These Hex Head Mauser screws are a classic addition to any custom rifle. They add a distinct look that does not need to be timed. The 5/32 hex is broached .175 thousands deep for a positive grip and are designed to fit aftermarket bottom metal like Blackburn or Sunny Hill. However, they can be shortened to fit military bottom metal like the Argentine 1909. They are delivered polished and blued ready to use.