Drive-In Telspar Anchor with FHWA standard High strength drive-in telspar anchor Telspar Anchor with competitive pricing Drive-In Telspar Anchor For Traffic Control Drive-In Telspar Anchor Material standardASTM A570, Grade50 Yield strength60,000 psi minimumSurface treatmentHot-dipped galvanized, chromate conversion coated, organic polymer topcoatHoles7/16" holes on 1"centers on all four sides ...