Metric Coarse Hexagon Half Nuts A4 316 Stainless Steel To DIN 439

Metric Coarse Hex Half (Lock) Nuts To DIN 439 Grade A4 316 Stainless Steel
 

M3 - M6 Half Nuts Are Packed In 100's 
M8 - M12 Half Nuts Are Packed In 10's
M16 - M20 Half Nuts Are Sold Individually