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I purchased 3 sets of "Screwits". They are made in Australia, and shipping
to the USA doubles the cost for one set. My thinking, by buying 3, was to save on shipping and re-distribute them to friends locally. The Screwits website erroneously claims they have an anodized finish. Since all of the screw-in type anchors I've ever seen are made of steel (including the "Screwits" as it turns out) I was thinking the Screwits must be made of some super tough aluminum alloy - - as anodizing is an aluminum (and alloys) surface treatment, not done to steel. The "Screwits" look to be cadmium plated steel. The screw portion of the anchor is relatively small and the shaft is also thin compared to other screw anchors I have. This saves weight, but detracts from holding power. The weight savings and smaller size, would make it possible to pack the Screwits into many gliders. Bottom line, there's no way I would trust Screwits to hold my glider down in a "blow". There are many other screw-in anchors available in this country that less expensive and more robust (though at a slight weight penalty). On the flip side, the Screwits are nicely made, they come in kit w/ handle to turn in or remove the anchors, and they will do the job in some soil types. If they are in your glider, they'll work a lot better than heavier ones you left in the trailer. bumper "user" wrote in message ... Try http://www.screwits.com Small, light and they work ! The site has a comparison of all the tie downs available wrote: A very cheap solution that I use is to buy 2 18" long 2x2 steel angle iron. Cut 45 degree edges at one end to make a point (the metal supplier that you buy the angle from can do this). Drill a 0.5" at the other end. Drive the angles into the ground at a 45 degree angle with a sledge hammer at a place where the tie down rope will be at right angles to the stake. Total cost: $15-20, not including the sledge. You need as much surface area as possible for maximum hold strength. Consequently I don't favor any kind of tie-down that looks like a tent stake or an over-sized nail. It is important that the tie-down rope be at right angles, or as close to it as possible, to maximize this surface area. I also got a couple of cheap, small plastic buckets to put over the tie-down so I wouldn't stub my toes or drop a wing on them. If you want a permanent high-strength tie-down get 2 or 3 used tires, some cable or chain, and a shovel. Attach the chain to each tire and bury the tire as deep as you can. The tires are free, the chain about $1 a foot, and you probably already have a shovel. Tom Seim |
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