Reddit mentions: The best shoulder screws

I agree; you definitely want to make sure to go in to a beam.

I would suggest finding some like this instead, with the solid ring. Either way though, please don't count on it for a full suspension.

Flooring

• KM Cape Doctor Maple 12mm Laminate (discontinued)
  
  
  Closet
  
  
• [Ikea Expedit (discontinued) - replaced with Kallax]
  (http://www.ikea.com/us/en/catalog/products/40275813/#/20275814)
  
  
• [1" 6061 aluminum rods, unpolished, extruded]
  (http://www.amazon.com/gp/product/B000H9JFR8/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1)
  
  
• [1" aluminum shaft collars]
  (http://www.mcmaster.com/#9946k24/=rjcdgv)
  
  
  Door
  
  
• [30x80" Oak Solid Core Door Slab]
  (http://www.menards.com/main/doors-windows/mastercraft-slab-doors/mastercraft-30-x-80-x-1-3-4-oak-solid-core-door-slab/p-1657282-c-12245.htm)
  
  
• [Door Hinges]
  (http://www.homedepot.com/p/Everbilt-4-1-2-in-Satin-Chrome-Commercial-Grade-Door-Hinge-20442/204760762)
  
  
• [Schlage Latitude Privacy Door Lever]
  (http://www.amazon.com/gp/product/B0046ZRI7S/ref=oh_details_o06_s00_i00?ie=UTF8&psc=1)
  
  
  Paint
  
  
• KILZ 2 Primer
  
  
• Behr Premium Ultra Pure White
  
  
  Lighting
  
  
• [TL90 Ceiling Flush Mount - Small]
  (http://www.1stoplighting.com/lighting/18-462-634-0-398776/Tech-Lighting_TL-90---Two-Light-Square-Small-Flush-Mount-700FM90S.htm)
  
  
• [TL90 - Large]
  (http://www.1stoplighting.com/lighting/18-462-634-0-308557/Tech-Lighting_TL-90---Two-Light-Square-Large-Flush-Mount-700FM90L.htm)
  
  
• [2GX7 4100k Bulbs]
  (http://www.1000bulbs.com/product/2798/FC13-2GX741OD.html)
  
  
• [G9 Halogen Bulbs]
  (http://www.1000bulbs.com/product/5113/Q-JCD40120G9.html)
  
  
• [Screwless Wall Plates (these are okay, a bit too retro for my liking but not bad enough for me to return)]
  (http://www.menards.com/main/electrical/wall-plates/rocker-gfci/1-gang-screwless-wall-plate/p-1403968-c-6479.htm)
  
  
  Desk
  
  
• [Linnmon High Gloss White 59x29 1/2" Table Top]
  (http://www.ikea.com/us/en/catalog/products/10251352/#/20251356)
  
  
• [Olov Table Legs (I do not recommend these, there's a rattle from the internal tensioning rods)]
  (http://www.ikea.com/us/en/catalog/products/10264302/)
  
  
  Hammock
  
  
• [Koch Forged Eye Screw - Small]
  (http://www.amazon.com/gp/product/B002T44T7A/ref=oh_details_o06_s00_i00?ie=UTF8&psc=1)
  
  
• [Eye Screw - Large]
  (http://www.amazon.com/gp/product/B002T44T8O/ref=oh_details_o07_s00_i02?ie=UTF8&psc=1)
  
  
• [Trek Light Double Hammock]
  (http://www.amazon.com/gp/product/B00857I7KK/ref=oh_details_o07_s00_i00?ie=UTF8&psc=1)
  
  
• [Trek Light Gear Go Anywhere Rope Kit]
  (http://www.amazon.com/gp/product/B005VDZE2U/ref=oh_details_o07_s00_i01?ie=UTF8&psc=1)
  
  
• [Black Diamond RockLock Screwgate Carabiner]
  (http://www.amazon.com/gp/product/B000LGJFYK/ref=oh_details_o07_s00_i03?ie=UTF8&psc=1)
  
  
  Total cost was USD 2197.67.

I don't see why a simple lag eyebolt screwed into each 4x4 wouldn't work.

Hell, just a hole drilled through the 4x4 with some rope through it would probably be just fine. It's not like a shed is particularly heavy, unless you're making a reinforced concrete bunker-shed.

Use something like this bolt to attach to the shed. Predrill a small hole into a stud and screw it in. Attach a tensioner like this one to the lag bolt then attach the cable to the tensioner.

As someone said previous, drill a hole slightly bigger than the cable you plan to use thru the post of the basketball hoop. Thread the cable thru and use one of these cable clamps on the back side to secure the cable from slipping back out of the post.

Tighten the tensioner by turning the center section while keeping the two end hooks from turning. The two hooks are opposite threads so turning the center will draw the ends in.