Express Nails (Spring Anchors) Material:Steel Size:5*30,5*50,6*30,6*40,6*80, 8*70,8*90,8*180 Finish:Yellow/White ... Express Nails (Spring Anchors) Material:Steel Size:5*30,5*50,6*30,6*40,6*80, 8*70,8*90,8*180 Finish:Yellow ... impact loads. And its greattensile strength, it unusually resistant to vibration loads.2.The anchor is resistant to chemicals, fungus, moisture ...