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White braided nylon mason's line on spool, 500 ft

KRAFT TOOL

KRAFT TOOL BC340 Braided Nylon Mason's Line 500 ft

SKU CH-16BW-NTBAG MPN BC340

Braided nylon mason's line, 500 ft long with 170 lb tensile strength for layout and alignment tasks

  • TypeMasonry Tools
  • MaterialHAWA
  • Weight0.55
  • 500 ft length covers large jobs without re-spooling
  • Braided nylon resists abrasion and holds knots securely
  • 170 lb tensile strength handles heavy masonry loads
  • Bright white colour stays visible in dusty conditions
  • Light 0.55 lb spool reduces fatigue during layout

Mason's Line for Layout Work

The KRAFT TOOL BC340 is a braided nylon mason's line supplied on a single 500 ft spool. Its white colour provides high visibility against brick, block and concrete backgrounds. The line is intended for professional masons and builders who need a reliable reference for straight, level courses.

Braided Nylon Construction

The braided structure resists fraying and maintains tension without excessive stretch during layout. A tensile strength of 170 lb allows the line to be pulled tight over long spans without snapping. The nylon material resists moisture absorption and mildew, so the line remains serviceable after exposure to damp site conditions.

Practical Length and Strength Limits

At 500 ft the spool covers large wall runs without needing a join, but very long single spans may sag under the line's own weight. The 170 lb breaking strain is adequate for hand-tensioned layout but not for structural bracing or lifting loads. Users needing higher tension or longer continuous pulls should evaluate heavier-rated alternatives.

Highlights

  • 500 ft length covers large jobs without re-spooling
  • Braided nylon resists abrasion and holds knots securely
  • 170 lb tensile strength handles heavy masonry loads
  • Bright white colour stays visible in dusty conditions
  • Light 0.55 lb spool reduces fatigue during layout

Specifications

BrandKraft Tool
ModelBC340
TypeMasonry Tools
MaterialHAWA
Weight0.55

Questions about this item

What tensile strength does the 500 ft braided nylon mason's line reach?

The BC340 line is rated at 170 lb maximum tensile strength for layout and alignment work.

How much does the 500 ft spool weigh for transport and handling?

The spool weighs 0.55 lb making it light enough to carry on a belt or in a tool pouch.

How do you secure the line so it stays taut during a long run?

Tie the white nylon line to corner pins or stakes then pull tight and wrap the excess around the spool to prevent sag.

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