ER-W TD
Mechanical thread forms - External and internal inserts.
WHITWORTH (full form) BS84

 REFERENCE l d p
 16ER-11W TD 0.649 0.374 0.433
 16ER-14W TD 0.649 0.374 0.551
 16ER-16W TD 0.649 0.374 0.629

 REFERENCE KM15 PM25 TIN25 TL20          
 16ER-11W TD                
 16ER-14W TD                
 16ER-16W TD                

   Normally available for immediate delivery.
   Only available in a limited quantity.