ASTM F959M Direct Tension Indicator Washers (Metric Series) | Compressible-Washer-Type | Carbon Steel | OEM Available

Description

ASTM F959M Direct Tension Indicators (DTIs) are compressible-washer-type devices engineered to provide a visual indication of proper bolt tensioning in structural fastener assemblies. As a crucial element in high-strength structural bolting, these metric series DTIs are designed to deform under tension, confirming the correct preload level during installation.

Made from high-quality carbon steel, these washers come in a variety of protective finishes, including plain, black oxide, zinc electroplating, hot dip galvanizing, copper plating, nickel plating, and zinc impregnation, ensuring reliable performance even in harsh environments.

This product conforms to ASTM F959/F959M, and is also compatible with EN 14399-9 and ASME B18.2.6 standards. OEM customization is available based on customer drawings or samples, and free samples are offered for pre-purchase evaluation.

Specifications:

• Standard: ASTM F959M (Metric Series), EN 14399-9, ASME B18.2.6

• Material: Carbon Steel

• Finish Options: Plain, Black Oxide, Zinc Electroplating, Hot Dip Galvanizing, Copper Plating, Nickel Plating, Zinc Impregnation

• Customization: OEM Available (Based on Drawings or Samples)

• Samples: Free

Packaging Options:

• Wooden Boxes

• Pallets

• Cartons

• Plastic Bags

• Nylon Bags

Applications:
✔ Steel Bridges
✔ Structural Steel Frameworks
✔ Towers & Infrastructure
✔ Preloaded Bolt Assemblies
✔ Construction & Engineering Projects