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Find the perfect Nut & Bolt Assortment Sets from our top 10 picks for 2026. Prices from 2.99 USD to 9.99 USD. Detailed comparison and expert reviews.
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Best Overall
Tmyjfjingxi 170PCS 7Sizes Plastic Screw Bolt Covers Caps Black Hex Nut Covers Caps M3 M4 M5 M6 M8 M10 M12 YY021

Tmyjfjingxi 170PCS 7Sizes Plastic Screw Bolt Cover...

9.66USD
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/ 10 Products Shown
Best Choice
Tmyjfjingxi - Tmyjfjingxi 170PCS 7Sizes Plastic Screw Bolt Covers Caps Black Hex Nut Covers Caps M3 M4 M5 M6 M8 M10 M12 YY021
#1
Best Choice
NEW
View Amazon reviews
40.00/100
  • Reliable material: Our bolt covers caps are made of quality Nylon, which is wear-resistant, not easy to break and deform, good in workmanship and smooth in edge
  • Product features: The screw bolt covers cap can be used directly only by buckling on bolts and nuts, which is very simple and convenient. It can also be very waterproof and dustproof and protect screws and nuts from rusting
$9.66
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wugongshan - wugongshan 145 Pcs Screws Bolt Covers Caps, Hex Head Dome Bolt Covers, Plastic Bolt Caps, Screw Caps Covers, Hexagonal Screw Bolts Cover Protection Caps for Matching, M4 M5 M6 M8 M10 M12
#2
Top Pick
NEW
View Amazon reviews
40.00/100
  • Premium Material: Our cover caps for screws are made of excellent plastic with smooth edges and high strength, which is not easy to break or deform, wear-resistant and durable for long time use.
  • Easy to Use: These different bolts covers for screws are easy to install and remove, easy to use, waterproof and dustproof, good for protecting screws from rust, water, dust etc.
$9.98
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smseace - smseace 110Pcs 6-Sizes Hex Acorn Cap Nuts Assortment Kit - M3/ M4/ M5/M6/M8/M10 Bolt Cover Caps for Protection, Indoor and Outdoor Nylon Screw Covers
#3
Top Pick
NEW
View Amazon reviews
40.00/100
  • Screw Covers Caps Kit:You will receive 110 pieces hex acorn cap nuts，including M3-30pcs, M4-30pcs, M5-20pcs, M6-10pcs, M8-10pcs, M10-10pcs(Please carefully check the dimension drawing before purchasing and confirm whether it can be used, so as to avoid the situation that it cannot be used after purchasing)
  • Enduring and Reliable: Our acorn caps are made from PA66 material, ensuring long-lasting performance and resistance to wear and tear
$8.99
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smseace - smseace 150pcs 6-Values Bolt and Nuts Protective Caps M4/M5/M6/M8/M10/M12 Bolt Covers Caps kit Nuts and Bolt Cap Assortment Kit Used Protect Hex Screws
#4
NEW
-23%
View Amazon reviews
40.00/100

-23%

  • Screw Covers Caps Kit: You will receive 150 pieces Screws Bolt Covers Caps，including M4x7-50pcs, M5x8-40pcs, M6x10-30pcs, M8x13-10pcs, M10x17-10pcs, M12x18-10pcs.Please confirm whether the size of the product meets your use before buying
  • Enhanced Protection: Protect your outdoor nuts and bolts with our bolt caps made from high-quality PA66 material, preventing rust and damage caused by exposure to weather conditions.Ideal for covering nuts and bolts before painting. You can hide any sharp bolt edges
$9.99 12.99 USD
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Mrdilla - 150 Pcs Metric Rubber Bolt Caps, Hex Head Dome Covers for M4–M12 Bolts, Waterproof Dustproof Protective Nut End Caps
#6
NEW
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40.00/100
  • Screw Covers Caps Kit:You will receive 150 pieces hex acorn cap nuts，including M4-50pcs, M5-30pcs, M6-20pcs, M8-20pcs, M10-15pcs, M12-15pcs, more sizes can meet your different needs
  • Quality Materials: Hexagon head dome bolt cover is made of high quality nylon with smooth edges, high strength, not easy to break and deform, wear-resistant and durable. Protect your nuts even in harsh environments and keep them safe and intact for a long time
$9.69
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Meuey Lyot - Meuey Lyot-Bolt Nut Protection Cap Black Hex Head Nylon Bolt nut Protective Cover M8x14 mm-30PCS
#7
NEW
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40.00/100
  • Bolt and nut protective caps are used to decorate hex bolts and nuts, improve the appearance of the product, not easy to damage, easy to use
  • Bolt and nut protective caps are made of high-quality plastic materials with high hardness, no rust and easy to use. It can effectively prevent rust and corrosion of screws, making them more suitable for indoor, outdoor or humid environments and increasing service life.
$6.99
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Mozeat Lens - 30 PCS Bolt Nut Protective Cap Hex Head Bolt Covers M6×10mm Dome Plastic Bolt Caps Black Hexagonal Dome Protective Cap Exposed
#8
NEW
-16%
View Amazon reviews
40.00/100

-16%

  • Complete Set: This package includes 30 hex head bolt covers, perfect for decorating and enhancing the appearance of hex bolts and nuts. Please ensure you check the size requirements before purchasing.
  • Durable and Protective: Our dome plastic bolt caps are made from rigid plastics that are waterproof, durable, and resistant to breakage. They provide excellent protection for screws and nuts, safeguarding them against rust, water, dust, and other external elements.
$2.99 3.59 USD
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DANA FRED - 197-Piece Black Bolt Nut Protective Cap Kit - M4 to M12 Sizes, Nylon Insert Locknut, Protects Exposed Screws & Bolts
#9
NEW
View Amazon reviews
40.00/100
  • 【Bolt Nut Protective Cap Kit】 :M4/ M5/M6/M8/M10/M12 Bolt Cover Screw Cap , total 197pieces, different sizes and enough quantities hex head dome bolt covers can meet your different daily needs
  • 【High Quality Material】These Black bolt covers are made of high-quality plastic, reliable, good toughness,not easy to break, smooth and beautiful, long service life
$9.99
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Conclusion: nut and bolt covers

This selection is regularly updated to ensure you get the best deals and top-rated products.

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Based on our analysis, the #1 product on our list offers the best value with a rating of 0.0/5.
Prices range from 2.99 USD to 9.99 USD, offering options for every budget.
This selection is regularly updated to ensure you get the best deals and top-rated products.
We select products based on their Amazon popularity, customer ratings, and value for money.

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Tmyjfjingxi 170PCS 7Sizes Plastic Screw Bolt Covers Caps Black Hex Nut Covers Caps M3 M4 M5 M6 M8 M10 M12 YY021
🥇 #1

Tmyjfjingxi 170PCS 7Sizes Plastic Screw...

9.66 USD
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Buying Guide Nut & Bolt Assortment Sets 2026

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