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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, and Zinc and yellow-passivated.

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, and Zinc and yellow-passivated.
Average Customer Rating:
5 out of 5
5
 out of 
5
Open Ratings Snapshot
Rating Breakdown 1 review
5 stars
1
4 stars
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3 stars
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1 star
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1 of 1(100%)reviewers would recommend this product.
Customer Reviews for Mdf-Tite Screws 3.9 x 40mm Pack of 200
Review 1 for Mdf-Tite Screws 3.9 x 40mm Pack of 200
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
Would you recommend this product? Yes
Overall Rating: 
5 out of 5
5 out of 5
Value: 
5 out of 5
5 out of 5
Features: 
5 out of 5
5 out of 5
Performance: 
5 out of 5
5 out of 5
Reliability: 
5 out of 5
5 out of 5
MDF screws
13 Nov 2012
By Jack123
, London
" Best screw ever used for joining boards of MFD. Other screws would split boards or not holding joints very strongly. "
1 of 1 people found this review helpful.