How to choose correct climbing wall bolts?

We find that many of our customers have questions when it comes to choosing Bolts for their climbing walls. 

Not quite sure which bolts are the best for your project?

Don’t worry. We have summarised answers to this question.

To facilitate comparison, we have included all the relevant information in the table below.

If there is any other point that you are concerned about, don’t hesitate to contact our sales: sales@rmcindustry.com, we would be glad to be helpful. 😊

Bolts Name	Raw Material	Class Level- This represents how strong the socket screw is.	Finishing	Application	Pictures	What type T-Nuts are used together with this bolt?	Note
M10 Bolts	Carbon Steel	8.8	Zinc Plated	Indoor Climbing Wall projects, such as climbing gym;  home climbing wall	Bolts for indoor climbing walls	M10X12X25 Round Base T-Nuts; M10 Rectangular Base T-Nuts	Standard: GB70.1. Sales Record: Poland, Netherlands, France, Latvia, Germany, Malaysia, Philippines, etc.
3/8”-16 Bolts	12.9	Alloy Steel, Cr40	Black Oxide	Indoor Environment	Strongest 3/8″ Bolts for climbing wall building	3/8″  Screw-in T-Nuts	The black Oxide does not have the same anti-corrosion ability as zinc plated or stainless steel, so this type is not recommended for outdoor use where high Corrosion protection capacity is required.
3/8”-16 Bolts	12.9	Alloy Steel, Cr40	Geomet 500A	Outdoor, indoor use	Strong Bolts for outdoor climbing wall projects	Rectangular Base  3/8″ T-Nuts, UNC3/8″ Round Base 3 holes T-Nuts	Geomet offers much better Anti-corrosion performance than zinc plated. So it would be a perfect choice if you would like to have a very strong bolt with great Corrosion resistance.
DIN912 M10 or DIN 912 3/8″ Bolts	/	Stainless Steel 304/316	Polishing, Plain	Outdoor projects	Stainless Steel Bolts used to fix climbing holds to the wall	Stainless steel T-Nuts.	The stainless steel material is not as strong as Alloy steel.