Spi 14-030-1 Screw Pitch Gage 28 Leaf Steel

Product Description

The SPI 14-030-1 is a 28-leaf steel screw pitch gage designed to identify and verify thread pitch on both external and internal threaded fasteners and fittings. The gage covers a pitch range of 1/4 to 2.5mm and is built with a 60-degree thread angle, making it suitable for standard metric thread identification. Each leaf is stamped with its pitch value for fast, direct reading in the field or at a workbench. Machinists, pipefitters, and maintenance technicians rely on this type of tool to match thread pitch before cutting, chasing, or selecting replacement hardware.

This pitch gage is suited for trade and industrial applications where accurate thread identification is required before fitting pipe fittings, fasteners, or threaded components. It is useful in plumbing, mechanical maintenance, and light manufacturing settings where both external bolt threads and internal nut or fitting threads need to be confirmed. The compact folding-leaf design keeps all 28 leaves organized and protected when not in use.

Key Features

• 28 individual leaves covering 1/4 to 2.5mm pitch range
• 60-degree thread angle for standard metric thread identification
• Checks both external and internal thread locations
• Steel construction for durability in shop and field environments
• Compact folding design keeps leaves organized and protected

Compatibility

Designed for use with standard metric threads at a 60-degree thread angle on external and internal threaded fasteners and fittings.

Installation Notes

No installation is required for this hand tool. Before use, ensure the threaded part is clean and free of debris so leaves seat fully against the thread profile. Fan through the leaves and match each to the thread by feel and visual flush contact. Store the gage folded to prevent leaf damage.