Premium quality stainless steel threaded speargun adapters. At one end is 5/16"-24 male thread to fit into 5/16" threaded heads and at the other end is 7mm female thread for fitting to spear shafts with a 7mm threaded end. Fitting is 40mm in total length, but will add 25mm when threaded between your head and shaft.

• Premium quality stainless steel
• Threaded spear shaft and head adapters
• Allows interchange of brands and styles of heads
  
• 5/16"-24 male
• 7mm female
• Fits all Euro M7 threaded shafts
• 40mm total length
• Adds 25mm in length when threaded
• Weight 15g

Note: this adapter is made from quality 316 stainless steel - not tempered hardened stainless steel like many spears and heads. So please consider this when choosing to add an adapter in your set-up. This is not designed to be used as an extension segment for a spear, simply a means of adapting a thread size.