Quick Reference
Charts
Tapping Internal Threads
To help you select the ideal tap for your needs, the following page provides information on different taps and includes a Tap Drill Size Chart and a Drill Size Decimal Equivalent Chart
View PageTension Control Bolts
Covers the design and function of tension control (TC) bolts, highlighting their unique installation method and structural performance advantages.
View ChartGuides
Hex Bolts vs. Hex Cap Screws
Explains the key differences between hex bolts and hex cap screws, including manufacturing standards, dimensional tolerances, and common applications.
View GuideStructural Hardware
Provides an overview of essential structural fasteners such as A325 and A490 bolts, including their roles in heavy construction and steel connections.
View GuideTurn of Nut Installation
Outlines the turn-of-nut method for structural bolt installation, detailing proper procedure, benefits, and field considerations.
View GuideDirect Tension Indicators (DTI's)
Explains how DTIs are used to measure bolt tension, ensuring accurate and reliable installation in structural connections.
View GuideSpiral Wound Gaskets
Provides guidance on spiral wound gasket design, materials, and sealing performance in piping and pressure applications.
View GuideTools
All technical information provided on this website is for reference purposes only. Users should verify all data with the latest version of the applicable governing specification and assume full responsibility for its use.