SIZE: 19.0mm
MOUNTING: Equivalent Names: Screw-On,
Screw-In, or Screw Base
SHAPE: Oval, Symmetric, Symmetrical Nose
Pad
MATERIAL: Soft Silicone Over Polycarbonate
Nose Pad Mount Support Insert
Nose Pad Buyers Tip #118: The head of a nose pad screw is the top portion of the screw that interacts with the optical screwdriver; also know as a jeweler's screwdriver. Optical replacement screws generally have either a slotted or Phillips type of head. The slotted head is characterized by a single indentation or groove along the diameter of a screw, while the Phillips head has a crossed shaped intersection of two slots or grooves. Although both types of screw heads are used in optical repairs, the slotted head replacement screw is more popular probably due to the wide availability of slotted optical screwdrivers.
