Tension Control Washers
A325 & A490 Direct Tension Indicating Washers are available in both Plain and Mechanical Galvanized. We can also supply Load Indicating Squirter® Type Washers.
ASTM F959 / F959M - 17 Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners, Inch and Metric Series
Call 808-834-1919 or email Sales@HawaiiNutandBolt.com with your questions, submittal requests and order requirements.
Hawaii Nut & Bolt (HNB) specializes in distributing fasteners only. As such, we are not able to provide engineering advice, approvals, or warranties for specific applications. Customers are responsible for selecting the appropriate fasteners and performing any necessary testing to confirm conformance with application requirements.

