The listing is for a lot of 100 stainless steel Allen socket flat head cap screws.  The grade is 316 (marine grade)    The markings on the head shows "BSC A4-70"

Allen Socket Flat Head Cap Screws have a 90 degree angle underneath the head. When installed, the head of this screw is meant to sit flush with the surface of the work in a countersunk hole. 

The grade 316 offers a  superior corrosion resistance for use in marine, chemical, and other harsh environments. These screws are designed to provide long-lasting durability in applications where strength and rust protection are essential.

The flat head design ensures a flush, smooth finish, ideal for countersunk applications that require both functionality and aesthetic appeal.

Please see pictures for any measurements. These items were in a bin and not inside a package.  

  • Counter Sink Head Fasteners : Measured From Top OF Head To Point
  • Socket Cap Head Fasteners : Measured From Underneath The Head

    • These items were part of the Wits End bankruptcy sale.  More to be listed soon.