
Positive torque first. These things are tough! Make sure you use a good quality screwdriver bit for installation, the heads cut your good ones Bits from Harbor Freight or Wal Mart after just a few screws Cons I used them to install joist hangers on a machined 2x6 for a porch cover, the fact they have a pin instead of a cutting tip made them difficult to fasten so you can imagine the frustration of working with a slow startup screw combined with driver bit rounding as I mentioned.

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