to 8 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $7.68 AUD
Regular price $16.65 AUD Sale price $7.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

8 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 5/16-18 UNC - 7.94mm - 25.4x42.86 mm Flat Key Head - Malleable Iron Screw
Thread Size (C)
5/16-18 UNC (7.94mm)
Thread Length (D)
25.40
mm
Overall Length (C)
42.86
mm
Thumb Screws - 5/16-18 UNC - 7.94mm - 25.4x42.86 mm Flat Key Head - Malleable Iron
Material: Malleable Iron    Head Diameter (A): 25.40 mm    Finish: Tumbled   
Category: Screws - Thumb - Flat Key Head - Standard
Part Number: THS079C-025-F-MI (Each)
8 Available Now | Item Discontinued - Up to 8 may be ordered online. No backorders. Please contact us if you need a larger quantity
Regular price $7.68 AUD
Regular price $16.65 AUD Sale price $7.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

8 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Thumb Screws - 3/8-16 UNC - 9.53mm - 25.4x47.63 mm Flat Key Head - Malleable Iron Screw
Thread Size (C)
3/8-16 UNC (9.53mm)
Thread Length (D)
25.40
mm
Overall Length (C)
47.63
mm
Head Diameter (A)
31.75
mm
Head Height (B)
22.23
mm
Thumb Screws - 3/8-16 UNC - 9.53mm - 25.4x47.63 mm Flat Key Head - Malleable Iron
Material: Malleable Iron    Finish: Tumbled    Washer Diameter (E): 15.88 mm   
Category: Screws - Thumb - Flat Key Head - Washer Face
Part Number: THS095C-025-F-CS-WF (Each)
10 Available Now | Further orders can be expected around Fri, Aug 28, 2026
Regular price $13.50 AUD
Regular price $16.20 AUD Sale price $13.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 10 available can be backordered.
Thumb Screws - 3/8-16 UNC - 9.53mm - 25.4x47.63 mm Flat Key Head - Malleable Iron Screw
Thread Size (C)
3/8-16 UNC (9.53mm)
Thread Length (D)
25.40
mm
Overall Length (C)
47.63
mm
Thumb Screws - 3/8-16 UNC - 9.53mm - 25.4x47.63 mm Flat Key Head - Malleable Iron
Material: Malleable Iron    Head Diameter (A): 31.75 mm    Head Height (B): 22.23 mm    Finish: Tumbled    Washer Diameter (E): 15.88 mm   
Category: Screws - Thumb - Flat Key Head - Washer Face
Part Number: THS095C-025-F-CS-WF (Each)
10 Available Now | Further orders can be expected around Fri, Aug 28, 2026
Regular price $13.50 AUD
Regular price $16.20 AUD Sale price $13.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

10 Available Now. Backorder if more than 10.