Ultra Screw PZ Countersunk Multipurpose Screws 4 x… (79985)

£ 13.99INC VAT

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Ultra Screw PZ 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 for Reduced Shear
  • A2 Stainless Steel Construction
  • Wax-Coated
  • AB Point Thread-Forming
  • Fully Threaded
  • Deep, Sharp, Single Thread for Cutting Cleanly through Wood
  • For Wood, Plastic, Masonry & 1mm Sheet Metal
  • Heat-Treated for Snap Resistance
  • Corrosion-Resistant

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Rated 1 out of 5 by from Poor quality Disappointing. Screw heads are too soft so if there is any amount of torque required, the heads fail and you are left with a screw half in and half out that can't be unscrewed.
Date published: 2022-09-14
Rated 2 out of 5 by from Weak material Unimpressed with the strength of these screws. Used to externally fit cleats to armour cable and found when tightening cleats around cable to wall that at least 20% of the screws used snapped, resulting in the head of the screw shearing off. Real pain as had to remove cleats and try and extract remainder of threads from raul plugs or re-drill and refit. Choose to use these screws as stainless for external use, but don't really seem fit for purpose. Would not recommend if needed to securely fix something tight under torque. Overall poor quality strength wise.
Date published: 2022-09-03
Rated 5 out of 5 by from Stainless screws Good quality and recommended by company who i install concrete protection systems over HP gas pipelines, not had any issues in the last 8 year.
Date published: 2022-08-06
Rated 4 out of 5 by from Screws seem ok to me Time will tell if they rust or not. Annoying that the perforated tab on the box is sellotaped over.
Date published: 2022-07-25
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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