FREE DELIVERY OVER £50
CLICK & COLLECT
Screwfix Gift Cards a perfect gift
SERVICE UPDATES

As an essential retailer, our stores remain open across the UK

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

£ 8.79INC VAT

Add to basket for...

Check stock in your local store

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.

More Info

View all: MDF-Tite Flooring Screws

£8.79INC VAT

Add to basket for...

Check stock in your local store

MDF-Tite MDF Screws 3.9 x 40mm 200 Pack is rated 4.9 out of 5 by 10.
  • y_2021, m_1, d_15, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_GB, sid_40376, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 60ms
  • REVIEWS, PRODUCT

Add to saved list...

Save
Rated 5 out of 5 by from Great product Bit pricey but does the job well, I used them for some old Edwardian floorboards and they worked perfectly
Date published: 2020-09-04
Rated 4 out of 5 by from Great screws I have just finished building two whole wardrobes from MDF for a client and these have held up very well; the wardrobe feels solidly built, the screws start and enter the MDF very well (no more spinning screws) and finally they’re thin enough to not cause the MDF to blow and expand when they are driven through.
Date published: 2020-08-31
Rated 5 out of 5 by from Great brought these after being told about them for holding together a large 18mm MDF box . 2metres by 1. 6 screws in the corners and job done. expensive but cheaper than buying more MDF after breaking it.
Date published: 2019-09-20
Rated 5 out of 5 by from MDF Screws These are excellent MDF screws & very good value for money.
Date published: 2019-03-29
  • y_2021, m_1, d_15, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_10
  • loc_en_GB, sid_40376, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 184ms
  • REVIEWS, PRODUCT

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
  • y_2021, m_1, d_15, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_6
  • loc_en_GB, sid_40376, prod, sort_[SortEntry(order=LOCALE, direction=DESCENDING), SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 98ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: BV SEO Content for this product did not include verbose reviews.;
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