Metric Bolt Assortment Kit 268pcs M5 M6 M8 - Durable Yellow Zinc

Our review of this 268-piece metric bolt assortment finds it well suited for DIYers and professionals who need a compact, organized supply of strong fasteners for outdoor or automotive work. The single biggest reason to buy is the mix of Grade 8.8 alloy flange bolts, nuts and washers in useful M5, M6 and M8 sizes, all stored in a double-layer, labeled case that saves time on projects and resists weathering thanks to yellow zinc plating.

Key Features

• Abundant specifications: The kit contains 268 pieces across M5, M6 and M8 flange bolts, nuts and washers so you have common sizes available for many tasks.
• Grade 8.8 alloy steel: Bolts are made from high strength alloy steel to reduce damage and provide better load resistance than lower grade fasteners.
• Yellow zinc plating: The gold zinc coating improves corrosion resistance for outdoor use on vehicles, garden hardware and exposed furniture.
• Toothed flange gaskets: Bolts include non-slip toothed flange washers that help prevent loosening in vibration-prone applications.
• Organized storage case: A double-layer compartmentalized case with clear labels keeps every size easy to find and speeds up work on the bench or job site.

Who It's For

This assortment is aimed at mechanics, hobbyists, carpenters and anyone who regularly works on outdoor projects or vehicle repairs and needs a ready supply of metric flange bolts and matching nuts and washers. The strength and weather resistance make it a practical choice for applications where corrosion resistance and durability matter.

Those who need specialty fasteners outside M5, M6 or M8, stainless steel for marine saltwater exposure, or metric sizes smaller than M5 should look elsewhere. This kit focuses on common outdoor and automotive tasks rather than every possible metric size.

Pros & Cons

Pros

• High strength Grade 8.8 bolts offer better durability for mechanical and structural use.
• Yellow zinc plating adds rust resistance suited to outdoor and automotive applications.
• Well organized double-layer case with labeled compartments speeds selection and storage.
• Flanged bolt heads with toothed washers improve grip and reduce loosening.

Cons

• Kit is limited to M5, M6 and M8 sizes, so it does not cover very small or large metric fasteners.
• Yellow zinc plating is corrosion resistant but not equivalent to stainless steel for harsh marine environments.

Specifications

Our Verdict

For DIYers and professionals who regularly tackle automotive repairs, outdoor furniture assembly or general maintenance, this 268-piece metric assortment offers strong value through high strength Grade 8.8 bolts, corrosion-resistant yellow zinc plating and a very usable selection of M5, M6 and M8 sizes in a tidy case. It is a smart, practical kit when stainless steel is not required and a compact organized supply is valued.

Frequently Asked Questions

Are the bolts suitable for outdoor use?
Yes, the yellow zinc plating provides enhanced corrosion resistance for outdoor and automotive use, though stainless steel is better for saltwater exposure.

What sizes are included?
The set contains bolts, nuts and washers in metric sizes M5, M6 and M8 across varying lengths.

What grade are the bolts?
Bolts are Grade 8.8 alloy steel, offering higher strength and damage resistance than lower grade fasteners.