A tightening aid for joining and bonding building materials.
The wing nut has a non-slip groove and is designed to provide extra strength.
Features a slide link link with the screw part.
Holes for hanging
●建材等を接合、接着する際の締め付け用補助具です。蝶ナットには滑り止め用の溝が付いており、とても力が入りやすい設計です。ネジ部連動スライドコマ採用。吊り下げに便利な穴開き