US box screw M4 x 20 with square nut

  SUP & Windsurf Boards Fin 23cm US Box * FIN SCREW & SLIDER SET - NOT INCLUDED

SUP & Windsurf Boards Back Fin 20cm US Box * FIN SCREW & SLIDER SET - NOT INCLUDED    

Cobra Footstrap Screw: Available in 7 x 32 mm & 6 x 32 mm.    

Full set of screws For Sportyak 245

Thick, ergonomic foam cushioning, shaped and adjustable for maximum control in waves and whitewater. Soft neoprene comfort.    

  FCS screws Standard FCS compatible Set of 6 screws Super tough stainless steel  

Quality stainless bolt machined for generic board pressure valves. No need for screwdriver - in fact use of a coin is recommended to prevent 0-Ring and plastic thread damage from over-tightening...

  Hatch kit oval shape & screws    

  If you do not carry an extra one of these in your gear bag you are asking for it. Stock that gear bag up for your next windsurf adventure. Oh, and most people have two nuts, not one. &