8mm expansion bolt A2 steel

The 8mm expansion bolt A2 steel is one of our bestsellers. On the one hand, it is mainly bought by speleologists. On the other hand, it is bought by developers of alpine climbing routes who want to work with 8mm. This expansion bolt is suitable for all our 8mm bolt hanger made of A2 steel.
The product has the following features. Firstly, the thin diameter of only 8mm. This saves drilling time, battery life and weight. Secondly, it is made of A2 steel. This makes it a heavy-duty stainless steel M8 anchor with good corrosion resistance. Thirdly, you save approx. 15% on the price compared to A4 steel expansion bolt.

Areas of application 8mm expansion bolt A2 steel

• Development of alpine routes
• Speleology / Speleology
• Hand drilling
• Expeditions
• naturally also suitable for fastenings of all kinds in concrete, solid bricks, etc. in the building trade and household!

This bolt should only be used in the Alpine region. We recommend it above all for granite, gneiss and slate. Due to the chemical composition of limestone, we recommend A4 steel materials for this type of rock. With A2 steel, a significantly reduced service life must be expected.

Properties 8mm expansion bolt A2 steel

• Diameter: 8mm
• Lengths: 75mm or 90mm
• Material: A2 steel (AISI 304)
• Weight: 35 grams or 48 grams
• Recommended torque: 20 Nm
• Suitable wrench: 13 mm
• suitable drill: 8mm

Correct drill hole cleaning 8mm expansion bolt A2 steel

When settingexpansion bolt , we recommend that everyone simply clean the drill dust. On the one hand, this can be done with a drilling hole blow out pumb can be used. On the other hand with a hole brush. For example, with the Fischer brush set. If you want to work cleanly, use both tools once each.

Use the right drill bit

A guaranteed round hole is very important for bolts with small diameters. This is the only way the 8mm expansion bolt A2 steel can be driven in properly or hold properly without “wandering”. We therefore recommend an SDS drill bit with a PGM test mark for a guaranteed “cutting edge corner dimension”. For example, the Fischer SDS Quattric drill bit.

Correct bolt hanger for 8mm expansion bolt A2 steel

Only A2 steel bolt hanger should be mounted on A2 steel bolts. This avoids galvanic corrosion. This occurs when different precious metals come into contact. In other words, do not fit zinc plated bolt hanger, A4 steel or fixed PLX lugs to this heavy-duty M8 anchor!

A2 Steel Materials

The service life of 8mm expansion bolt A2 steel is shorter than that of A4 steel expansion bolt. If you want to bolt a climbing route, please take this into account. This is because the necessary (earlier) renovations will have a negative impact on the rock. For example, visually due to the many bolts that have been hammered in. On the other hand, the respective fixed point also costs more in total. This is because from the 1st climbing route renovation at the latest, the total cost is more expensive than an A4 steel product installed in the same way. We do not allow ourselves to make ethical judgments about what is good and bad. From a technical point of view, however, A4 steel products are clearly preferable if you want to set up a climbing route with expansion bolt .

More details on the topic: Steel qualities at expansion bolt and glue in bolt

Important information for climbing garden owners

The 8mm expansion bolt A2 steel does not meet the standards for public climbing areas. Consequently, this must be taken into account when constructing and renovating climbing areas. Avoid legal risks and follow EN standard 959 or UIAA standard 123 for expansion bolt and use at least 10mm expansion bolt. These have the necessary breaking loads or achieve the necessary holding values in the pull-out tests.

Consequently, this heavy-duty M8 anchor must not be used during the strictly recommended annual climbing area maintenance. In short. If you want to avoid legal risks, work with 10mm expansion bolt and standardized bolt hanger or glue in bolt.

 

Link tip: In our Bolting Know How section there are many interesting articles about establishing a climbing route.

Weight	N/A
Dimensions	N/A
Marke	bolting.eu
Bohrhaken Dimensionen	8 x 75mm, 8 x 90mm
Durchmesser	8mm
Einbohr Gewicht	very light
Einsatzgebiete	Alpine routes, Big Wall Climbing, Expeditions, Hand drilling, Speleology, Speleology
Korrosionsbeständigkeit	normal
Routen Beanspruchung	low
Stahlqualität	A2 steel / AISI 304(L)
weitere Eigenschaften	bolting.eu Bestseller, great price – performance ratio, Made in Europe