Bulk ChainAcco chain is hot dip galvanized, which is superior to the zinc electroplating used by most other U.S. chain vendors. When comparing Acco chain to other brands, be sure to ask if other brands are hot dip.” Remember that the Maximum Working Load (MWL) is a conservative rating for safety and should not be exceeded, although the breaking strength is generally 3–4 times greater. We sell Acco chain by the foot in lengths up to the size of the standard pack. BBB is made of low-carbon steel, but has calibrated links (shorter than the links of Proof Coil chain) that are compatible with many windlasses. Unless indicated otherwise, BBB chain offered herein are manufactured to I.S.O. specifications. Made in USA. Sold by the foot. We will contact you if chain quantity purchased requires truck freight at additional shipping charge.