diff --git a/Electrical Parts/NEMA-17_Stepper_Motor_40mm.fcstd b/Electrical Parts/NEMA-17_Stepper_Motor_40mm.fcstd
new file mode 100644
index 00000000..f500cd04
Binary files /dev/null and b/Electrical Parts/NEMA-17_Stepper_Motor_40mm.fcstd differ
diff --git a/Electrical Parts/NEMA-17_Stepper_Motor_40mm.step b/Electrical Parts/NEMA-17_Stepper_Motor_40mm.step
new file mode 100644
index 00000000..2be5c08d
--- /dev/null
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diff --git a/Electrical Parts/NEMA-17_Stepper_Motor_40mm.stl b/Electrical Parts/NEMA-17_Stepper_Motor_40mm.stl
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diff --git a/Electrical Parts/NEMA-17_Stepper_Motor_40mm_with_connector.fcstd b/Electrical Parts/NEMA-17_Stepper_Motor_40mm_with_connector.fcstd
new file mode 100644
index 00000000..8c1a7262
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diff --git a/Electrical Parts/NEMA-17_Stepper_Motor_40mm_with_connector.step b/Electrical Parts/NEMA-17_Stepper_Motor_40mm_with_connector.step
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index 00000000..fa97a1da
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diff --git a/Electrical Parts/NEMA-17_Stepper_Motor_40mm_with_connector.stl b/Electrical Parts/NEMA-17_Stepper_Motor_40mm_with_connector.stl
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diff --git a/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.fcstd b/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.fcstd
new file mode 100644
index 00000000..36625fbd
Binary files /dev/null and b/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.fcstd differ
diff --git a/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.step b/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.step
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index 00000000..9dbd1403
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+  'distance_accuracy_value','confusion accuracy');
+#2347 = PRODUCT_TYPE('part',$,(#7));
+#2348 = MECHANICAL_DESIGN_GEOMETRIC_PRESENTATION_REPRESENTATION('',(
+    #2349),#2342);
+#2349 = STYLED_ITEM('color',(#2350),#15);
+#2350 = PRESENTATION_STYLE_ASSIGNMENT((#2351,#2357));
+#2351 = SURFACE_STYLE_USAGE(.BOTH.,#2352);
+#2352 = SURFACE_SIDE_STYLE('',(#2353));
+#2353 = SURFACE_STYLE_FILL_AREA(#2354);
+#2354 = FILL_AREA_STYLE('',(#2355));
+#2355 = FILL_AREA_STYLE_COLOUR('',#2356);
+#2356 = COLOUR_RGB('',0.800000011921,0.800000011921,0.800000011921);
+#2357 = CURVE_STYLE('',#2358,POSITIVE_LENGTH_MEASURE(0.1),#2356);
+#2358 = DRAUGHTING_PRE_DEFINED_CURVE_FONT('continuous');
+ENDSEC;
+END-ISO-10303-21;
diff --git a/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.stl b/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.stl
new file mode 100644
index 00000000..68f9669a
Binary files /dev/null and b/Mechanical Parts/Fasteners/Bolts & Screws/Metric/ISO4762_Hex_Socket_Head_Cap_Screw_M4x20.stl differ