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Product Description

These are wood screws with:

  • Flat Head: flat top with a countersunk bearing surface.
  • Original Robertson® square drive
  • Self Counter-sinking Nibs
  • Lo-Root® Thread
  • Aster® Thread Feature

Lo-Root® Threading provides a single lead deep thread with a wide spacing for superior holding in softwoods and particle boards. 

Aster® Thread Feature is now standard on all Lo-Root® screws with a serrated tooth thread design, providing quicker starting, reduced splitting and less drive torque.

It is recommend to use only Original Robertson® bits together with Robertson® screws for a true "Cling Fit" that provides maximum recess penetration, holding power and driving performance.

Product Advantages

  • Original Robertson® Fastening System
  • With true "Cling Fit" in maximum recess
  • Aster® serrated teeth on all Lo-Root Deep Threads provide greatest holding strength in soft woods and particle boards
  • Sharp thread angles and points offer excellent penetration and engagement
  • Self-countersinking nibs under the head

Important Information

All Screws under 1" are fully threaded. Screws over 1" are 2/3 threaded to help prevent "jacking" when two materials are fastened together.

Product Specifications
Application Type General Purpose
Drive Type Robertson
Head Type Flat
Nibs Included? Yes
Packaging Bulk Case
Point Type Standard
Thread Type Lo-Root
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