700pcs Metric Bolt Assortment M6 M8 M10 M12 - Grade 8.8 Heavy Duty

In this review of the 700pcs Metric Bolt Assortment the bottom line is simple: this kit is for anyone who needs a durable, well organized metric fastener set for heavy duty projects. The reviewer found the biggest reason to buy is the use of grade 8.8 alloy steel with a yellow zinc coating, which delivers noticeably higher hardness and corrosion resistance compared with typical hardware-store bolts. The set is also practical for frequent use because all components are sorted into clear, handled boxes for quick access.

Key Features

• Grade 8.8 alloy steel: Provides higher tensile strength and improved reliability for structural and mechanical applications.
• Yellow zinc plated: Offers corrosion resistance and rust protection for outdoor and workshop use.
• Comprehensive assortment: Includes 75 M6, 60 M8, 29 M10 and 11 M12 sets plus matching lock and flat washers for common metric needs.
• 700 total pieces: A large count that reduces the need to rebuy individual sizes during maintenance or fabrication work.
• Clear compartment boxes: Each size is stored separately with a handle for easy transport and organized access on job sites.

Who It's For

This kit suits professionals and serious DIYers who tackle large equipment repairs, pipe laying, outdoor installations, or routine automobile maintenance and need robust, repeatable fasteners. The high grade material and plating make it appropriate where strength and corrosion resistance matter.

It is less suited to someone who only needs a handful of bolts for occasional home projects or precise machinery requiring stainless steel or specialty fasteners; those buyers should choose a smaller or more specialized set.

Pros & Cons

Pros

• High-strength grade 8.8 alloy steel for demanding applications.
• Yellow zinc coating improves corrosion resistance for outdoor use.
• Large 700pc count with matching nuts and washers reduces restocking frequency.
• Clear, compartmentalized packaging with handle keeps sizes organized and portable.

Cons

• Not stainless steel, so it may not suit highly corrosive environments like marine salt spray long-term.
• Fewer M10 and M12 pieces compared with M6 and M8, so heavy use of larger sizes may exhaust stock quicker.

Specifications

Our Verdict

The 700pcs Metric Bolt Assortment is a strong value for professionals and avid DIYers who need a dependable, organized supply of metric fasteners. With grade 8.8 alloy steel and yellow zinc plating it offers toughness and corrosion protection for many outdoor and mechanical jobs, though those needing stainless performance should look elsewhere.

Frequently Asked Questions

Are nuts and washers included?
Yes, the kit contains matching nuts plus lock washers and flat washers for each size listed.

What sizes are most plentiful?
The set includes the most M6 and M8 pieces (75 and 60 sets respectively), with fewer M10 and M12 sets.

Is this suitable for automotive repairs?
Yes, the grade 8.8 bolts and zinc coating make this kit suitable for many automotive maintenance tasks where stainless fasteners are not required.