M4 M5 M6 M8 Metric Bolt Assortment Kit - Heavy Duty Fasteners

In this review of the M4 M5 M6 M8 Metric Bolt Assortment Kit the bottom line is simple: this kit suits hobbyists, home repairers and light industrial users who need a wide range of reliable fasteners in one place. The reviewer found the Grade 8.8 alloy steel construction and zinc plating deliver solid strength and good corrosion resistance for general use, while the comprehensive selection of bolts, nuts and washers saves time hunting for individual sizes. The included storage case helps organization, making the kit a practical grab-and-go option for varied projects.

Key Features

• Assorted sizes: Includes M4, M5, M6 and M8 bolts with matching nuts and washers to cover many common repair and build tasks.
• Grade 8.8 alloy steel: Higher tensile strength than ordinary fasteners provides more durable joints for furniture, automotive and machinery use.
• Zinc plated finish: Improves corrosion and anti-rust performance in everyday environments for longer service life.
• Comprehensive quantity: 940 pieces give a broad supply of fasteners so small runs of projects do not run short of parts.
• Reusable storage case: Transparent, labeled compartments keep bolts, nuts and washers sorted and easy to find.

Who It's For

The kit is best for DIY enthusiasts, makers and small workshop owners who frequently assemble or repair furniture, bed frames, RV fittings and appliances and appreciate having multiple thread pitches and sizes on hand. It is also useful for hobbyists working on 3D printer builds or small mechanical projects that require metric fasteners.

It is less suited for heavy structural or high-spec industrial applications that require specialized grades, custom coatings or certified traceability; professionals needing certification should look for certified fasteners. Keep the small parts away from children under 6 as a safety precaution.

Pros & Cons

Pros

• High variety of sizes and thread pitches saves time sourcing separate parts.
• Grade 8.8 alloy steel construction provides strong, long-lasting fasteners.
• Zinc plating and tested anti-rust performance suit many household and workshop conditions.
• Clear labeled storage case simplifies organization and transport.

Cons

• Storage capacity received mixed feedback; very large projects may outgrow the kit.
• Not intended for certified, high-spec structural jobs that demand traceable materials.

Specifications

Product name	M4 M5 M6 M8 metric bolt assortment kit
Pieces included	940 pieces
Material	Grade 8.8 alloy steel, zinc plated
Contents	Bolts (M4, M5, M6, M8) with matching nuts and washers
Packaging	Reusable transparent storage suitcase with labeled compartments
Applications	Furniture, bed frames, automotive, RV, appliances, DIY projects

Our Verdict

The M4 M5 M6 M8 Metric Bolt Assortment Kit is a practical value buy for hobbyists and home repairers who need a broad set of reliable metric fasteners. Its Grade 8.8 alloy steel bolts, zinc plating and clear storage case make it a convenient, durable choice for a wide range of household and light workshop uses, though users with certified industrial needs should seek specialized options.

Frequently Asked Questions

Are the bolts rust resistant?
The bolts are zinc plated and tested for improved corrosion and anti-rust performance suitable for general environments.

Does the kit include nuts and washers for each bolt size?
Yes, the assortment pairs bolts with matching nuts and washers across the included M4, M5, M6 and M8 sizes.

Is the storage case reusable and labeled?
Yes, the kit comes in a sturdy transparent storage suitcase with labels for easy identification of sizes and quantities.