How to Make a Security Bolt for a Lean On

Step-by-Step Guide

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   Step 1: .This is a sketchy plan of a cottage.The lean on is a tiny one.It's a shower

   That strange R angle on the rim of the door is the locking ring where the bolt engages.
   
   Then there´s an "OPTIONAL WALL" on which the sheath for the bolt is fixed by masonry.The sheath goes thru the wall of the cottage.In the interior you you can see the handle of the bolt sticking out of the wall, The bolt consists of three elements, like any ordinary bolt:
   A strong rod of iron with a right angle (handle part),and a pointed tip on the other end: that´s the BOLT itself.
   
   A SHEATH made of square tubing thru which the rod will slide.Must be square to easily add any welded fixings,masonry or carpentry and also to lay even on flat surfaces.
   
   The fixing of the sheath depends on the materials the main building and the lean on are made of: fixings for masonry or fixing with screws, bolts and nuts in case you´re using wood planks or metal sheets.If your lean on is L shaped plus door then the sheath will be as long as width of the main building wall.Extra fixing may have to be welded to the sheath (masonry fixing plus screws , THE R ANGLED BAR with a big hole for the bolt (shorter side of the R angle) and a number of minor holes for fixing the bar to the lean on door (longer side of the R angle).
   
   The door should have some reinforcement for a sound fixing of this element.
   
   No measurements have been given because they depend on your very own project. ,,, With the help of the hammer get a neat R angle.Drill some holes on the longer part to fix it against the door.The R angle part must be several cm from the edge of the door to allow its swinging.Keep it aligned when screwing it on on a reinforced part do the door., Retract bolt.
   
   Close the door with great care and bang the bolt against the right-angled bar.You will get a white mark that will tell you where the hole for the bolt should go.Use a round file if needed, until the bolt fits in snugly., It will save you plenty of walking if the bolt and hole are not aligned when you close the lean on door for the day.,,
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   Step 2: actually.Marked in a circle you can see the lean on door

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   Step 3: hinges in the left.The door opens outwards.

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   Step 4: Know what you will need.

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   Step 5: THE BAR with the bolt hole attached to the door ( locking ring ).

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   Step 6: BOLT: get a length of thick iron rod

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   Step 7: mark 10 centimeter (3.9 in) from one end

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   Step 8: give it with the metal saw 4 cuts about 1 or 1'5 mm deep

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   Step 9: separated 2 or 2'5mm from the next.Hold the rod horizontally clamped sure in the vice.Hammer on the short part remembering that the cuttings go in the inside of the R angle.Make sure the rest reaches about 1/3 of the width of the door

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    Step 10: including thickness for the wall of the main building

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    Step 11: and width of the optional wall if there´s one.Finally give the other end of the bolt a nice tip with the grinder to make it engage better.

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    Step 12: SHEATH: Get inside the lean on with a long ruler

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    Step 13: a level and a pencil.From the middle of the door draw a horizontally levelled line until you reach the main wall of the cottage

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    Step 14: garage

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    Step 15: whatever.Drill a big hole and enlarge it to fit the sheath.In the inside end ( cottage) add some plates with holes.Fix the sheath in the hole

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    Step 16: keep it aligned and the cement o glue is set

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    Step 17: fix the plates with holes

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    Step 18: two plates will be enough.If there´s an optional wall the sheath fixing is longer but simpler.

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    Step 19: RIGHT-ANGLED BAR about 4 centimeter (1.6 in) wide

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    Step 20: 1 centimeter (0.4 in) thick and about 50 centimeter (19.7 in) long.Proceed as with the bolt.Take 10 centimeter (3.9 in) from one end and holding it in the vice do the same cutting/marking.

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    Step 21: Make the tip of the bolt show.Rub it with chalk or with some white sticky paint.

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    Step 22: Make a reference mark on the optional wall of the lean on when the bolt is fully pushed in.

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    Step 23: The idea of a SB is applied to furniture

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    Step 24: The moment the lid of the desk is closed and locked

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    Step 25: and the key taken

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    Step 26: we'll have two elements locked with a single key in a very simple way.

Detailed Guide

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