** ONE PER BID ** For sale is ONE Heavy Duty C-Clamp. 6" Maximum opening. 4" Throat depth. 10-3/4" X 6" Overall size of clamp body. Several available. Manufactured either by Armstrong, Williams or Fairmount. These C-Clamps are drop forged construction, Made in the USA. Thread length approximately 7-1/2". Approximately 4.6 pounds net weight each. NOTE: Some of these C-Clamps have end-pieces on the threaded rod, some do not. Ships in a USPS large flat rate box.