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MDF-Tite MDF Screws 3.9 x 40mm 200 Pack (40376)

10.45INC VAT

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MDF-Tite MDF Screws 3.9 x 40mm 200 Pack (40376)

Designed to meet the latest developments in MDF board. Tri-Lock threadform and shank incorporates the benefits of a single coarse thread with a twin thread start on the same screw. Spiral point breaks through the hard, dense surface, allowing the twin thread to engage. The twin thread is reduced to a single coarse thread, enabling high pull-out retention. Underhead ribs for self-countersinking. Zinc and yellow-passivated.

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Butt joint into 12mm MDF boards

I would like to use these to make enclosed box shelves with a open front. 1.Will this work with 12mm MDF board to make butt joints without blowouts, splits or bulging? 2.Do these screws require a Pilot hole before application?
Asked by: MD93
Thank you for your enquiry. MDF-Tite® will work perfectly in this application and whilst we believe it would work fine without a pilot hole, we would always recommend pre-piloting when uncertain to prevent any splits or bulging.
Answered by: Screw-Tite Product Expert
Date published: 2020-11-30

What's the exact width of the head in 0.00mm format ?

Asked by: dazzawazza
The head size is 7.5 – 8mm in diameter. Regards The Tite-Range Team
Answered by: Screw-Tite Product Expert
Date published: 2020-10-31

Will these screw into mdf end grain and not spit the mdf?

Asked by: doeruper
Hello It depends on the thickness of the MDF. If in doubt, drill a 2mm pilot hole. Regards Tite-Fix
Answered by: Screw-Tite Product Expert
Date published: 2020-05-13

Thread Length

What is the length of the thread as, I'm after a 40mm screw with 20mm thread
Asked by: Spl1nter
Hi, thanks for your enquiry, on the 40mm MDF-Tite the tolerance for the thread length is between 24 and 26mm. Hope this helps!
Answered by: Screw-Tite Product Expert
Date published: 2019-09-07

Why do these blow out the MDF sides

Not sure how a anyone makes these work. They blow out the sides of MDF. I normally use spax MDF fixings which have a much thinner shaft. Really hard to remove but don't damage the Sides
Asked by: TSJTimber
If you are driving close to the edge drillign a pilot hole will eliminate the problem.
Answered by: Screw-Tite Product Expert
Date published: 2019-04-20
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Specification
Brand MDF-Tite
Indoor/Outdoor Usage Indoor
Manufacturer Guarantee 1 Year Guarantee
Pack Size 200
Pieces in Pack/Case 200
Product Diameter 3.9 mm
Product Length 40 mm
Product Type MDF Screws
Screw Diameter (mm) 3.9 mm