Ultra Screw PZ Double Countersunk Woodscrews 4 x 40mm 200 Pack Product Code: 79985

Top quality, waxed single thread, multipurpose screw. Popular with the professional. Features a lower screw-in torque and faster drive speed. Suitable for screwdrivers and combi drills.


  • Double-Countersunk
  • A2 Stainless Steel
  • Coarse Single Thread
  • Corrosion-Resistant
  • Suitable for All Wood Types
  • Ideal for the Professional


EN 14592.
Additional Information
Technical Specification
  • Resistant Type : Corrosion-Resistant
  • Brand : Ultra Screw
  • Drive Type : PZ
  • Screwdriver Type : PZ
  • Screw Thread Type : Coarse Single Thread
  • Product Length : 40 mm
  • Product Type : Woodscrews
  • Suitable Application : For all Wood Types, Plumbing & Freshwater Use
  • Fixings Finish : Stainless Steel
  • Screw Diameter (mm) : 4 mm
  • Head Type : Double Countersunk
  • Pack Size : 200
  • Construction Material (Screws) : A2 Stainless Steel
  • Product Diameter : 4 mm
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 200
  • CE Standard (Tested to EN...) : EN 14592.
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

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€11.95 Incl. 23% VAT

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Ultra Screw PZ Double Countersunk Woodscrews 4 x 40mm 200 Pack is rated 4.1 out of 5 by 19.
Rated 5 out of 5 by from Just what I needed. Perfect for outdoor diy jobs. Highly recommend. Good quality and really strong.
Date published: 2019-07-21
Rated 4 out of 5 by from Absolutely fine Bought to secure battens to oak gravel boards. With pilot holes drilled, these screws did a fine job.
Date published: 2019-06-27
Rated 3 out of 5 by from Stainless Screws Good screws but if the head shears remove and replace, have used well over 1000 screws 2-3% failure rate, once secured all good
Date published: 2019-06-09
Rated 2 out of 5 by from Okay for a Stainless Screw We have a few boxes of these screws. You have to be careful driving them in as the heads have a tendency to snap off. We have found that a bit of grease on the tip and a hand screwdriver is the best way of using them. Impact driver is a no-no especially when using plug and screw into stone, the screw is just too brittle and snaps. Driving into wood we have had no issues.
Date published: 2019-03-31
Rated 5 out of 5 by from Perfect Screw Lets be honest here, not all screws are the same. Some are very disappointing and you have to stop halfway through, remove it and put a fresh one in again. No head sheer here, straight in. Satisfaction guaranteed. Job Done!
Date published: 2018-12-02
Rated 5 out of 5 by from Great product Best stainless steel screw, pulls in quick and good quality
Date published: 2018-11-16
Rated 4 out of 5 by from Don't rust and great grip! Wanted a fully threaded rust proof screw for attaching 19mm fencing posts. Drilled a small pilot hole and used a counter sinker to leave a neat job. Easily driven home using an impact driver and being fully threaded, pulls the board in nice and tight against the fixing posts. Easy to remove if need be too. Stainless steel doesn't rust so all boxes are ticked. Expensive screw but better than the zinc passivated screws!
Date published: 2018-10-08
Rated 2 out of 5 by from Poor quality - Heads strip Purchased these screws to fix cleats and an irrigation hose to fence panels along the garden. Immediately had problems with pozi-drive heads stripping out when screwing into softwood and having to use pliers to remove them and try again. Eventually had to drill pilot holes for each and every screw fixing. These may be stainless alloy but probably not stainless steel screws ... Poor quality and not impressed.
Date published: 2018-09-08
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