FOLIV 566Pcs Heavy Duty Bolts and Nuts Assortment Kit - Durable Grade

In this review the FOLIV 566Pcs Heavy Duty Bolts and Nuts Assortment Kit is assessed for DIYers, mechanics and shop owners who need a large, organized selection of SAE fasteners. The bottom line: this kit is best for projects that demand high strength and a broad size range because it supplies Grade 8 alloy steel bolts plus matching nuts and spring washers in a clearly labeled, sturdy case. It is not a precision fittings pack for metric systems, but it delivers strong, corrosion-resistant hardware for general repair and fabrication.

Key Features

• Grade 8 alloy steel: Provides elevated hardness and tensile strength for demanding fastening tasks and better wear resistance than standard grades.
• Comprehensive SAE sizes: Includes 1/4-20, 5/16-18 and 3/8-16 ranges with lengths from short to long so users can match fastener length to diverse repairs.
• Large assortment: Packed with 176 hex bolts, 130 hex nuts and 130 spring washers for a total of 566 pieces to keep common sizes on hand.
• Organized storage box: Transparent, size-labeled compartments make it quicker to find the right fastener and keep the kit ready for repeat use.
• Protective packaging: Foam padding and a thickened kraft outer box reduce shipping damage and preserve the case integrity.
• Green support: Purchase helps fund environmental education through a donation program tied to the brand.

Who It's For

This kit is ideal for home mechanics, small machine shops, furniture assemblers and anyone who routinely works on cars, motorcycles or general machinery and needs a robust set of SAE fasteners in multiple lengths. The organized case and wide length selection make it especially useful for users who prefer to keep a ready inventory for on-the-spot repairs.

It is less suitable for people who require metric fasteners, specialty coatings, or precision aerospace bolts; buyers needing corrosion-resistant stainless finishes or metric thread pitches should look elsewhere. Also, those who need only a handful of pieces may find the full 566-piece kit more than necessary.

Pros & Cons

Pros

• High strength Grade 8 material gives reliable durability for heavy-duty use.
• Extensive size assortment across three common SAE thread standards reduces trips to the hardware store.
• Well organized, transparent box with labels and protective packaging simplifies storage and transport.

Cons

• Durability feedback is mixed from some users, so heavy corrosion environments may still require stainless options.
• All pieces are SAE; metric-only users must seek a different kit.

Specifications

Brand	Foliv
Material Grade	Grade 8 alloy steel
Thread Sizes	1/4-20, 5/16-18, 3/8-16
Bolt Length Range	1/4-20: 1/2in to 1-1/2in; 5/16-18: 3/4in to 2in; 3/8-16: 3/4in to 2in
Piece Count	566 pieces total (176 bolts, 130 nuts, 130 spring washers)
Packaging	Transparent labeled box with foam protection and thickened kraft box

Our Verdict

The FOLIV 566-piece assortment is a strong-value choice for DIY mechanics, shop owners and hobbyists who need a wide range of heavy duty SAE fasteners in one organized kit. It pairs Grade 8 strength with clear labeling and protective packaging, making it practical for regular repair work; however, metric users or those needing stainless finishes should consider alternative kits.

Frequently Asked Questions

Are these bolts suitable for automotive repairs?
Yes, the Grade 8 alloy steel bolts offer high strength appropriate for many automotive and motorcycle repairs that require SAE fasteners.

Does the kit include nuts and washers for every bolt?
The kit includes 176 bolts plus 130 nuts and 130 spring washers, providing a large complement but not a one-to-one match for every bolt size and length.

Is the case durable for workshop storage?
Yes, the fasteners come in a transparent, labeled box with foam protection and a reinforced outer kraft box to withstand shipping and routine storage.