Collection: Knobs - Thumb - Male With Cap Screw

Knobs (With Images)

Thumb

10 Products in this selection

Four types and four colours.
Complete with high tensile alloy steel screw.
If stainless steel screws required please order cap screws separately and knobs without screw.

Small Parts & Bearings

Additional resources:
Knobs PDF Quick Guide by Thread Size
Thumb Screws and Nuts PDF Quick Guide
Cap Screws

A more comprehensive listing may be found on the MBA Minibearings main store at Knobs - Thumb - Male With Cap Screw.

Thread Size	Head Diameter (A)	Screw Length	Colour	Style
Thread Size 4-40 UNC (2.85mm)	Head Diameter (A) 7.94 mm _{(0.313 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Black	Style Knurled
Material: Plastic with Insert
Part Number: KM029C-008-0635-KNU-B Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic with Insert 1 Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per Each
Thread Size	Head Diameter (A)	Screw Length	Colour	Indicative Image
Thread Size 4-40 UNC (2.85mm)	Head Diameter (A) 7.94 mm _{(0.313 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Black
Material: Plastic with Insert Style: Knurled
Part Number: KM029C-008-0635-KNU-B Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic with Insert 1 Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per Each
KM029C-008-0635-KNU-B --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic with Insert Sale KM029C-008-0635-KNU-B --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic with Insert Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per 1 Available Now Sale
Thread Size 4-40 UNC (2.85mm)	Head Diameter (A) 7.94 mm _{(0.313 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Grey	Style Knurled
Material: Plastic
Part Number: KM029C-008-0635-KNU-G (2 Pcs) Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic 1 pack (2 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $1.00 AUD Regular price ~~$1.90 AUD~~ Sale price $1.00 AUD Unit price per Per 2
Thread Size 4-40 UNC (2.85mm)	Head Diameter (A) 7.94 mm _{(0.313 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Grey
Material: Plastic Style: Knurled
Part Number: KM029C-008-0635-KNU-G (2 Pcs) Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic 1 pack (2 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $1.00 AUD Regular price ~~$1.90 AUD~~ Sale price $1.00 AUD Unit price per Per 2
KM029C-008-0635-KNU-G (2 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic Sale KM029C-008-0635-KNU-G (2 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic Regular price $1.00 AUD Regular price ~~$1.90 AUD~~ Sale price $1.00 AUD Unit price per 1 Available Now Sale
Thread Size 4-40 UNC (2.85mm)	Head Diameter (A) 7.94 mm _{(0.313 in.)}	Screw Length 12.7 mm _{(0.5 in.)}	Colour Black	Style Knurled
Material: Plastic with Insert
Part Number: KM029C-008-1270-KNU-B (4 Pcs) Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x12.7 mm - Plastic with Insert 1 pack (4 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.00 AUD Regular price ~~$3.80 AUD~~ Sale price $2.00 AUD Unit price per Per 4
Thread Size 4-40 UNC (2.85mm)	Head Diameter (A) 7.94 mm _{(0.313 in.)}	Screw Length 12.7 mm _{(0.5 in.)}	Colour Black
Material: Plastic with Insert Style: Knurled
Part Number: KM029C-008-1270-KNU-B (4 Pcs) Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x12.7 mm - Plastic with Insert 1 pack (4 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.00 AUD Regular price ~~$3.80 AUD~~ Sale price $2.00 AUD Unit price per Per 4
KM029C-008-1270-KNU-B (4 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x12.7 mm - Plastic with Insert Sale KM029C-008-1270-KNU-B (4 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x12.7 mm - Plastic with Insert Regular price $2.00 AUD Regular price ~~$3.80 AUD~~ Sale price $2.00 AUD Unit price per 1 Available Now Sale
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Black	Style Knurled
Material: Plastic with Insert
Part Number: KM035C-010-0635-KNU-B (9 Pcs) Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert 1 pack (9 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $4.50 AUD Regular price ~~$8.55 AUD~~ Sale price $4.50 AUD Unit price per Per 9
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Black
Material: Plastic with Insert Style: Knurled
Part Number: KM035C-010-0635-KNU-B (9 Pcs) Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert 1 pack (9 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $4.50 AUD Regular price ~~$8.55 AUD~~ Sale price $4.50 AUD Unit price per Per 9
KM035C-010-0635-KNU-B (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert Sale KM035C-010-0635-KNU-B (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert Regular price $4.50 AUD Regular price ~~$8.55 AUD~~ Sale price $4.50 AUD Unit price per 1 Available Now Sale
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Red	Style Knurled
Material: Plastic with Insert
Part Number: KM035C-010-0635-KNU-R (9 Pcs) Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert 1 pack (9 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $4.50 AUD Regular price ~~$8.55 AUD~~ Sale price $4.50 AUD Unit price per Per 9
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 6.4 mm _{(0.252 in.)}	Colour Red
Material: Plastic with Insert Style: Knurled
Part Number: KM035C-010-0635-KNU-R (9 Pcs) Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert 1 pack (9 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $4.50 AUD Regular price ~~$8.55 AUD~~ Sale price $4.50 AUD Unit price per Per 9
KM035C-010-0635-KNU-R (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert Sale KM035C-010-0635-KNU-R (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert Regular price $4.50 AUD Regular price ~~$8.55 AUD~~ Sale price $4.50 AUD Unit price per 1 Available Now Sale
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 12.7 mm _{(0.5 in.)}	Colour Black	Style Knurled
Material: Plastic with Insert
Part Number: KM035C-010-1270-KNU-B Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert 1 Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per Each
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 12.7 mm _{(0.5 in.)}	Colour Black
Material: Plastic with Insert Style: Knurled
Part Number: KM035C-010-1270-KNU-B Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert 1 Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per Each
KM035C-010-1270-KNU-B --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert Sale KM035C-010-1270-KNU-B --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per 1 Available Now Sale
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 12.7 mm _{(0.5 in.)}	Colour Red	Style Knurled
Material: Plastic with Insert
Part Number: KM035C-010-1270-KNU-R Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert 1 Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per Each
Thread Size 6-32 UNC (3.5mm)	Head Diameter (A) 9.53 mm _{(0.375 in.)}	Screw Length 12.7 mm _{(0.5 in.)}	Colour Red
Material: Plastic with Insert Style: Knurled
Part Number: KM035C-010-1270-KNU-R Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert 1 Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per Each
KM035C-010-1270-KNU-R --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert Sale KM035C-010-1270-KNU-R --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert Regular price $0.50 AUD Regular price ~~$95.00 AUD~~ Sale price $0.50 AUD Unit price per 1 Available Now Sale
Thread Size 1/4-20 UNC (6.35mm)	Head Diameter (A) 19.05 mm _{(0.75 in.)}	Screw Length 38.1 mm _{(1.5 in.)}	Colour Grey	Style Knurled
Material: Plastic
Part Number: KM064C-019-3810-KNU-G (6 Pcs) Thumb Knobs - 1/4-20 UNC - 6.35mm - 19.05x38.1 mm - Plastic 1 pack (6 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $3.00 AUD Regular price ~~$5.70 AUD~~ Sale price $3.00 AUD Unit price per Per 6
Thread Size 1/4-20 UNC (6.35mm)	Head Diameter (A) 19.05 mm _{(0.75 in.)}	Screw Length 38.1 mm _{(1.5 in.)}	Colour Grey
Material: Plastic Style: Knurled
Part Number: KM064C-019-3810-KNU-G (6 Pcs) Thumb Knobs - 1/4-20 UNC - 6.35mm - 19.05x38.1 mm - Plastic 1 pack (6 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $3.00 AUD Regular price ~~$5.70 AUD~~ Sale price $3.00 AUD Unit price per Per 6
KM064C-019-3810-KNU-G (6 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 19.05x38.1 mm - Plastic Sale KM064C-019-3810-KNU-G (6 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 19.05x38.1 mm - Plastic Regular price $3.00 AUD Regular price ~~$5.70 AUD~~ Sale price $3.00 AUD Unit price per 1 Available Now Sale
Thread Size 1/4-20 UNC (6.35mm)	Head Diameter (A) 25.40 mm _{(1 in.)}	Screw Length 38.1 mm _{(1.5 in.)}	Colour Grey	Style Knurled
Material: Plastic
Part Number: KM064C-025-3810-KNU-G (10 Pcs) Thumb Knobs - 1/4-20 UNC - 6.35mm - 25.4x38.1 mm - Plastic 1 pack (10 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $5.00 AUD Regular price ~~$9.50 AUD~~ Sale price $5.00 AUD Unit price per Per 10
Thread Size 1/4-20 UNC (6.35mm)	Head Diameter (A) 25.40 mm _{(1 in.)}	Screw Length 38.1 mm _{(1.5 in.)}	Colour Grey
Material: Plastic Style: Knurled
Part Number: KM064C-025-3810-KNU-G (10 Pcs) Thumb Knobs - 1/4-20 UNC - 6.35mm - 25.4x38.1 mm - Plastic 1 pack (10 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $5.00 AUD Regular price ~~$9.50 AUD~~ Sale price $5.00 AUD Unit price per Per 10
KM064C-025-3810-KNU-G (10 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 25.4x38.1 mm - Plastic Sale KM064C-025-3810-KNU-G (10 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 25.4x38.1 mm - Plastic Regular price $5.00 AUD Regular price ~~$9.50 AUD~~ Sale price $5.00 AUD Unit price per 1 Available Now Sale
Thread Size 1/4-20 UNC (6.35mm)	Head Diameter (A) 38.10 mm _{(1.5 in.)}	Screw Length 38.1 mm _{(1.5 in.)}	Colour Grey	Style Rosette
Material: Plastic
Part Number: KM064C-038-3810-ROS-G (5 Pcs) Thumb Knobs - 1/4-20 UNC - 6.35mm - 38.1x38.1 mm - Plastic 1 pack (5 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 5
Thread Size 1/4-20 UNC (6.35mm)	Head Diameter (A) 38.10 mm _{(1.5 in.)}	Screw Length 38.1 mm _{(1.5 in.)}	Colour Grey
Material: Plastic Style: Rosette
Part Number: KM064C-038-3810-ROS-G (5 Pcs) Thumb Knobs - 1/4-20 UNC - 6.35mm - 38.1x38.1 mm - Plastic 1 pack (5 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 5
KM064C-038-3810-ROS-G (5 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 38.1x38.1 mm - Plastic Sale KM064C-038-3810-ROS-G (5 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 38.1x38.1 mm - Plastic Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per 1 Available Now Sale

Collection: Knobs - Thumb - Male With Cap Screw

Filter:

KM029C-008-0635-KNU-B --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic with Insert

KM029C-008-0635-KNU-B --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic with Insert

KM029C-008-0635-KNU-G (2 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic

KM029C-008-0635-KNU-G (2 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x6.4 mm - Plastic

KM029C-008-1270-KNU-B (4 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x12.7 mm - Plastic with Insert

KM029C-008-1270-KNU-B (4 Pcs) --- Thumb Knobs - 4-40 UNC - 2.85mm - 7.94x12.7 mm - Plastic with Insert

KM035C-010-0635-KNU-B (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert

KM035C-010-0635-KNU-B (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert

KM035C-010-0635-KNU-R (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert

KM035C-010-0635-KNU-R (9 Pcs) --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x6.4 mm - Plastic with Insert

KM035C-010-1270-KNU-B --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert

KM035C-010-1270-KNU-B --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert

KM035C-010-1270-KNU-R --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert

KM035C-010-1270-KNU-R --- Thumb Knobs - 6-32 UNC - 3.5mm - 9.53x12.7 mm - Plastic with Insert

KM064C-019-3810-KNU-G (6 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 19.05x38.1 mm - Plastic

KM064C-019-3810-KNU-G (6 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 19.05x38.1 mm - Plastic

KM064C-025-3810-KNU-G (10 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 25.4x38.1 mm - Plastic

KM064C-025-3810-KNU-G (10 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 25.4x38.1 mm - Plastic

KM064C-038-3810-ROS-G (5 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 38.1x38.1 mm - Plastic

KM064C-038-3810-ROS-G (5 Pcs) --- Thumb Knobs - 1/4-20 UNC - 6.35mm - 38.1x38.1 mm - Plastic

Country/region

Country/region

Country/region

Collection: Knobs - Thumb - Male With Cap Screw

Filter

Filter

Subscribe to our emails