Blackthorn has the ability to create Solid Plastic or Steel machined lettering inserts for all of your molds that require permanent cast-in identification.

Custom Lettering Plate Installation Instructions

Call for a Quote!

We Can Machine…

  • Company Name or Logo
  • Warnings or Phrases
  • Inlet/Outlet
  • Part Numbers
  • Capacities
  • Descriptions
  • Line Art
  • Images
  • Production Dates
  • Etc…The Sky’s the Limit!


Cornell U Sign with chappy 221w

Cornell University Combined Heat & Power Plant Logo


npca cutoutNPCA Certified Plant Logo


Meets ASTM Standards smallerMeets ASTM C 1227


American Legion Logo


long fish lettering plate 221wNew fish lettering plate 200w

Dump No Waste


Magnetic Small & Large Year



Inlet & Outlet


500+1250 GAL 100h
500 GAL 1250 GAL


MCD cutout 75h
Magnetic Individual Letters

(full alphabet & individual numbers 0-49 currently available)


high voltage cutoutDanger High Voltage


Protect US 100h

Protect US Logo


Jarrett Concrete Products “Top Tight Tank” Logo