Standard thread pitch explanations and a chart showing number of threads per inch for National Coarse, National Fine and 8 Pitch threads.

Thread Pitch Chart Thread Pitch Chart Standard thread pitch explanations and a chart showing number of threads per inch for National Coarse, National Fine and 8 Pitch threads.

This is used with larger-diameter lag screws because it would require too much torque to screw in a larger-diameter lag screw without the pilot hole. The pilot hole is typically slightly smaller in …

The lag thread is deeper and sharper than national coarse thread since it is designed to drive into wood and not to be used with a nut. Imported hex lag screws normally originate from Asia, …

Torque values for various grades and diameters of fasteners.

Jun 15, 2023 · Bolt Thread Length Is there a standard thread length for bolts? Depending on the type of bolt you are using the thread length can vary greatly. There is not an inclusive thread …

Hex bolts are a commonly used construction fastener. We manufacture hex head bolts up to 2-1/2" in diameter.

Bolt lengths > 6″: Thread length = (2 X diameter) + 1/2″ Note: Most imported stock carriage bolts have a thread length of 6″ and are fully threaded when the bolt length is 6″ or shorter.

Information regarding the lead hole diameter required for various sizes of lag screws manufactured by Portland Bolt.

May 10, 2024 · There are several different thread series available for construction fasteners. Below are the three of the most common thread series utilized in the fastener industry. For …