VIGRUE 405PCS Hex Bolts Assortment Kit 1/4-20 5/16-18 3/8-16 - Durable

In this review the VIGRUE 405PCS Hex Bolts Assortment Kit is evaluated for home workshops and light industrial use; the bottom line is that it is a practical, corrosion-resistant hardware kit that covers a wide range of SAE bolt lengths. The reviewer found the biggest reason to buy is the combination of 304 stainless steel construction and the broad selection of sizes, which together make the set useful for repair work, fabrication projects, and general shop needs without having to order single sizes repeatedly.

Key Features

• 304 Stainless Steel: Offers reliable anti-rust and corrosion resistance so the fasteners hold up well in humid or exposed environments.
• Wide Size Range: Includes 14 SAE sizes across 1/4-20, 5/16-18 and 3/8-16 threads covering short and long lengths from 3/4 in to 3 in for versatile use.
• Comprehensive Assortment: The kit contains 405 pieces total with bolts, nuts, flat washers and spring washers to match a variety of projects without hunting for individual parts.
• Protective Packaging: Bolts and components are stored in a thickened case with foam and an outer kraft box for better transport and storage.
• Practical Quantities: With 96 hex bolts, 103 nuts, 103 flat washers and 103 spring washers, the quantities are balanced for repair and small build tasks.

Who It's For

This kit is ideal for hobbyists, small shop owners, maintenance technicians and DIYers who need a ready supply of standard SAE fasteners in a range of lengths. It is especially useful where corrosion resistance matters, such as outdoor projects, marine-adjacent repairs, or humid storage areas.

It is less suitable for someone seeking metric sizes, specialized fastener grades beyond common stainless, or for installers who need only a single specific length and prefer buying in bulk of that one size. Those users should look for single-size packages or metric assortments instead.

Pros & Cons

Pros

• Quality 304 stainless construction provides good corrosion resistance for varied environments.
• Extensive size variety and presence of longer 3 in bolts make the kit versatile for many repair tasks.
• Balanced counts of bolts, nuts and washers reduce the need to mix parts from other sets.
• Sturdy case with foam protection helps keep the kit organized in a shop or vehicle.

Cons

• Some customers reported the external case arrived damaged, so shipping and handling can affect initial condition.
• The set is SAE only, so metric users will need a different assortment.

Specifications

Brand	VIGRUE
Material	304 Stainless Steel
Total Pieces	405 PCS (bolts, nuts, flat washers, spring washers)
Bolt Sizes Included	1/4-20, 5/16-18, 3/8-16 in various lengths from 3/4 in to 3 in
Bolts Supplied	96 Hex Bolts
Nuts and Washers	103 Hex Nuts, 103 Flat Washers, 103 Spring Washers
Packaging	Thickened case with foam inserts and outer kraft box

Our Verdict

The VIGRUE 405PCS Hex Bolts Assortment is a strong value for DIYers and small shops who need a dependable set of SAE fasteners with corrosion resistance. Its 304 stainless steel construction, wide size range including 3 in bolts, and well thought out quantities make it worth buying for general repair and fabrication work, though metric users and those requiring pristine case condition on arrival should consider alternatives.

Frequently Asked Questions

Does the kit include nuts and washers?
Yes, the set includes 103 hex nuts, 103 flat washers and 103 spring washers along with 96 hex bolts.

Are these bolts stainless and suitable for humid environments?
They are made from 304 stainless steel, which offers good anti-rust and corrosion resistance for humid or outdoor use.

What thread sizes are covered?
The kit covers standard SAE threads 1/4-20, 5/16-18 and 3/8-16 across multiple lengths from 3/4 in to 3 in.