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    LOCK WASHER INTERNAL ZINC #10 INTERNAL TOOTHED

    ILW10
    • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
    • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
    • Made from spring steel, zinc plated.
    • Rockwell Hardness: C40-50.
    • Inside Diameter: Min .195 Max .204
    • Outside Diameter: Min .365 Max .381
    • Thickness: Min .018 Max .024

      LOCK WASHER INTERNAL ZINC #12 INTERNAL TOOTHED

      ILW12
      • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
      • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
      • Made from spring steel, zinc plated.
      • Rockwell Hardness: C40-50.
      • Inside Diameter: Min .221 Max .231
      • Outside Diameter: Min .394 Max .410
      • Thickness: Min .020 Max .027

        LOCK WASHER INTERNAL ZINC #6 INTERNAL TOOTHED

        ILW6
        • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
        • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
        • Made from spring steel, zinc plated.
        • Rockwell Hardness: C40-50.
        • Inside Diameter: Min .141 Max .150
        • Outside Diameter: Min .275 Max .295
        • Thickness: Min .016 Max .022

          LOCK WASHER INTERNAL ZINC #8 INTERNAL TOOTHED

          ILW8
          • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
          • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
          • Made from spring steel, zinc plated.
          • Rockwell Hardness: C40-50.
          • Inside Diameter: Min.168 Max .176
          • Outside Diameter: Min .325 Max .340
          • Thickness: Min .018 Max .023

            LOCK WASHER INTERNAL ZINC 1/2" INTERNAL TOOTHED

            ILW50
            • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
            • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
            • Made from spring steel, zinc plated.
            • Rockwell Hardness: C40-50.
            • Inside Diameter: Min .513 Max .530
            • Outside Diameter: Min .867 Max .900
            • Thickness: Min .037 Max .045

              LOCK WASHER INTERNAL ZINC 1/4" INTERNAL TOOTHED

              ILW14
              • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
              • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
              • Made from spring steel, zinc plated.
              • Rockwell Hardness: C40-50.
              • Inside Diameter: Min .256 Max .267
              • Outside Diameter: Min .460 Max .478
              • Thickness: Min .023 Max .028

                LOCK WASHER INTERNAL ZINC 3/4" INTERNAL TOOTHED

                ILW34
                • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
                • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
                • Made from spring steel, zinc plated.
                • Rockwell Hardness: C40-50.
                • Inside Diameter: Min .768 Max .795
                • Outside Diameter: Min 1.220 Max 1.245
                • Thickness: Min .047 Max .055

                  LOCK WASHER INTERNAL ZINC 3/8" INTERNAL TOOTHED

                  ILW38
                  • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
                  • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
                  • Made from spring steel, zinc plated.
                  • Rockwell Hardness: C40-50.
                  • Inside Diameter: Min .384 Max .398
                  • Outside Diameter: Min .670 Max .692
                  • Thickness: Min .032 Max .040

                    LOCK WASHER INTERNAL ZINC 5/16" INTERNAL TOOTHED

                    ILW56
                    • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
                    • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
                    • Made from spring steel, zinc plated.
                    • Rockwell Hardness: C40-50.
                    • Inside Diameter: Min .320 Max .332
                    • Outside Diameter: Min .594 Max .610
                    • Thickness: Min .028 Max .034

                      LOCK WASHER INTERNAL ZINC 5/8" INTERNAL TOOTHED

                      ILW58
                      • A hardened circular washer with twisted prongs or teeth which extend inward from the inside edge of the washer.
                      • This style is preferred when finished appearance is crucial and the teeth must be hidden under the head of the screw
                      • Made from spring steel, zinc plated.
                      • Rockwell Hardness: C40-50.
                      • Inside Diameter: Min .641 Max .663
                      • Outside Diameter: Min 1.045 Max 1.071
                      • Thickness: Min .042 Max .050