韩国三级中文字幕hd_av在线电影网站_5g在线视频_99国模沟沟茂密的黑森林 - 国产精品社区

The Avdel Rivscrew? Speed Fastening? system is a threaded, removable speed fastener that combines the speed of rivet placement with the benefits of being able to remove and re-fasten. Using a Rivscrew rivet removes the need for costly tapping or thread forming operation whilst creating a higher vibration resistant ‘thread lock’ compared to standard screws.