Best Metric Lag Bolts of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 1 Feb 2025

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Metric Lag Bolts are a type of fastener commonly used in construction and woodworking projects. These bolts are designed to provide a secure hold in materials such as wood, concrete, and metal. They feature a coarse threading and a hexagonal head for easy installation with a wrench or socket. Metric Lag Bolts are available in a range of sizes and lengths to suit various applications, and their high-strength steel construction ensures long-lasting durability. These bolts are a reliable choice for anyone seeking a strong and stable fastening solution.

At a Glance: Our Top Picks

M8x100mm Torx Hanger Bolts - 10 Pack Cover #TOP 1
M8x100mm Torx Hanger Bolts - 10 Pack
ftb score rating icon 9.8
M10 A2 Stainless Steel Coach Screws Cover #TOP 2
M10 A2 Stainless Steel Coach Screws
ftb score rating icon 9.7
M8 A2 Stainless Steel Coach Screws 70mm Cover #TOP 3
M8 A2 Stainless Steel Coach Screws 70mm
ftb score rating icon 9.5

Top 10 Metric Lag Bolts

#TOP 1

M8x100mm Torx Hanger Bolts - 10 Pack

P-THB-M8X100-ZN-P10
Zinc
M8x100
M8x100mm Torx Hanger Bolts - 10 Pack Cover
M8x100mm Torx Hanger Bolts, Double Ended Dowel Screws, Wood Screws, Wall Fixing, Zinc Plated Headless Fastener with Hexagon Part and T25, Machine Metric Bolt and Lag Threaded Wood Screw (10 Pack)

The Keple Hanger Bolts are designed for easy installation into wood and other materials. Their headless design features a Torx star pattern tip, allowing you to securely fasten them with a wrench. The bolts are made from high-quality zinc plated alloy steel, ensuring they are durable and resistant to rust. With a machine-threaded body and wood-threaded tip, these bolts provide a strong hold for various applications, such as mounting TV racks or shelves, making them a versatile choice for your projects.

What We Like
Durable zinc plated construction
Easy installation process
Compatible with various materials
Secure fastening with wrench
Versatile for multiple applications
#TOP 2

M10 A2 Stainless Steel Coach Screws

A2M10CSC
Stainless Steel
M10 x 60mm
M10 A2 Stainless Steel Coach Screws Cover
M10 A2 Stainless Coach Screw Hex Hexagon Head Wood Screws Lag Bolt 10mm DIN 571 by MultiScrew - All Lengths - Corrosion Resistant (10, M10 x 60mm)

The MultiScrew Coach Screws are 10mm diameter stainless steel screws designed for heavy-duty applications. Their corrosion-resistant A2-70 stainless steel construction allows you to use them outdoors and in moist environments without fear of rust. Ideal for timber-to-timber connections, these screws provide a secure fixing with high pull-out resistance, ensuring stability in your projects. Available in various lengths, they offer flexibility to suit different needs, making them a reliable choice for construction and landscaping tasks.

What We Like
Corrosion resistant stainless steel
High pull-out resistance
Multiple length options available
Suitable for outdoor use
Versatile for various applications
#TOP 3

M8 A2 Stainless Steel Coach Screws 70mm

A2M08CSC
Silver
M8 x 70mm
M8 A2 Stainless Steel Coach Screws 70mm Cover
M8 A2 Stainless Coach Screw Hex Hexagon Head Wood Screws Lag Bolt 8mm DIN 571 by MultiScrew - Corrosion Resistant (5, M8 x 70mm)

The M8 Coach Screws by MultiScrew are robust, corrosion-resistant fasteners designed for heavy-duty timber applications. Made from A2-70 stainless steel, these screws can be safely used outdoors, ensuring durability even in moist conditions. Their deep single thread offers a secure fixing, preventing pull-out, which is ideal for various construction and landscaping projects. With a diameter of 8mm, these screws are versatile, suitable for timber-to-timber and metal-to-timber applications, making them a reliable choice for your projects.

What We Like
Corrosion-resistant stainless steel
Suitable for outdoor use
High pull-out resistance
Versatile applications
Deep single thread design

Hippo Hardware M10 Stainless Steel Coach Screws

Silver
M10 X 150mm
Hippo Hardware M10 Stainless Steel Coach Screws Cover
Hippo Hardware M10 (10mm X 150mm) Coach Screws A2 Stainless Steel Hex Head Lag Bolts Wood Screw DIN 571 (Pack of 3)

The Hippo Hardware M10 Screws are designed for robust and reliable fastening. With a thread diameter of 10mm, these screws provide a strong grip, ensuring your projects are secure. The hexagon head allows for easy driving, giving you better control while working. Made from A2 stainless steel, they offer excellent resistance to corrosion, making them ideal for both indoor and outdoor use. The metric thread ensures compatibility with various materials, making these screws a versatile choice for your construction needs.

What We Like
High strength and durability
Corrosion-resistant material
Easy to drive with hex head
Versatile for various applications
#TOP 5

Bolt Base 6mm A2 Stainless Steel Coach Screws

BOB681
Silver
Bolt Base 6mm A2 Stainless Steel Coach Screws Cover
Bolt Base 6mm A2 Stainless Steel Coach Screws Hex Head Lag Bolts Wood Screw Bolt DIN 571 M6 X 35-30

The Bolt Base Coach Screws are crafted from corrosion-resistant A2-70 stainless steel, ensuring durability and longevity in various applications. With a 6mm metric thread, these screws provide a secure fit for your projects, giving you peace of mind. At a length of 35mm, excluding the head, they are suitable for a range of woodworking tasks. However, please note that these screws are not suitable for replacing high tensile fasteners, making it essential to choose the right product for your needs.

What We Like
Corrosion-resistant material
Secure fit for projects
Suitable for woodworking tasks
Durable construction
#TOP 6

M12 A2 Stainless Steel Coach Screws

A2M12CSC
Silver
M12 x 50mm
M12 A2 Stainless Steel Coach Screws Cover
M12 A2 Stainless Coach Screw Hex Hexagon Head Wood Screws Lag Bolt 12mm by MultiScrew® (10, M12 x 50mm)

The MultiScrew Coach Screws are made from corrosion-resistant A2-70 stainless steel, making them perfect for outdoor use where moisture is present. Their traditional heavy-duty design ensures secure fixing for timber to timber applications, as well as attaching ironmongery to timber. With a deep single thread, you benefit from high pull-out resistance, ensuring your projects are stable and secure. Available in various lengths, you can easily select the size that suits your needs, providing flexibility for different construction tasks.

What We Like
Corrosion resistant stainless steel
High pull-out resistance
Various lengths available
Heavy-duty design

M6 x 20mm Bright Zinc Plated Coach Screws

A2Z1610_M6x20mm_PK10
Silver
M6x20mm
M6 x 20mm Bright Zinc Plated Coach Screws Cover
(6mm) M6 x 20mm Wood Screw Hexagon Head Coach Screw Lag Bolts Bright Zinc Plated - DIN 571 - (Pack of 10pcs)

The A2Z FAST Coach Screws are designed for robust construction tasks. With a thread diameter of 6mm, these screws provide a secure grip, ensuring your materials stay firmly in place. The 20mm length is ideal for a variety of wood applications, making them versatile for both professional and DIY projects. Made from bright zinc plated material, these screws offer excellent resistance to corrosion, enhancing their durability and longevity.

What We Like
Durable bright zinc plating
Robust 6mm thread diameter
Versatile 20mm length
Pack of 10 screws
#TOP 8

A2 Stainless Steel Coach Screws, 10 Pack

A2 Stainless Steel Coach Screws, 10 Pack Cover
A2 Stainless Steel Coach Screws Hex Head Lag Bolts Wood Screw DIN 571 M10 x 150-10 Pack

The Bolt Base Coach Screws are made from corrosion-resistant A2-70 stainless steel, ensuring durability in various conditions. With a DIN 571 standard, these screws are reliable for both internal and external applications. The M10 metric thread provides a secure fit, making installation straightforward for your projects. At 150mm in length, they offer versatility for different uses, giving you confidence that your fixtures will remain strong and stable over time.

What We Like
Corrosion resistant material
Reliable DIN 571 standard
Secure M10 metric thread
Versatile 150mm length
#TOP 9

A2 Stainless Steel Coach Screws 50mm Pack

A2 Stainless Steel Coach Screws 50mm Pack Cover
A2 Stainless Steel Coach Screws Hex Head Lag Bolts Wood Screw DIN 571 M10 x 50-50 Pack

The Bolt Base Coach Screws are constructed from corrosion-resistant A2-70 stainless steel, making them an excellent choice for both internal and external applications. With a DIN 571 standard, these screws ensure reliable performance in various projects. The M10 metric thread provides a secure fit, enhancing the stability of your constructions. At a length of 50mm, they are versatile enough for a range of uses, giving you the confidence to tackle different tasks with ease.

What We Like
Corrosion resistant material
Suitable for indoor and outdoor use
Reliable DIN 571 standard
Secure M10 thread
Versatile 50mm length
#TOP 10

M8-8mm Hexagon Head Lag Bolts 10 pcs

SS8
DIN571-M8x60-10
Pack of: 10
M8 x 60mm
M8-8mm Hexagon Head Lag Bolts 10 pcs Cover
M8-8mm HEX Hexagon Head Coach Screws (10 pcs) Lag Bolts Wood Screws Zinc DIN 571 60mm (2 1/2")

The M8 Lag Bolts are designed for heavy-duty applications, offering a robust solution for attaching lumber to lumber or masonry. With an 8mm diameter shank, these screws require a pilot hole, ensuring you can support heavier loads without splitting the wood. The hexagon head allows for increased torque during installation, providing convenience and ease of use. Made from zinc-plated steel, these screws are durable and comply with DIN 571 standards, making them ideal for deck and dock construction.

What We Like
Heavy-duty construction
Hexagon head for extra torque
Zinc plated for durability
Suitable for wood and masonry
Pre-drilling reduces splitting
Buying Guide Image
Editor's Notes

During our metric lag bolt research, we found 97 metric lag bolt products and shortlisted 10 quality products. We collected and analyzed 4,970 customer reviews through our big data system to write the metric lag bolts list. We found that most customers choose metric lag bolts with an average price of £11.31.

The metric lag bolts are available for purchase. We have researched hundreds of brands and picked the top brands of metric lag bolts, including Keple, MultiScrew, Hippo Hardware, Bolt Base, A2Z FAST. The seller of top 1 product has received honest feedback from 2,142 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.