Best Stainless Steel Hex Bolts of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 1 Feb 2025

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Stainless steel hex bolts are high-quality fasteners that are commonly used in construction, automotive, and engineering applications. These bolts are made from corrosion-resistant stainless steel, making them ideal for use in harsh environments. They feature a hexagonal head that can be easily tightened or loosened with a wrench or pliers. Stainless steel hex bolts come in a range of sizes and lengths to suit different needs and are known for their durability and strength. They are a reliable choice for any project that requires secure and long-lasting fastening.

At a Glance: Our Top Picks

M6 Flanged Hex Set Screw - Pack of 10 Cover #TOP 1
M6 Flanged Hex Set Screw - Pack of 10
ftb score rating icon 9.8
sourcing map M6x140mm Stainless Steel Hex Bolts Cover #TOP 2
sourcing map M6x140mm Stainless Steel Hex Bolts
ftb score rating icon 9.7
AMLOOPH M6 Hex Button Head Screws Cover #TOP 3
AMLOOPH M6 Hex Button Head Screws
ftb score rating icon 9.5

Top 10 Stainless Steel Hex Bolts

#TOP 1

M6 Flanged Hex Set Screw - Pack of 10

M6 x 25mm
M6 Flanged Hex Set Screw - Pack of 10 Cover
M6 (6mm x 25mm) Flanged Hex Set Screw (Fully Threaded Bolt) - A2 Grade Stainless Steel (pack of 10)

The RC Screws Hex Set offers M6 (6mm) thread size and a length of 25mm, making it ideal for various fastening applications. With a flange diameter of 14.2mm, this design ensures a stable and secure fit, reducing the risk of loosening over time. The 6.6mm head length allows for easy engagement with standard tools, while the 10mm spanner size makes installation straightforward. Being fully threaded provides versatility, allowing you to use it across different materials and projects efficiently.

What We Like
Durable A2 stainless steel
Easy to install
Secure fastening
Versatile use
#TOP 2

sourcing map M6x140mm Stainless Steel Hex Bolts

a18082900ux1016
Silver Tone
M6x140mm
sourcing map M6x140mm Stainless Steel Hex Bolts Cover
sourcing map M6x140mm Hex Bolts 304 Stainless Steel Hexagon Screw Bolt 4pcs

The sourcing map Hex Bolts are made from durable 304 stainless steel, ensuring they resist rust and corrosion in both wet and dry environments. Measuring M6 x 140mm, these bolts are perfect for various applications, including household maintenance and construction projects. With a hex width of 10mm, they provide a firm grip for easy installation. You will appreciate their versatility, as they can be used individually or with a hex nut and washer for added security in your DIY projects.

What We Like
Corrosion-resistant material
Versatile for various applications
Easy installation with a wrench
Durable construction
#TOP 3

AMLOOPH M6 Hex Button Head Screws

M6x50mm-A2(10)
Silver
M6x50mm-A2(10)
AMLOOPH M6 Hex Button Head Screws Cover
AMLOOPH M6 Bolts, M6 X 50mm Hex Socket Button Head Machine Bolts/Screws -Fully Threaded A2 304 Stainless Steel Hex Long Socket Screws M6 (Pack Of 10)

The AMLOOPH M6 Screws are high-quality hexagon socket button head bolts designed to meet ISO 7380 standards. With a length of 50mm, these fully threaded bolts provide excellent grip and stability for various applications, from home repairs to furniture assembly. The robust A2 304 stainless steel construction ensures durability, making them perfect for mechanical appliances and threaded rods. This pack contains 10 bolts, allowing you to tackle multiple projects with ease and confidence.

What We Like
Durable stainless steel material
Meets ISO 7380 standards
Versatile for various applications
Pack of 10 for convenience
Fully threaded for better grip
#TOP 4

M6 Hex Set Screw - A2 Grade Stainless Steel

M6 x 16mm
M6 Hex Set Screw - A2 Grade Stainless Steel Cover
M6 (6mm x 16mm) Hex Set Screw (Fully Threaded Bolt) - A2 Grade Stainless Steel (pack of 20)

The RC Screws M6 Hex Bolt features a 6mm thread size, making it suitable for a variety of applications. With a 16mm length, it offers versatility in securing components together. The 10mm head diameter provides a stable grip, ensuring easy installation and removal. Additionally, the fully threaded design allows for enhanced engagement, which can improve the strength of your connections, giving you peace of mind in your projects.

What We Like
High-quality stainless steel material
Versatile thread size
Stable head diameter
Fully threaded for better grip
#TOP 5

YEEZET 44-Piece Hex Bolts and Nuts Kit

YEEZET
Stainless Steel
YEEZET 44-Piece Hex Bolts and Nuts Kit Cover
YEEZET 44 Pieces M6 M8 M10 304 Stainless Steel Hex Bolts, Washers, Spring Washers & Nuts Assortment Kit

The YEEZET Hex Bolts Kit offers high-quality 304 stainless steel components that are resistant to rust, moisture, and corrosion. This ensures durability and longevity, making it ideal for various applications. The standard size and precise threading provide a secure grip, preventing slippage during use. Moreover, the assortment features a variety of screws, nuts, and washers that cater to different needs, allowing you to manage various projects with ease. The practical plastic packaging keeps everything organised and protected, adding convenience to your toolkit.

What We Like
High-quality stainless steel
Variety of sizes available
Secure grip with standard sizing
Durable and practical packaging
#TOP 6

Sourcingmap Stainless Steel Hex Bolt Kit

a17112100ux0083
Silver Tone
Sourcingmap Stainless Steel Hex Bolt Kit Cover
Sourcingmap 5 Set M6x100mm 316 Stainless Steel Hex Bolts w Nuts and Washers Assortment Kit

The Sourcingmap Hex Bolt Kit includes five sets of M6x100mm hex bolts, making it an essential addition to your toolbox. Crafted from durable 316 stainless steel, these bolts offer excellent resistance to corrosion, ensuring longevity in various applications. With a thread diameter of M6 and a pitch of 1.0mm, you will find them suitable for a range of projects. The fully threaded design allows for secure fastening, providing peace of mind for your constructions.

What We Like
Durable stainless steel material
Fully threaded for secure fastening
Lightweight and easy to handle
Versatile for various projects
#TOP 7

Litorange M6.3 Stainless Steel Self Drilling Screws

B055-101
Silver
101 psc M6.3
Litorange M6.3 Stainless Steel Self Drilling Screws Cover
Litorange 101 PCS M6.3 Stainless Steel Self Drilling Hex Head Screws with Gasket, 4 Sizes of Hex Head Self Tapping Screws with Socket M6.3 * 19 25 32 45 mm, Boxed.

The Litorange Self Drilling Screws are crafted from high-quality stainless steel, ensuring exceptional hardness and strong corrosion resistance. Each screw is accompanied by a washer, enhancing its effectiveness. You will receive 101 pieces in four different sizes, allowing you to choose the perfect fit for your project. The practical storage case keeps your screws organised and easily accessible, making it convenient for you to find the right size when you need it.

What We Like
High-quality stainless steel
Includes washers with screws
Organised storage case
Four size options available
#TOP 8

AMLOOPH M3 20mm Stainless Steel Screws

M3x20mm(20)
Silver
M3x20mm(20)
AMLOOPH M3 20mm Stainless Steel Screws Cover
AMLOOPH M3 Screws, M3 X 20mm Allen Socket Head Cap Screws/Bolts - 3mm Diameter Fully Threaded M3 Bolts 20mm A2 Stainless Steel Long Hex Socket Bolt M3 Coarse (Pack Of 20)

The AMLOOPH M3 Screws are high-quality Allen socket head cap screws designed for various applications. With a length of 20mm, these fully threaded bolts fit your needs for household tasks and furniture assembly. Their DIN 912 standard tolerance ensures reliability and precision, making them ideal for home repairs and mechanical appliances. Made from premium A2 grade stainless steel, they provide excellent durability and strength, ensuring a long-lasting performance for any project.

What We Like
High-quality A2 stainless steel
20 screws in a pack
Meets DIN 912 standards
Ideal for home repairs
Superior tensile strength
#TOP 9

AHC M10 Stainless Steel Hex Bolt Pack

AHC
5053440612475
Silver
AHC M10 Stainless Steel Hex Bolt Pack Cover
AHCA2 Stainless Steel Fully Threaded Hex Bolt (Setscrew) M10 10mm x 150mm (Pack of 5)

The AHC Hex Bolt M10 is a reliable choice for various fastening needs. With a length of 150mm and a diameter of 10mm, it is versatile enough for different applications. The stainless steel construction ensures durability, making it ideal for outdoor use or in damp environments. The pack contains five hex bolts, providing convenience for larger projects or repairs, allowing you to have the right amount on hand when you need them.

What We Like
Durable stainless steel construction
Versatile length and diameter
Convenient pack of five
Ideal for outdoor use
#TOP 10

sourcing map M12x80mm Hex Bolts - 5pcs

a18083100ux0783
Silver Tone
M12-1.75 x 80mm
sourcing map M12x80mm Hex Bolts - 5pcs Cover
sourcing map M12x 80mm Hex Bolts 304 Stainless Steel Hexagon Screw Bolt 5pcs

The sourcing map Hex Bolts are crafted from durable 304 stainless steel, offering excellent corrosion resistance in both wet and dry environments. Each bolt measures M12 x 80mm, making them ideal for various applications, including household assembly and machine maintenance. With a tightening torque of 78-104 m, these bolts ensure a secure fit, enhancing the reliability of your projects. The package includes five hex bolts, providing ample supply for multiple tasks.

What We Like
Corrosion resistant material
Suitable for various applications
Secure tightening torque
Includes five bolts per pack
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the best grade of stainless steel bolts?

If a bolt is stainless steel, we recommend replacing with stainless steel. Furthermore, if a bolt grade is 316 stainless, prized for extra corrosion resistance, we always recommend using 316 when replacing and not a lesser bolt grade such as 304 or 303.

2. Is stainless steel good for bolts?

Stainless Steel Fasteners are, most importantly, corrosion resistant. They have an excellent life cycle, are environmentally friendly and are 100% Recyclable. They are also resistant to high heat as well as extremely cold temperatures making stainless steel fasteners the material of choice for almost any application!

3. Are stainless steel bolts weak?

In fact, due to their low carbon content, many stainless steel alloys cannot be hardened through heat treatment. Therefore, when compared to regular steel, the stainless alloys used in bolts are slightly stronger than an un-hardened (grade 2) steel but significantly weaker than hardened steel fasteners.

4. Will stainless steel bolts rust?

Stainless steel screws achieve elevated rust resistance thanks to their chromium-oxide composition. Fasteners with a chromium oxide coating provide extra resistance to rust and corrosion by using the added oxygen as a protective layer.

Editor's Notes

During our stainless steel hex bolt research, we found 208 stainless steel hex bolt products and shortlisted 10 quality products. We collected and analyzed 8,803 customer reviews through our big data system to write the stainless steel hex bolts list. We found that most customers choose stainless steel hex bolts with an average price of £6.79.

The stainless steel hex bolts are available for purchase. We have researched hundreds of brands and picked the top brands of stainless steel hex bolts, including RC Screws, sourcing map, AMLOOPH, YEEZET, Uxcell. The seller of top 1 product has received honest feedback from 406 consumers with an average rating of 4.9.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.