Collection: Stainless Steel Through Bolts

Our A4 stainless steel through bolts are engineered to provide exceptional performance and durability for a variety of construction applications. Certified to European Technical Assessment (ETA) Option 1 standards, these through bolts are designed for secure and reliable anchoring in concrete.

A4 Stainless Steel Through Bolts

Manufactured from A4 stainless steel, our through bolts offer marine-grade corrosion-resistance and are able to withstand the harshest environments, including in salt water. This makes them perfect for both indoor and outdoor use.

ETA Option 1 Through Bolts

Our through bolts provide a secure and robust connection for your structural elements. The ETA Option 1 certification guarantees that these bolts meet stringent European Technical Assessment (ETA) performance standards, ensuring reliability in critical applications.

Versatile Applications

Whether you are securing steel columns, beams, or heavy machinery, A4 stainless steel through bolts are versatile enough to handle various load conditions.

Easy Installation

Designed for ease of use, through bolts can be quickly installed by drilling a hole through the material and into the concrete, inserting the bolt, and tightening it for a strong and secure connection.

Buy A4 Stainless Steel Through Bolts

Explore our selection of A4 ETA option 1 through bolts in stainless steel. Perfect for long-lasting, reliable connections in your construction projects.

13 products


Through Bolts – Stainless Steel Heavy-Duty Anchors | Fixabolt®

Concrete fixings that hold. Fast, reliable, and built to last.

Fixabolt® through bolts are high-performance expansion anchors designed for fixing heavy loads into concrete, brick, or solid masonry. Ideal for structural steel, brackets, railings, baseplates, and industrial installations, these through bolts expand once tightened to create a secure mechanical hold inside the substrate.

Supplied in stainless steel for corrosion resistance and long-term durability, these fixings are trusted by builders, fabricators, and installers across the UK.

Key Features

  • Fixing Type: Through bolt / expansion anchor
  • Material: A4 (316) stainless steel – corrosion-resistant and marine-grade
  • Installation: Pre-drill the hole, insert the bolt through the fixture, and torque to expand
  • Sizes Available: M8 to M16 diameters
  • Lengths: 75mm to 145mm
  • Application: Concrete, brick, and solid block only

Tested and trusted for structural and permanent fixings.

Where Through Bolts Are Commonly Used

Fixabolt® through bolts are ideal for:

  • Fixing steel baseplates and posts to concrete
  • Installing balustrades, railings, and handrails
  • Structural supports, beams, and heavy brackets
  • Machinery mounting and warehouse racking
  • External steel fixings in corrosive or marine environments (A4)

Because the fixture can be in place during installation, through bolts save time on site and allow precise alignment before tightening.

Why Choose Fixabolt® Through Bolts?

✔ A4 stainless steel for maximum corrosion protection

✔ Fast installation with secure mechanical expansion

✔ Suitable for cracked or non-cracked concrete (verify with specs)

✔ Ideal for structural and exposed applications

✔ Reliable UK-based service with fast shipping

✔ Bulk pricing available for trade and site quantities

Fixings that hold under pressure. Fix it with Fixabolt®.