Kadrick 700Pcs Grade 8.8 Metric Bolt Assortment - Heavy Duty Kit

In this review of the Kadrick 700Pcs Grade 8.8 Metric Bolt Assortment, the bottom line is simple: this kit is for hobbyists, mechanics, and maintenance pros who need a comprehensive, ready-to-use selection of strong flange bolts, nuts, and washers. The single biggest reason to buy is the breadth of parts and the high-strength 8.8 carbon steel fasteners, which provide reliable mechanical performance for repairs and projects where resistance to loosening and good preload are important.

Key Features

• Comprehensive set: Includes 700 pieces with 175 bolts, 175 nuts, 175 washers, and 175 spring washers, giving plenty of spare parts for multiple jobs.
• High strength: Bolts are made from carbon steel with an 8.8 strength rating, so they withstand higher preload forces and perform well under mechanical stress.
• Metric sizes: Contains commonly used M6, M8, and M10 flange hex bolts with lengths from about 12mm to 45mm, covering most routine metric fastening needs.
• Corrosion resistance: An environmentally friendly trivalent chromate plating improves rust resistance, suitable for both indoor and outdoor applications.
• Organized packaging: Parts come in a clear-lid plastic box with labeled compartments and an outer cardboard box for storage or gifting.
• Warranty and support: Backed by the brand's two-decade experience and a 24-month warranty with returns and exchanges available.

Who It's For

This kit is best for homeowners who do occasional repairs, DIY enthusiasts who like to keep a stocked fastener drawer, and small workshop mechanics who need a convenient assortment of reliable metric bolts and matching hardware. The combination of bolts, nuts, washers, and spring washers makes it a go-to for assembling frames, replacing corroded fasteners, and general maintenance.

It is less suitable for specialist industrial applications that require certified traceability, exotic materials, or nonstandard thread pitches; those buyers should look for industrial-grade certified fasteners or bespoke orders rather than an off-the-shelf assortment box.

Pros & Cons

Pros

• Excellent value for quantity, with 700 parts covering common M6, M8, and M10 sizes.
• Good mechanical performance from grade 8.8 carbon steel bolts that resist loosening under load.
• Environmentally friendlier trivalent chromate plating for added corrosion protection.
• Clear plastic organizer and labeled packaging make it easy to find parts quickly.

Cons

• Some customers note the storage box could use more compartments for finer organization.
• Not intended for applications that require stainless steel or specialty coatings for extreme environments.

Specifications

Brand	Kadrick
Total pieces	700 pieces (175 bolts, 175 nuts, 175 washers, 175 spring washers)
Bolt grades	Carbon steel, Grade 8.8
Metric sizes	M6, M8, M10 (lengths approx. 12mm to 45mm)
Coating	Trivalent chromate zinc plating (eco-friendly)
Packaging	Plastic organizer box with clear lid and outer cardboard box
Warranty	24 months with returns and exchanges

Our Verdict

For general maintenance, DIY projects, and workshop backup supplies, the Kadrick 700-piece assortment delivers strong value thanks to its large quantity, reliable grade 8.8 bolts, and corrosion-resistant plating. It is a practical purchase for anyone who needs a broad selection of metric flange hardware in one neat kit, though buyers with specialized material requirements should consider alternatives.

Frequently Asked Questions

Does the kit include matching washers and spring washers?
Yes, the kit contains 175 washers and 175 spring washers matched to the bolt sizes included.

Are the bolts suitable for outdoor use?
The trivalent chromate zinc plating provides corrosion resistance suitable for many indoor and outdoor projects, though not as durable as stainless steel in very harsh environments.

Is the box well organized for storage?
The clear plastic organizer and labeled outer box make parts easy to see, but some users report they would prefer more compartments for finer sorting.