Best Flat Hex Bolts of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 1 Feb 2025

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Flat hex bolts are essential hardware components used in various industries such as construction, automotive, and manufacturing. These bolts feature a six-sided head and a flat bearing surface designed to distribute the load and prevent damage to the materials being fastened. They are available in different sizes, materials, and finishes to suit different applications. Flat hex bolts are known for their strength, durability, and reliability. They are commonly used to join two or more objects together and provide stability and support to structures.

At a Glance: Our Top Picks

M6 Silver Flat Head Furniture Screws Pack of 12 Cover #TOP 1
M6 Silver Flat Head Furniture Screws Pack of 12
ftb score rating icon 9.8
sourcing map M6 Hex Head Screws Kit Cover #TOP 2
sourcing map M6 Hex Head Screws Kit
ftb score rating icon 9.7
TOP-VIGOR M8 Hex Head Screw Kits Cover #TOP 3
TOP-VIGOR M8 Hex Head Screw Kits
ftb score rating icon 9.5

Top 10 Flat Hex Bolts

#TOP 1

M6 Silver Flat Head Furniture Screws Pack of 12

1316
Silver
M6 x 50mm
M6 Silver Flat Head Furniture Screws Pack of 12 Cover
M6 (6mm x 50mm) Silver Flat Head Furniture Screw Hex Drive Socket with Metric Thread Fully Threaded with Dogpoint Furniture Bolts for Furniture Cots Beds Crib and Chairs (Pack of 12)

The Screws City M6 Furniture Screws are designed for convenience and reliability in furniture assembly. Each screw measures 6mm x 50mm, making them ideal for securing various items like cots, beds, and chairs. With a fully threaded design, these screws allow for a strong hold, ensuring your furniture remains stable and safe. The metric thread provides compatibility with standard fixtures, simplifying your projects. Sold in a pack of 12, you’ll have plenty of screws on hand for your furniture needs.

What We Like
Durable and reliable design
Compatible with standard fixtures
Convenient pack size of 12
Fully threaded for strong hold
Ideal for multiple furniture types
#TOP 2

sourcing map M6 Hex Head Screws Kit

a21031300ux0040
Silver
M6 x 40mm
sourcing map M6 Hex Head Screws Kit Cover
sourcing map M6 x 40mm Hex Head Screws Bolts, Nuts, Flat & Lock Washers Kits, 304 Stainless Steel Fully Thread Hexagon Bolts 6 Sets

The sourcing map Hex Screws offer a reliable fastening solution with their precision M6 x 40mm thread size, ensuring a neat and secure fit. Each kit includes a hexagonal bolt, nut, flat washer, and lock washer, providing you with all the essentials for installation. Made from durable 304 stainless steel, these screws resist corrosion and rust, perfect for various indoor and outdoor applications. Whether you're working on home appliances or industrial equipment, you can count on these screws for a sturdy and long-lasting hold.

What We Like
High corrosion and rust resistance
Comprehensive kit for easy installation
Durable 304 stainless steel material
Versatile for various applications
Secure locking effect for safety
#TOP 3

TOP-VIGOR M8 Hex Head Screw Kits

W10247FP4
M8 x 35mm
TOP-VIGOR M8 Hex Head Screw Kits Cover
TOP-VIGOR 4Pcs M8 x 35mm Hex Head Screws Bolts, Nuts, Flat & Lock Washers Kits, 304 Stainless Steel Fully Thread Hexagon Bolts for DIY Bike Motorcycles Repair

The TOP-VIGOR Hex Screw Kit includes M8 x 35mm bolts, nuts, and washers made from high-quality 304 stainless steel. This material ensures that the screws resist rust and deformation, giving you a durable solution for your projects. The thoughtful design features a smooth surface, enhancing both aesthetics and safety, while the hexagonal slot drive allows for secure fastening, reducing slippage during installation. With its versatile use, this kit is perfect for various applications, from machinery repairs to DIY projects.

What We Like
High-quality stainless steel
Rust and deformation resistant
Secure hexagonal drive
Smooth surface for safety
Versatile for many applications
#TOP 4

sourcing map M6 Hex Head Screw Kits

a21031300ux0035
Silver
M6 x 25mm
sourcing map M6 Hex Head Screw Kits Cover
sourcing map M6 x 25mm Hex Head Screws Bolts, Nuts, Flat & Lock Washers Kits, 304 Stainless Steel Fully Thread Hexagon Bolts 10 Sets

The sourcing map Hex Screw Kits include M6 x 25mm hexagonal bolts that feature precise mechanical threads, ensuring a strong and secure fit for your projects. The kit contains 10 sets, each with a bolt, nut, flat washer, and lock washer, providing everything you need for effective installation. Made from 304 stainless steel, these fasteners boast excellent corrosion and rust resistance, making them ideal for both indoor and outdoor use. With their hexagon head design, you can easily tighten them using a wrench, offering convenience and reliability in various applications.

What We Like
High corrosion resistance
Includes essential fastener components
Secure and precise fit
Suitable for various applications
#TOP 5

sourcing map M10 x 100mm Hex Head Screw Kits

a21031800ux0671
Silver
M10 x 100mm
sourcing map M10 x 100mm Hex Head Screw Kits Cover
sourcing map M10 x 100mm Hex Head Screws Bolts, Nuts, Flat & Lock Washers Kits, 304 Stainless Steel Fully Thread Hexagon Bolts 4 Sets

The sourcing map Hex Head Screws are designed for easy installation with a wrench, featuring an M10 x 100mm thread size. This product includes four sets of bolts, nuts, flat, and lock washers, ensuring you have everything needed for your project. Made from 304 stainless steel, these screws offer superior hardness and prevent corrosion and rust, making them ideal for both indoor and outdoor use. You can confidently use them for various applications, from home appliances to industrial equipment.

What We Like
Durable 304 stainless steel material
Includes bolts, nuts, and washers
Corrosion and rust resistant
Easy installation with a wrench
#TOP 6

sourcing map M8 Hex Head Screw Kits

a21032400ux0046
Silver
M8 x 100mm
sourcing map M8 Hex Head Screw Kits Cover
sourcing map M8 x 100mm Hex Head Screws Bolts, Nuts, Flat & Lock Washers Kits, 304 Stainless Steel Fully Thread Hexagon Bolts 4 Sets

The sourcing map Hex Screw Kits feature M8 x 100mm precision mechanical threads, ensuring a secure fit that is less likely to slip. Each kit includes essential components such as bolts, nuts, flat washers, and lock washers, making it convenient for you to have everything needed for installation. Made from durable 304 stainless steel, these screws offer excellent corrosion and rust resistance, ensuring longevity even in challenging environments. Their hexagonal shape allows for easy installation using a wrench, providing you with a reliable fastening solution for various applications.

What We Like
High corrosion resistance
Includes essential installation components
Easy to install with a wrench
Durable 304 stainless steel
Suitable for various applications
#TOP 7

72 Pcs M6 Hex Socket Bolt Set

QiXinGYL
Black
72 Pcs M6 Hex Socket Bolt Set Cover
72 Pcs M6 Bolts Set, Black Flat Head Furniture Bolts, Hex Socket Countersunk Screws, Metric Thread Fully Threaded Bolts, Allen Key Bolts Set, Hexagonal Socket Machine Screws Bolts Set

The QiXinGYL Bolt Set includes 72 high-quality carbon steel hex bolts designed for durability and performance. These corrosion-resistant bolts maintain their strength in harsh conditions, ensuring reliable use for various applications. Their flat head design allows for a flush finish, enhancing the appearance of your projects. With a full-thread design, these bolts offer excellent tensile strength, making them easy to tighten and remove without slipping, providing you with convenience and efficiency in your work.

What We Like
Durable carbon steel material
Corrosion-resistant design
Flush flat head finish
Easy to tighten and remove
Variety of sizes included
#TOP 8

TERF M8 X 40mm Joint Connector Bolts Pack

TERF - Joint Connector Bolts - 001
M8 (8mm) X 40mm
TERF M8 X 40mm Joint Connector Bolts Pack Cover
TERF® M8 X 40mm Joint Connector Bolts M8 (8mm) X 40mm Barrel Bolts Hex Allen Key Socket Flat Head Furniture Joint Connector Bolt - Pack of 4

The TERF Joint Connector Bolts come in a pack of four, making it convenient for your projects. Each bolt is made from durable zinc plated steel, ensuring strength and longevity. With a size of M8 (8mm) X 40mm, these bolts are versatile for various applications, including furniture fixing and general engineering tasks. The hex socket head type allows for easy installation using an Allen key, providing you with a reliable solution for your DIY projects.

What We Like
Durable zinc plated steel
Pack of four bolts
Versatile for multiple uses
Easy installation with hex socket
#TOP 9

Drenky M8 Flat Head Furniture Bolts

PT0825-10
M8 X 25mm, 10 Pcs
Drenky M8 Flat Head Furniture Bolts Cover
Drenky M8 Furniture Bolts, Flat Head Furniture Screw M8 X 25mm Flat Hex Bolt 304 Stainless Steel Bolts Fully Thread Machine Screws 10 Pack Joint Connector Bolts

The Drenky M8 Bolts are crafted from 304 stainless steel, ensuring a smooth, burr-free surface that resists rust and corrosion. This makes them ideal for outdoor or wet environments, promising you a long service life. Their unique design features a round outer edge and a concave hexagonal shape, preventing scratches to surrounding parts during assembly. Additionally, the hexagonal design transmits torque uniformly, enhancing safety by preventing slippage in high vibration or load situations. These benefits provide you with reliable and aesthetically pleasing fastening solutions.

What We Like
Rust and corrosion resistant
Unique and safe design
High strength for durability
Wide application range
#TOP 10

sourcing map M10 Hex Head Screw Kit

a21031800ux0655
Silver
M10 x 40mm
sourcing map M10 Hex Head Screw Kit Cover
sourcing map M10 x 40mm Hex Head Screws Bolts, Nuts, Flat & Lock Washers Kits, 304 Stainless Steel Fully Thread Hexagon Bolts 4 Sets

The sourcing map Hex Screw Kit includes M10 x 40mm bolts, nuts, flat and lock washers, ensuring you have everything you need for your projects. The precise mechanical threads provide a strong grip, making installation easier and more secure. Crafted from 304 stainless steel, these fasteners resist corrosion and rust, ensuring durability in various environments. Their hexagonal design allows for easy installation with a wrench, making them ideal for both indoor and outdoor applications.

What We Like
Durable 304 stainless steel
Corrosion and rust resistant
Secure locking effect
Easy installation with a wrench
Versatile for various applications
Buying Guide Image
Editor's Notes

During our flat hex bolt research, we found 306 flat hex bolt products and shortlisted 10 quality products. We collected and analyzed 5,368 customer reviews through our big data system to write the flat hex bolts list. We found that most customers choose flat hex bolts with an average price of £6.82.

The flat hex bolts are available for purchase. We have researched hundreds of brands and picked the top brands of flat hex bolts, including Screws City, sourcing map, TOP-VIGOR, QiXinGYL, TERF. The seller of top 1 product has received honest feedback from 1,423 consumers with an average rating of 4.8.

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.