WAKI No plug screw seat WF-310 4X25 11 pieces WF-310 1 PK

Catalog number: WF-310 Features: ●A lightweight ruspart no-plug screw that can be used when attaching equipment to concrete. Specifications: ●Pre-drill diameter (mm): 3.4-3.5 Material/Finish: ●Iron ruspart Caution: ●If the screw becomes ineffective due to overtightening, remove the screw and use the putting method. ●When using a lightweight hammer drill, the pilot hole diameter may be larger than the indicated dimensions and the screw may spin freely, so please check in a preliminary test that the screw does not spin freely before using.