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POCKET-HOLE JOINERY

Pocket-Hole Joints are strong, as strong as mortise and tenon joints. Pocket-Hole Joinery is both fast and precise when using Kreg® Pocket-Hole Jigs.

Drilling and Setting the Pocket Hole Screw

When joining members with pocket hole screws, it is important that the screw's threads are embedded in the second piece only (piece A).

Proper-Pocket Hole Thread Installation

As seen, the screw's threads do not span between the two pieces to be joined. Selecting the correct screw length is essential. If the screw's threads bridge between the two pieces, then the joint will often fail to be pulled tightly together resulting in weak gluing. Use the following table as a guide for proper screw length:

MATERIAL THICKNESS

SCREW LENGTH

1/2 in. to 5/8 in. 1 in.
3/4 in. 1-1/4 in.
7/8 in. to 1-1/8 in. 1-1/2 in.
1-1/4 in. to 1-3/8 in. 2 in.
1-1/2 in & up 2-5/8 in.

 

Setting the proper depth of the Stepped Drill Bit is also essential. The stepped drills have an adjustable depth stop collar that ensures proper depth. The smaller-diameter pilot-hole portion of the bit should completely drill through the first member (part B) and then drill a pilot hole in the second member (part A). The larger-diameter portion of the stepped drill bit will then cut the shoulder in the first part (Part B) at a depth that will allow all the threads to be embedded in the second part (Part A).

Selecting the Proper Screw Material and Thread Type

Indoor Applications - Unplated Dry Lube Screws

Selecting screws with the correct threads will provide maximum pull-out strength which will pull the joint tightly together. McFeely's branded screws come in four thread types for the following materials:

  • Fine Threads - For hardwoods such as cherry, mahogany, maple, oak, and walnut.
  • Coarse Threads - For softwoods such as cedar, fir pine, and poplar.
  • Super-Eight™ Coarse Threads - For softwoods for which coarse threads are used plus MDF and particle board.
  • PocketMax®  - For joining 2x construction lumber or 2x pressure-treated lumber where a longger screws are needed.
  • Kreg® Micro Pocket-Hole Screws - For small projects using the Kreg® Micro jigs.

Outdoor Applications - Corrosion Resistant

  • McFeely's offers PocketMax® NoCoRode™ and 305-Stainless Steel Pocket-Hole screws.
  • Kreg® offers the Blue-Kote™ and 305 Stainless-Steel Pocket-Hole screws.