Bon Tool 11-139 Bricklayer Line Pins Hardened Steel 6 Pack

Product Description

The BON TOOL 11-139 is a set of six bricklayer line pins constructed from hardened steel for reliable strength and durability in demanding masonry environments. Each pin features a tapered design that allows for fast, secure insertion into mortar joints or block cores when setting mason lines. The pins measure 4.25 inches long by 0.98 inches wide by 0.24 inches thick, providing a stable anchor point that holds line tension accurately during brick and block installation. Sold as a package of six, the 11-139 is a standard consumable for professional masonry crews.

These line pins are suited for residential and commercial masonry applications including brick veneer, concrete block walls, retaining walls, and similar unit masonry systems. They are used to anchor and tension string lines at course level, ensuring accurate layout and consistent mortar joint spacing throughout the installation. Masonry contractors, bricklayers, and block masons keep sets of these pins on hand as everyday working tools on both new construction and repair projects.

Key Features

• Hardened steel construction for extended service life under repeated use
• Tapered profile allows quick insertion and firm seating in mortar joints or block cores
• Dimensions of 4.25 inches x 0.98 inches x 0.24 inches provide stable line support
• Sold in a package of 6, suitable for stocking a full masonry kit
• Lightweight at 0.31 pounds per package for easy transport on the job site

Compatibility

Designed as a standard replacement and consumable line pin for professional bricklaying and block masonry work where a tapered hardened-steel pin is required to anchor mason lines.

Installation Notes

Line pins are installed by licensed or journeyman masons and experienced masonry tradespeople. Before setting pins, verify that the mortar joint or block core is clean and free of debris to ensure firm seating. Press or tap the pin firmly into position using a brick hammer if needed, and confirm the line is taut and level before laying each course. Remove pins carefully after the mortar has set to avoid disturbing freshly laid units.