Collection: Screws - Thumb - Knurled - Brass

Screws (With Images)

Thumb

Knurled

8 Products in this selection

Brass knurled head thumb screws with zinc or black oxide protective coating.

Additional resources:
Thumb Screws and Nuts PDF Quick Guide
PDF Screws Catalogue
Nuts

A more concise listing may be found on the Smallparts store at Screws - Thumb - Knurled - Brass. Smallparts promote the most popular MBA products.

Thread Size (C)	Thread Length (Tl)	Overall Length (L)	Head Diameter (D)	Head Height (H)
Thread Size (C) 4-40 UNC (2.85mm)	Thread Length (Tl) 7.94 mm	Overall Length (L) 12.70 mm	Head Diameter (D) 7.94 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS028C-008-K-BZ Thumb Screws - 4-40 UNC -2.85mm- 7.94x12.7 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $17.77 AUD Regular price Sale price $17.77 AUD Unit price per Each
Thread Size (C)	Thread Length (Tl)	Overall Length (L)	Indicative Image
Thread Size (C) 4-40 UNC (2.85mm)	Thread Length (Tl) 7.94 mm	Overall Length (L) 12.70 mm
Material: Brass Head Diameter (D): 7.94 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS028C-008-K-BZ Thumb Screws - 4-40 UNC -2.85mm- 7.94x12.7 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $17.77 AUD Regular price Sale price $17.77 AUD Unit price per Each View the product page first if you are unsure.
THS028C-008-K-BZ --- Thumb Screws - 4-40 UNC -2.85mm- 7.94x12.7 mm - Brass THS028C-008-K-BZ --- Thumb Screws - 4-40 UNC -2.85mm- 7.94x12.7 mm - Brass Regular price $17.77 AUD Regular price Sale price $17.77 AUD Unit price per Out of stock! Backorder Now
Thread Size (C) 4-40 UNC (2.85mm)	Thread Length (Tl) 9.53 mm	Overall Length (L) 14.29 mm	Head Diameter (D) 7.94 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS028C-010-K-BZ Thumb Screws - 4-40 UNC -2.85mm- 9.53x14.29 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $18.23 AUD Regular price Sale price $18.23 AUD Unit price per Each
Thread Size (C) 4-40 UNC (2.85mm)	Thread Length (Tl) 9.53 mm	Overall Length (L) 14.29 mm
Material: Brass Head Diameter (D): 7.94 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS028C-010-K-BZ Thumb Screws - 4-40 UNC -2.85mm- 9.53x14.29 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $18.23 AUD Regular price Sale price $18.23 AUD Unit price per Each View the product page first if you are unsure.
THS028C-010-K-BZ --- Thumb Screws - 4-40 UNC -2.85mm- 9.53x14.29 mm - Brass THS028C-010-K-BZ --- Thumb Screws - 4-40 UNC -2.85mm- 9.53x14.29 mm - Brass Regular price $18.23 AUD Regular price Sale price $18.23 AUD Unit price per Out of stock! Backorder Now
Thread Size (C) 4-40 UNC (2.85mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm	Head Diameter (D) 7.94 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS028C-013-K-BZ Thumb Screws - 4-40 UNC -2.85mm- 12.7x17.46 mm - Brass 1 Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $9.00 AUD Regular price ~~$17.10 AUD~~ Sale price $9.00 AUD Unit price per Each
Thread Size (C) 4-40 UNC (2.85mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm
Material: Brass Head Diameter (D): 7.94 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS028C-013-K-BZ Thumb Screws - 4-40 UNC -2.85mm- 12.7x17.46 mm - Brass 1 Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $9.00 AUD Regular price ~~$17.10 AUD~~ Sale price $9.00 AUD Unit price per Each
THS028C-013-K-BZ --- Thumb Screws - 4-40 UNC -2.85mm- 12.7x17.46 mm - Brass Sale THS028C-013-K-BZ --- Thumb Screws - 4-40 UNC -2.85mm- 12.7x17.46 mm - Brass Regular price $9.00 AUD Regular price ~~$17.10 AUD~~ Sale price $9.00 AUD Unit price per 1 Available Now Sale
Thread Size (C) 6-32 UNC (3.5mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm	Head Diameter (D) 7.94 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS035C-013-K-BZ Thumb Screws - 6-32 UNC -3.5mm- 12.7x17.46 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $19.14 AUD Regular price Sale price $19.14 AUD Unit price per Each
Thread Size (C) 6-32 UNC (3.5mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm
Material: Brass Head Diameter (D): 7.94 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS035C-013-K-BZ Thumb Screws - 6-32 UNC -3.5mm- 12.7x17.46 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $19.14 AUD Regular price Sale price $19.14 AUD Unit price per Each View the product page first if you are unsure.
THS035C-013-K-BZ --- Thumb Screws - 6-32 UNC -3.5mm- 12.7x17.46 mm - Brass THS035C-013-K-BZ --- Thumb Screws - 6-32 UNC -3.5mm- 12.7x17.46 mm - Brass Regular price $19.14 AUD Regular price Sale price $19.14 AUD Unit price per Out of stock! Backorder Now
Thread Size (C) 8-32 UNC (4.17mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm	Head Diameter (D) 9.53 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS042C-013-K-BZ Thumb Screws - 8-32 UNC -4.17mm- 12.7x17.46 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $21.77 AUD Regular price Sale price $21.77 AUD Unit price per Each
Thread Size (C) 8-32 UNC (4.17mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm
Material: Brass Head Diameter (D): 9.53 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS042C-013-K-BZ Thumb Screws - 8-32 UNC -4.17mm- 12.7x17.46 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $21.77 AUD Regular price Sale price $21.77 AUD Unit price per Each View the product page first if you are unsure.
THS042C-013-K-BZ --- Thumb Screws - 8-32 UNC -4.17mm- 12.7x17.46 mm - Brass THS042C-013-K-BZ --- Thumb Screws - 8-32 UNC -4.17mm- 12.7x17.46 mm - Brass Regular price $21.77 AUD Regular price Sale price $21.77 AUD Unit price per Out of stock! Backorder Now
Thread Size (C) 10-32 UNF (4.76mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm	Head Diameter (D) 11.11 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS048F-013-K-BZ Thumb Screws - 10-32 UNF -4.76mm- 12.7x17.46 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $22.86 AUD Regular price Sale price $22.86 AUD Unit price per Each
Thread Size (C) 10-32 UNF (4.76mm)	Thread Length (Tl) 12.70 mm	Overall Length (L) 17.46 mm
Material: Brass Head Diameter (D): 11.11 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS048F-013-K-BZ Thumb Screws - 10-32 UNF -4.76mm- 12.7x17.46 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $22.86 AUD Regular price Sale price $22.86 AUD Unit price per Each View the product page first if you are unsure.
THS048F-013-K-BZ --- Thumb Screws - 10-32 UNF -4.76mm- 12.7x17.46 mm - Brass THS048F-013-K-BZ --- Thumb Screws - 10-32 UNF -4.76mm- 12.7x17.46 mm - Brass Regular price $22.86 AUD Regular price Sale price $22.86 AUD Unit price per Out of stock! Backorder Now
Thread Size (C) 10-32 UNF (4.76mm)	Thread Length (Tl) 15.88 mm	Overall Length (L) 20.64 mm	Head Diameter (D) 11.11 mm	Head Height (H) 4.76 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS048F-016-K-BZ Thumb Screws - 10-32 UNF -4.76mm- 15.88x20.64 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $23.86 AUD Regular price Sale price $23.86 AUD Unit price per Each
Thread Size (C) 10-32 UNF (4.76mm)	Thread Length (Tl) 15.88 mm	Overall Length (L) 20.64 mm
Material: Brass Head Diameter (D): 11.11 mm Head Height (H): 4.76 mm Finish: Zinc Chromate Plated
Part Number: THS048F-016-K-BZ Thumb Screws - 10-32 UNF -4.76mm- 15.88x20.64 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $23.86 AUD Regular price Sale price $23.86 AUD Unit price per Each View the product page first if you are unsure.
THS048F-016-K-BZ --- Thumb Screws - 10-32 UNF -4.76mm- 15.88x20.64 mm - Brass THS048F-016-K-BZ --- Thumb Screws - 10-32 UNF -4.76mm- 15.88x20.64 mm - Brass Regular price $23.86 AUD Regular price Sale price $23.86 AUD Unit price per Out of stock! Backorder Now
Thread Size (C) 1/4-20 UNC (6.35mm)	Thread Length (Tl) 19.05 mm	Overall Length (L) 25.40 mm	Head Diameter (D) 12.70 mm	Head Height (H) 6.35 mm
Material: Brass Finish: Zinc Chromate Plated
Part Number: THS064C-019-K-BZ Thumb Screws - 1/4-20 UNC -6.35mm- 19.05x25.4 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $24.77 AUD Regular price Sale price $24.77 AUD Unit price per Each
Thread Size (C) 1/4-20 UNC (6.35mm)	Thread Length (Tl) 19.05 mm	Overall Length (L) 25.40 mm
Material: Brass Head Diameter (D): 12.70 mm Head Height (H): 6.35 mm Finish: Zinc Chromate Plated
Part Number: THS064C-019-K-BZ Thumb Screws - 1/4-20 UNC -6.35mm- 19.05x25.4 mm - Brass Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jun 11, 2025 Regular price $24.77 AUD Regular price Sale price $24.77 AUD Unit price per Each View the product page first if you are unsure.
THS064C-019-K-BZ --- Thumb Screws - 1/4-20 UNC -6.35mm- 19.05x25.4 mm - Brass THS064C-019-K-BZ --- Thumb Screws - 1/4-20 UNC -6.35mm- 19.05x25.4 mm - Brass Regular price $24.77 AUD Regular price Sale price $24.77 AUD Unit price per Out of stock! Backorder Now