J-System hex bolt DIN933 8.8 ZN M10 x 120, 50 pieces

Hex bolts are widely used in construction, industry, and installation and assembly, wherever parts need to be held firmly together with a nut and spanner or socket. On this page you can read what to look for when choosing a bolt like this one.

What does DIN933 mean for a hex bolt

DIN 933 is the standard for hex bolts with thread up to the head. This differs from DIN 931, where part of the shank remains unthreaded. A fully threaded bolt is useful if you want to fix the bolt at multiple lengths, or if the nut must be able to tighten close to the head. Check beforehand whether this suits your construction.

Strength class 8.8 and zinc-plated finish

The designation 8.8 indicates the strength class of the steel. This is a commonly used class for general construction and assembly applications. The galvanically zinc-plated layer (ZN) provides basic protection against corrosion, particularly suitable for dry and covered environments. For outdoor applications with high moisture or aggressive conditions, it is better to choose a stainless steel version, such as A2.

This is how you choose the right length and size

Measure the total thickness of the parts to be joined and add the thickness of the nut and any washers. Also allow for a few thread pitches protruding beyond the nut. A hex bolt M10x120 is intended for connections with a relatively large clamping length. Preferably use a matching nut and washer with the same strength class and finish.

Frequently asked questions

What does M10x120 mean for a bolt?

M10 is the thread diameter of 10 mm, and 120 is the length of the bolt in millimeters.

How many bolts are in a package?

This hex bolt M10x120 is supplied per 50 pieces.

Is a galvanized bolt suitable for outdoor use?

Galvanizing provides basic protection against rust. For long-term use outdoors or in damp environments, stainless steel is usually the better choice.