Central anchor support for ST-350 handrail Material: Machined stainless steel Quality: AISI 304 Finish: Gloss (see satin finish Description: Support for mounting wall handrails. The support is made up of a Ø 70 mm embedded base for fixing to the wall and a solid 8 mm rod at 90º that is anchored to the wall using chemical anchoring. Anchoring to the handrail is done by welding or the drill that the rod has.