Best Cap Nuts Deals Online in the UK (25 Deals Found)

Last Updated - 20/03/2026 Sort By:

Best Choice
Nadinsta

New
Nadinsta 146pcs Acorn Thread Hex Cap Head Nuts Assortment Kit, Dome Cap Nuts, M3/M4/M5/M6/M8/M10/M12 Carbon Steel Acorn
【7 Different Sizes of Metric Acorn Thread Hex Cap】You will receive 50pcs M3, 40pcs M4, 20pcs M5, 20pcs M6, 10pcs M8, 4pc

£7.99
Best Value
GOWTX

New
210Pcs Black Plastic Dome Nut, 6 Sizes Bolt Protection Caps Cover, Dome Head Decorative Cap Nuts, Thread Bolt Cover Cap,
【Packaging Includes】This package contains 210 x Hex Head Bolt Covers, including 80 x M4, 60 x M5, 20 x M6, 10 x M8, 20 x

£6.99
New
HEX Dome Nuts A2 Stainless Steel ACORN DOMED CAP NUT M3 - M8 M10 M12 M14 M16 M20
M14 2.0mm 22mm. Ideal for automotive, machinery, furniture, and general-purpose applications. M16 2.0mm 24mm. M8 1.25mm

£99.89
BACSHBY

New
BACSHBY 10 Pcs M8 Dome Cap Nuts, Stainless Steel 304 Acorn Dome Head, DIN 1587 Thread Hex Cap Nuts for Industry, Furnitu
High Quality Material: Our dome nuts are made of durable stainless steel A2 V2A, known for its high strength, corrosion

£4.99
New
M3 M4 M5 M6 M8 M10 M12M14M16M18M20 Dome Nuts Brass Cap Hex Nut DIN1587 High Head
※ Standard: DIN1587. ※ Size: M3 M4 M5 M6 M8 M10 M12 M14 M16 M18 M20. ※ Model: Cap type hexagon nut. ※ Material: Brass. T

£1.90
YITYDaMai

New
165 Pcs Acorn Dome Cap Nuts, stainless steel Acorn Thread Hex Caps Head Nuts Assortment KitAcorn Decorative Hex Cap Nuts
Premium Material: Our assorted dome cap nuts are made of premium stainless steel material, which has high strength and g

£9.99
Generic

New
Premium Stainless Steel Fasteners Dome Nuts DIN1587 with Stainless Steel Finish and Hex Acorn Cap Nuts for M3,M4,M5,M6,M
⚙️[ DOME NUTS ] made of High quality Stainless Steel also known as a full nuts made of durable A4 stainless steel and to

£4.00
New
Black A2 Stainless Steel Hexagon Full Or Dome Cap Cover/Nyloc Nuts Metric Sizes
Material - A2 Stainless steel (For increased corrosion resistance). Colour - Black plated. M8mm 13mm 15mm 1.25. M6mm 10m

£342.54
JORREP

New
150 Pcs Acorn Dome Cap Nuts, 304 Stainless Steel Acorn Dome DIN 1587 Thread Hex for Motorcycle Bicycles Furniture Lighti
【EXCELLENT MATERIAL】 Acorn nuts are made of high-quality 304 stainless steel with have good corrosion resistance and sup

£8.59 £8.98
New
Plastic Nut & Bolt Cover Caps For Hexagon Nuts Bolts Black M5 M6 M8 M10 M12 M16
.

£87.35
Haosie

New
Haosie 70PCS Dome Acorn Cap Nut, Hex Cap Nut, M3/M4/M5/M6/M8/M10, Protecting Hex Screws Bolts (Black)
【Multi Models Available】Acorn nuts are available in M3, M4, M5, M6, M8 and M10 models. There are 70 acorn nuts in a box,

£6.89
Vifmy

New
Vifmy 304 Stainless Steel Acorn Nuts Assortment Kit(135PCS), M3 M4 M5 M6 M8 M10 M12 Metric Hex Acorn Cap Nuts Sets, Dome
【Acorn Nuts Size】Cap nuts are available in sizes:M3(40pcs),M4(35pcs),M5(25pcs),M6(20pcs),M8(8pcs),M10(4pcs)，M12(3pcs),13

£13.99
New
Black Stainless Steel Nuts Dome Wing Cap Nyloc Full Thin Flange M3 M4 M5 M6 M8
BLACK STAINLESS STEEL THIN NUTS. BLACK STAINLESS STEEL NUTS. BLACK STAINLESS STEEL FULL NUTS. Made From Beautiful Black

£100.00
QANCEN

New
QANCEN 10 Pcs M10 Dome Cap Nuts, Acorn Thread Hex Caps, 304 Stainless Steel DIN 1587 Hex Lock Nuts for Screws,Furniture,
High Quality Material:The dome nut cover is made of 304 stainless steel. Hexagonal dome nuts have a smooth surface with

£5.99
New
Dome Nuts Stainless Steel A2 M4 M5 M6 M8 M10 M12 Metric Acorn Nuts Domed Cap Nut
M8 x 1.25mm. M12 x 1.75mm. M10 x 1.5mm. M4 x 0.7mm. M6 x 1.0mm. M5 x 0.8mm. Material: Stainless steel (grade A2-70).

£66.05
DDHOMIN

New
100 PCS Stainless Steel Dome Cap Nuts, Hex Acorn Nut Kit, M3 M4 M5 M6 M8 Assorted Sizes
【High Quality】: These nut caps are made from 304 stainless steel, offering excellent rust resistance and effectively ext

£6.59
New
METRIC A2 STAINLESS STEEL FINISHING CAP NUTS COVER NUTS M5,6,8,10,12
Material - A2 Stainless steel. Type - DIN917 Hex cap nuts. 12mm 19mm 16mm 1.75. 10mm 16mm 14mm 1.5.

£252.00
New
Sleeve Nuts M5 M6 M8 M10 Flat Head Hexagon Socket Furniture Cap Yellow Zinc Blac
M8 (fit 8 mm bolts). M10 (fit 10 mm bolts). M6 (fit 6 mm bolts). M5 (fit 5 mm bolts). Versatile, can be used with joint

£4.01
New
M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 Black Plastic Dome Nut Cap Bolt Safety Cover
.

£99.99
New
Black Metric Hexagon Domed Cap Nuts Fit Screws Bolts M4 M5 M6 M8 M10 M12
M8 8mm 13mm 15mm. M4 4mm 7mm 8mm. M10 10mm 17mm 18mm. Black Zinc Flake. M6 6mm 10mm 12mm. BOLTS / SCREWS. HEXAGON HEAD B

£41.92
New
Black & White Plastic Dome Nut Cap Bolt Safety Cover M4 M5 M6 M8 M10 M12 M16 M20
M16 fit 24mm spanner size nuts & bolts. M8 fit 13mm spanner size nuts & bolts. M12 fit 19mm spanner size nuts & bolts. M

£61.96
New
M4 M5 M6 M8 M10 M12 M14 M16 M18 M20 White Plastic Dome Nut Protection Cap Covers
.

£99.99
New
M8 / 8mm A2 STAINLESS STEEL SOCKET CAP SCREWS WITH NYLOC NUTS HEX HEAD BOLTS
Allen key sizes: M2=1.5mm key, M3=2.5mm key, M4=3mm key, M5=4mm key, M6=5mm key, M8=6mm key. A2 Stainless Steel. Stainle

£903.06
New
Dome Nuts A2 Stainless Steel Hex Acorn Cap Nut (DIN 1587)
Premium A2 (304) stainless steel dome nuts (DIN 1587) with hex acorn cap design hide exposed threads, deliver a clean hi

£26.59
New
M6 10mm Nut Caps Protection Covers bolt protectors caps Black uk made
brand new m6 nut caps for nuts and bolts , made from strong black plastic ( uk made ) for hexagon heads and where a 10mm

£4.37

25 Cap Nuts deals are available from: Amazon, eBay stores, starting from £1.90.
The biggest discount we found is 4% on 150 Pcs Acorn Dome Cap Nuts, 304 Stainless Steel Acorn Dome DIN 1587 Thread Hex for Motorcycle Bicycles Furniture Lighting Saddle.Acorn Decorative Hex Cap Nuts - M3/M4/M5/M6/M8/M10 at Amazon.
The lowest price we found is £1.90 while the highest is £903.06.
Prices for the best Cap Nuts deals average at £90.71.
Last updated on March 20, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Cap Nuts.