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Products

Grades/Classes

1 – 8 / 4.5 – 12.9

Lengths

4” (5 – 101mm) max

Diameters

½” (12mm)

Materials

Holbrook Manufacturing offers domestically manufactured specialty fasteners in a wide range of materials, including:

  • Alloy Steel
  • Aluminum
  • Brass
  • Low Carbon Steel
  • Medium Carbon Steel
  • Silicon Bronze
  • 300 Series Stainless
  • 400 Series Stainless

Finishes

Holbrook Manufacturing offers the most popular platings and finishes (conform to automotive standards), including:

  • Heat Treating
  • Passivation
  • Organic Plating
  • Trivalent Zinc
  • Black Oxide
  • Zinc Phosphate