diff --git a/quincaillerie/Boulon_M6x60Hex_R_50_R_EF.FCStd b/quincaillerie/Boulon_M6x60Hex_R_50_R_EF.FCStd
deleted file mode 100644
index 5531d25..0000000
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diff --git a/quincaillerie/boulons/Boulon_M6x60Hex_R_xx_R_EF.FCStd b/quincaillerie/boulons/Boulon_M6x60Hex_R_xx_R_EF.FCStd
new file mode 100644
index 0000000..f680caa
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diff --git a/quincaillerie/boulons/readme.txt b/quincaillerie/boulons/readme.txt
new file mode 100644
index 0000000..75ecb57
--- /dev/null
+++ b/quincaillerie/boulons/readme.txt
@@ -0,0 +1,12 @@
+Les boulons suivent ce modèle de nommage :
+
+Boulon_M6x60Hex_R_xx_R_EF
+
+M6 = diamètre et pas de vis
+60 = longueur de la vis
+Hex = tête hexagonale
+R = rondelle
+xx = écartement variable (on choisit au moment de placer dans l'assemblage)
+R = une autre rondelle
+EF = écrou frein
+
diff --git a/vheliotech.FCStd b/vheliotech.FCStd
index 1a2fc44..e92b5b5 100644
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