美國(guó)PennEngineering發(fā)表PEM® S-RT™自鉚旋轉(zhuǎn)拉帽 具簡(jiǎn)易鎖固及抗震防松性能

　　美國(guó)PennEngineering近期發(fā)表全新PEM® S-RT™自鉚且可自由旋轉(zhuǎn)的拉帽，其修正過(guò)的螺紋角度可以讓所搭配的緊固件件鎖固更輕松，在薄板金組合上也有優(yōu)異的抗震防松性能。修正過(guò)的螺紋樣式讓所搭配的緊固件工件可以在接合過(guò)程中仍能自由旋轉(zhuǎn)直至夾緊負(fù)荷產(chǎn)生。

　　施加的夾緊負(fù)荷與防松拉帽的抗震特點(diǎn)相互配合，把緊固件妥當(dāng)穩(wěn)固地鎖在定位。相較于傳統(tǒng)拉帽，其可產(chǎn)生優(yōu)秀和穩(wěn)定的接合鉗緊力。

　　PEM S-RT自鉚拉帽安裝在薄度介于.030”/0.8mm的鋁制或鋼制板金，是永久型安裝部件。一旦安裝后，讓緊固件嵌入的主金屬板金背部會(huì)呈現(xiàn)平面狀態(tài)，組裝面也會(huì)呈現(xiàn)平面狀態(tài)，因此適合用在板金對(duì)板金的接合應(yīng)用。

　　New PEM® S-RT™ Self-Clinching Free-Running Locknuts with Modified Threads Enable Easier Tightening of Mating Screws and Vibration-Resistant Locking Performance

　　New PEM® S-RT™ self-clinching free-running locknuts from PennEngineering® feature a modified thread angle enabling easier tightening of mating screws and superior vibration-resistant locking performance in thin metal assemblies. The modified thread formation allows mating screws to spin freely during the attachment process until clamp load is induced during the screw-tightening process.

　　The applied clamp load then engages the locknut’s vibration-resistant locking feature, which securely and reliably locks the screw in place. Compared with traditional locknuts, excellent joint clamp load remains consistent, even after many on/off cycles.

　　PEM S-RT self-clinching locknuts install into aluminum or steel sheets as thin as .030”/0.8mm and become permanent parts of an assembly. Upon their installation using a PEMSERTER® or other standard press, the back side of the host metal sheet for screw insertion will be flush or sub-flush and the assembly side will be flush or sub-flush ideally suiting sheet-to-sheet attachment applications.

　　These carbon steel locknuts can be specified with thread sizes from #4-40 through 5/16-18 and M3 through M6 and in a variety of shank lengths. Zinc plating finishes are available in standard colorless or optional yellow.