Mobile Home Part Set of 4 Auger Anchors; 8 Tie Down Strap, & Bolts Set includes: 4 - 30" Double Disk Anchor, 3/4" Shaft, 30" Double, 4" Disk Earth Anchor With Double Fastening And Tensioning 4  8' Tie Down Strap with Frame Clamp. 4 - Mobile Home Anchor Bolt w/Nut Knurled bolt increases friction between strap and bolt shaft for greater strength than a smooth bolts.Slotted for use with strap. Designed To Be Augured Into Extremely Hard Soil Where 6" Anchors Will Not Suffice. Recommended For Soil Classes 2 & 3. Contact Your Local Building Inspector For Your Local Code On Anchors. We may require signature on some orders. This helps insure that the package makes it to you.