Used for connection of Putlogs & Transoms to Ledgers Made in india Nut Size- 1 /2^ prime prime BSW Thread x 21mm Half Tee Bolts - 1 / (2 ^ m) BSW Thread Available in Mild Steel or Boron Steel For 48.3 00 tube Size Finish - Zinc Plated Std. Packing - 50 Pcs/Bag, 1250...