Collard Eye Bolt – Black UNC

Marked with Thread Type, Size, Rating, Batch No.

If you are struggling to find either a BSW thread (British Standard Whitworth) or an UNC thread (Unified National Coarse), it is useful to know that in almost all cases the two threads are interchangeable in practical terms except for 1/2″ where the thread pitch is different: BSW = 12 tpi and UNC = 13 tpi