ALLOY C110 Hard Temper. Our copper is solid copper and is strong due to the hard temper. If you have used craft wire or electrical wire in the past - these are soft temper and weak.
Please Note: there are 2 gauge systems. Read the sizes in decimal inches and mm to be sure you order the size you want.
Special Notes, Twisted Wire:
*Twists are very consistent within the 50ft coil but the spacing will vary slighly between coils.
*W-CU-SQ-TW16: 1 strand of 0.048" square wire that has been twisted.
*W-CU-SQ-TW19: 1 strand of 0.032" square wire that has been twisted.
