Adjusting regex for ISO and UNC threads to better support floats

app/services/augmented_part_sync.py

@@ -52,8 +52,10 @@ MM_PER_INCH = 25.4
 # e.g.
 #   M8-1.25    - 8mm OD, 1.25 mm pitch
 #   M8 x 1.25
+#   M50x.75    - No leading digit on floats
+#  Float pattern: \d*\.?\d+
 _ISO_THREAD_RE = re.compile(
-    r"^M\s*(?P<diameter>\d+(?:\.\d+)?)\s*[xX-]\s*(?P<pitch>\d+(?:\.\d+)?)(?P<extra>.*)$"
+    r"^M\s*(?P<diameter>\d*\.?\d+)\s*[xX-]\s*P?(?P<pitch>\d*\.?\d+)(?P<extra>.*)$"
 )
 
 # e.g.
@@ -63,7 +65,7 @@ _ISO_THREAD_RE = re.compile(
 #
 # Leading digit / period, one or more digits, a dash, then
 _UNC_THREAD_RE = re.compile(
-    r"^(?P<diameter>\d+(?:\.\d+)?(?:/\d+)?)\s*-\s*(?P<tpi>\d+)"
+    r"^(?P<diameter>\d*\.?\d+)\s*-\s*(?P<tpi>\d*\.?\d+)"
     r"\s*(?P<series>UNEF|UNC|UNF|UNS|UN)?$",
     re.IGNORECASE,
 )