Overview
Type 17 self-drilling point predrills itself. Self-countersinking "nibs" under the head.
What's included
(1) Robertson Square Drive Zip Driver
Technical Details
Product Warnings
WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.govWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood. Questions and Answers
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Browse 3 questions
Browse 3 questions
and 15 answers
robertson square drive - is head knurled for countersinking?
BEST ANSWER: Self-countersinking "nibs" under the head.
- Reply
- Inaccurate
- David Staff on Nov 28, 2017
Are these black phosphate or black oxide? I believe it is the black oxide screws that can bleed through and stain wood. I want to make sure if I use these they do not bleed through a plug for example and ruin a project.
BEST ANSWER: I don't know, but I never had a problem with bleed through and stainning
- Reply
- Inaccurate
- John F on Nov 11, 2017
- Purchased on Dec 7, 2015
Reviews
4.7 / 5.0
3 Reviews
Amazing product
This is a great product for any kind of woodwork. The self tapping bit ensures easy entry, and the square drive head makes for a tight grip and no slip drive.
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good screws
very good quality screws. used close to a thousand of them so far. haven't broken one yet. even in hardwood. the split in the screw tip cuts hole in wood and keeps splitting to a minimum.
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These would be the greatest screws...
These would be the greatest screws I've ever used if it wasn't for 1 thing: they are only available in size 8. I bought a package of them and built a moderately complex shop stand for my omnijig dovetail jig and routers. The fit and finish is great. The square drive is unbeatable and they seem to have no issue without pilot holes. They remind me of kreg screws, only with countersunk flat heads. I am sure #8 is strong enough, but it requires you to drill pilot holes with small bits. I couldn't find long 3/32" drill bits. While I know these are self-tapping, would much prefer to actually drill a proper pilot hole. It's so frustrating that there's a Rockler near me, the price is the same as my local hardware store's inferior screws, but I am stuck with one size. My project turned out great. I just wish have been more comfortable with #10 screws and hate using delicate drill bits.
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December 13, 2011
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