필수 정보
배송 방법:快递, 空运, 陆运, 海运
제품 소개
Three-piece expansion bolt (also known as four-piece expansion anchor, special expansion bolt for hollow bricks) is a heavy-duty expansion fastener. It is a special anchoring accessory designed for loose base materials such as hollow bricks, foam bricks, and porous bricks. It specifically solves the fixing problems of soft/loose base materials like hollow bricks, foam bricks, aerated blocks, and porous bricks. It can also be used for hard base materials such as concrete and solid bricks, and is known as the "nemesis of hollow bricks". It is mostly used for fixing light equipment on walls during decoration, such as bathroom hangers, storage racks, air conditioner indoor unit brackets, door and window frames, etc., to prevent ordinary expansion bolts from loosening and falling off in loose base materials.