M16 Hex Bolts (Part Threaded)

Find a secure and reliable fastening with our M16 hex bolts DIN 931. Crafted to meet the rigorous demands of construction, machinery, and automotive industries, these M16 hex bolts are an optimal choice. Featuring a robust thread diameter of 16mm and a head diameter of 24mm, these bolts exhibit exceptional strength and durability, ensuring quality performance in an array of applications.

M16 Bolt Dimensions

  • Thread Diameter: 16mm
  • Thread Pitch: 2mm
  • Head Width/Socket Size: 24mm
  • Head Depth: 10.29mm (max)
  • Thread Length ≤125mm: 38mm (min)
  • Thread Length 125mm - ≤200mm: 44mm (min)
  • Thread Length >200mm: 57mm (min)
  • Head Type: Hexagon

16mm Hexagon Bolts DIN 931

DIN 931 16mm hex bolts feature a threaded portion to be fastened with a nut. These bolts conform to DIN 931 standard and have a shank design, increasing their load-bearing capacity and giving them enhanced stability in challenging environments. 

M16 Hex Bolts in Stainless Steel

Our M16 hex bolts are manufactured from A2 stainless steel, renowned for its outstanding corrosion resistance. This makes them the go-to choice for outdoor projects and applications subjected to high levels of moisture, ensuring long-lasting performance and durability.

Shop DIN 931 stainless steel hex bolts here.

19 products


M16 Hex Bolts – Stainless Steel (DIN 931 Part Thread) | Fixabolt®

Big bolts for big jobs.

Fixabolt® M16 hex bolts are designed for the kind of jobs where smaller fixings just won’t cut it. These 16mm stainless steel bolts are made to DIN 931 spec, with a partially threaded shank that boosts load-bearing capacity and reduces the risk of shearing under pressure.

Whether you're anchoring structural steel, joining large timber sections, or assembling machinery, M16 bolts are built for high-strength connections in tough environments. The hex head is easy to tighten with standard spanners or sockets, and the stainless steel construction gives you lasting corrosion protection.

Key Specifications:

  • Size: M16 (16mm)
  • DIN 931 (part-threaded)
  • Hex head – install with socket or spanner
  • Length: From 50mm to 300mm

Each bolt is precision-made with clean threads and a smooth shank for a secure and professional finish.

What Are M16 Hex Bolts Used For?

When you're working on critical structural components, M16 hex bolts deliver strength you can rely on.

Why Choose Fixabolt®?

✔ Certified to DIN 931 standards

✔ Stainless steel A2 & A4 available for any environment

✔ UK-stocked for fast delivery

✔ Quantity-based pricing for trade customers

✔ No fuss, just quality fixings

Don’t forget your matching M16 nuts and washers, available on the same page for a complete fixing solution.

Fixings that hold. Fixings that last. Fixabolt®.