Application:Be sure to measure the length of old screws before purchasing trampoline screws. (Refer to Figure 2)Bolt Length 3"Nut Height 0.2"Black Gap Spacer Height 0.3"Available Bolt Length 2.5"The trampoline screws are compatible with many different trampoline brands. The installation of long screws on the trampoline can make the trampoline more stable and not easy to shake. Trampoline Replacement Screw Parts, Trampoline Bolts And Nuts Suitable for Large Trampolines and Small Trampolines Jump Stability Tool.Package Includes: 12 x Trampoline Screws, 1 x open wrench.Material: galvanized steelScrew diameter(approx): 6mm/0.24inchTotal length(approx): 77mm/3 inchFeature:Highly resistant against turning, preventing the lock nuts from weakening and loosening under vibration and torque which reduces the strength of hold. Guaranteed to stay intact and in firm hold making virtually indestructible.Compared with the bolt heads of other brands of trampoline screws, the square shoulder underneath the rounded head is unique because this design can resist rotation when the nut is removed or tightenedNote:Nylon Lock Nuts Use the matching wrench to tool to screw in.