diff --git a/vitamins/nuts.scad b/vitamins/nuts.scad
index f9210aa..46c917c 100644
--- a/vitamins/nuts.scad
+++ b/vitamins/nuts.scad
@@ -52,11 +52,11 @@ toggle_nut  =      ["toggle_nut",       6.1, 9.2, 1.5, 1.5,  M6_washer,     1.5]
 M4_wingnut  =      ["M4_wingnut",       4,  10,   3.75,8,    M4_washer,     0, 22, 10, 6, 3];
 
 //                                                                              sx  ty1 ty2
-M3_sliding_t_nut = ["M3_sliding_t_nut", 3,   6,   3.0, 4.0,  M3_washer,     0,  10,  10,  6];
-M4_sliding_t_nut = ["M4_sliding_t_nut", 4,   6,   3.25,4.5,  M4_washer,     0,  11,  10,  6];
-M5_sliding_t_nut = ["M5_sliding_t_nut", 5,   6,   3.25,4.5,  M5_washer,     0,  11,  10,  7];
-M3_hammer_nut =    ["M3_hammer_nut",    3,   6,   2.75,4.0,  M3_washer,     0, 5.5,  10,  6];
-M4_hammer_nut =    ["M4_hammer_nut",    4,   6,   3.25,4.5,  M4_washer,     0, 5.5,  10,  6];
+M3_sliding_t_nut = ["M3_sliding_t_nut", 3,   6,   3.0, 4.0,  false,         0,  10,  10,  6];
+M4_sliding_t_nut = ["M4_sliding_t_nut", 4,   6,   3.25,4.5,  false,         0,  11,  10,  6];
+M5_sliding_t_nut = ["M5_sliding_t_nut", 5,   6,   3.25,4.5,  false,         0,  11,  10,  7];
+M3_hammer_nut =    ["M3_hammer_nut",    3,   6,   2.75,4.0,  false,         0, 5.5,  10,  6];
+M4_hammer_nut =    ["M4_hammer_nut",    4,   6,   3.25,4.5,  false,         0, 5.5,  10,  6];
 
 nuts = [M2_nut, M2p5_nut, M3_nut, M4_nut, M5_nut, M6_nut, M8_nut];
 
diff --git a/vitamins/sk_bracket.scad b/vitamins/sk_bracket.scad
index ddf1884..82e9cad 100644
--- a/vitamins/sk_bracket.scad
+++ b/vitamins/sk_bracket.scad
@@ -116,7 +116,7 @@ module sk_bracket_assembly(type, part_thickness, screw_type = M5_cap_screw, nut_
         screw_and_washer(screw_type, screw_length);
         translate_z(-nut_offset)
             vflip()
-                if(nut_type == M5_sliding_t_nut)
+                if(!nut_washer_type)
                     sliding_t_nut(nut_type);
                 else
                     nut_and_washer(nut_type);