Ultra Screw PZ Double-Countersunk Multipurpose Screws… (79985)

£ 13.99INC VAT

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Ultra Screw PZ Double-Countersunk Multipurpose Screws 4 x 40mm 200 Pack (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 Head
  • A2 Stainless Steel
  • Wax-Coated
  • Fine Single Thread
  • Corrosion-Resistant
  • Universal Shank
  • Fully Threaded
  • For Wood, Plastic, Masonry & 1mm Sheet Metal
  • Deep, Sharp, Single Thread for Cutting Cleanly through Wood
  • Heat-Treated for Snap Resistance

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Rated 5 out of 5 by from Decent quality screws Bought 4 boxes for an outdoor project and they seem to be pretty good quality. Not tested long term exposure to weather yet, but they seem to be great so far. Another reviewer said not to over tighten, but I always pre-drill in oak as it’s just good practice!
Date published: 2022-05-16
Rated 5 out of 5 by from Stainless steel screws Great screws for outside use. Used these to build a wood store - easy to use and great performance, Little more expensive than standard screws but essential for outside. Would recommend.
Date published: 2022-04-30
Rated 2 out of 5 by from not what they used to be Ultra screw used to have a really good machined cutter with the thread. Not any more, they are no different to any other cheap generic stainless steel screw and therefore not worth the additional cost in price.
Date published: 2022-04-29
Rated 4 out of 5 by from Good Ideal for outdoor use where a shorter screw is needed. I used these 40mm long screws to make up a number of duck boards that were 50mm thick. The boards will be used in wet ground and stored outdoors so either resin coated decking screws or similar rust resisting fixings were needed. I’m guessing that that the stainless steel screws will outlast the treated softwood boards.
Date published: 2022-04-18
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What size pilot hole would I need in a wooden post for this screw?

Asked by: Notts663837
Hello Notts663837, These would need a 3mm pilot hole. Thank you for using Q&A
Answered by: Cwalm
Date published: 2021-08-04

Are these screws suitable for fixing Cedral lap fibre cement cladding boards with the boards pre-drilled ?

Asked by: Sumbro
Hello Sumbro, This should be fine for your needs. Thank you for using Screwfix Q&A. A.K.C.
Answered by: AliScrewfix1
Date published: 2021-01-10

What is the head diameter?

I need one with a head no more than 7mm in stainless.
Asked by: Sam6
Hello, This screw has a head diameter of 8mm. Thanks for using Q&A.[DG]
Answered by: DGIFF
Date published: 2021-04-07

If I predrill into 2.5mm steel will this screw work for me?

Asked by: Samuel87
Hello Samuel87, We would not recommend these screws for this use, unless you were fixing the steel to wood and the holes drilled had full clearance for the screws to pass through and grip the substrate. If we are fixing another material to the steel, please look instead at self-drilling or self-tapping screws. Thank you for using Q&A AS
Answered by: ProductSupport1
Date published: 2020-07-23

Can I use them with a wall plug?.

Asked by: Maxmay
Hello Maxmay, Yes, this product can be used with a wall plug, Thank you for using Q&A (CW)
Answered by: Cwalm
Date published: 2020-07-27
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Brand Ultra Screw
CE Standard (Tested to EN...) EN 14592.
Collated/Uncollated Uncollated
Construction Material (Screws) A2 Stainless Steel
Drive Type PZ
Fixings Finish Stainless Steel
Head Type Countersunk
Indoor/Outdoor Usage Outdoor
Manufacturer Guarantee 1 Year Guarantee
Pack Size 200
Pieces in Pack/Case 200
Product Length 40 mm
Product Type Multipurpose Screws
Resistant Type Corrosion-Resistant
Screw Diameter 4mm
Screw Diameter (mm) 4 mm
Screwdriver Type PZ
Screw Length 40mm
Screw Thread Type Fine Single Thread
Thread Length Fully Threaded