The trees will be able to recover from the bolts installation. To start viewing messages, select the forum that you … Eye-bolts do pose some threat to tree safety but far less than “choking” it with straps does. 1" diameter by 12" long Eyebolt. You already know that the blood layer, the cambium, is directly under the tree bark so you might think that this would be a problem but it really isn’t. For instance, for a 50-inch swing, space the hangers 52 to 54 inches apart. Decided to check McMaster-Carr. ie Bacteria from the bolts. Another place I found with the part as described was Eastern Marine, where it would also have been $28 delivered. 1/2 in. They're used as anchor eye bolts for routing or tying down wire and cable. Zinc-Plated Eye Bolt with Nut This eye bolt boasts a formed circular eye This eye bolt boasts a formed circular eye at the non-threaded end and a blunt machine screw thread on the other end. the upshot is- the less slack in your hammock, the more horizontal force you are putting on each eye bolt- at a 30 degree angle from the horizontal, you're actually putting about 165 lbs of force on each eyebolt. Great for light-duty applications, it is made with steel for strength and is … According to the hammock calculator I need to install eye bolts 11.3 feet high. Eye bolts cause minimal short term damage and the tree will continue to grow unaffected. I finally got around to trying a hammock. If this is your first visit, be sure to check out the FAQ by clicking the link above. I wanted the removable eye bolts, so, went searching. This will aid uniform weight distribution and also prevent the chains from rubbing against the swing when in motion. The 12" does not include the eye, but leave enough space to get the nut/washer on and I like to see 1/2" or so sticking out because you can tell visually from a distance that the nut is not just barely holding on. You may have to register before you can post: click the register link above to proceed. These Stainless Steel Eye Bolts are useful for attaching tree swings to branches, building hammocks or other related tree house projects. Eye bolts have a shank for anchoring to structures or equipment and a ring for attaching rope, hooks, or other hardware. When you install an eye hook you are essentially drilling a hole into the tree. Muzata 316 Stainless Steel Eye Shape Screws, Heavy Duty Screw Eyes for Metal Hook, Wood Terminal Ring Eyelet Hooks, Hammock Stand, Self Tapping Screws, 3.5 Inches M6 Eye Bolt … Permanent Eye Bolts for Hammocks? The eye bolts, screws eyes, or hooks should be installed 2 to 4 inches wider than your swing’s length. x 8 in. I have seen bolts through many years of service and nothing with the installation has ever cause the tree to fail. ZUSFUL 12-Pack 304 Stainless Steel Screw Eyes, Heavy Duty Screw in Eye Hooks Ring for Hammock Stand, Yoga & Brazilian Hammocks, Swing Chair, Indoor & Outdoor, Self Tapping Screws, 3.2 Inches Eye Bolt 4.7 out of 5 stars 109 As an arborist we do this all the time to strengthen the tree with bad form. Lift eye bolts are rated for vertical lifting up to their specified capacity. at tighter angles, you can easily put up to 10 times your bodyweight of force on each eyebolt! From Princess Auto, a single bolt plus shipping would have been $28. Go right a head if it is your trees. There is a small chance that a guy with a chainsaw could hit them many years down the road. The FAQ by clicking the link above to proceed above to proceed angles, you can post click! Force on each eyebolt FAQ by clicking the link above through many years of service and nothing with the as... 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