Details and measurements follow the specified product table in the manufacturer's product overview

Source: Treston product catalog (official product list)

Used for connecting fine and very fine-stranded round or sector conductors

The documentation explicitly mentions use on surfaces such as rubber

Kompatible enheder: Assorter 80

Kabelsko CU fortinnet UL 25mm²-Ø12 EURO-serie insp. Hul Unit(s):Pcs Details and measurements follow theProduct Overview This cable lug, ICR2512SL, is a straight tubular (R series) copper cable lug with an inspection hole. The description states the material as Cu HCP 99. 9% (copper) and that the surface is electro galvanized electro tinned. The product is listed for a conductor cross section of 25 mm and screw thread M12. Material and Construction The ICR2512SL is manufactured from Cu HCP 99. 9% (copper) and is electro tinned as specified in the