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Product Details

Self drilling screw with countersunk head and wing tip. For fixing timber to heavy section steel. Salt spray tested to 1,000 hours. Torx bit in each pack.

Technical Specification
Manufacture ID TFCH5585
Length (mm) 85
Diameter (mm) 5.5
Screwhead Countersunk
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free


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Reviews
TechFast Heavy Duty Self Drilling Torx Roof Screw 5.5 x 85mm (50 Pack) is rated 4.5 out of 5 by 13.
Rated 5 out of 5 by from Brill Brill ?????????????????????????
Date published: 2019-05-04
Rated 3 out of 5 by from Not as good as I hoped I bought these to fix some timber noggins into a steel I beam. I read heavy duty as being able to drill straight into the steel. This turned out not to be the case, even though they have a cutting edge they would not go through the steel. My solution was to drill some pilot holes. The screws now went in much better although they were very sensitive to the speed of the drill. Too slow and they wouldn't cut in, too fast and they would melt / break off. Once the cutting edge was through the steel the threaded section bit into the steel and fixed the noggins securely.
Date published: 2019-04-26
Rated 3 out of 5 by from Hit and miss Hit and miss about a third of the screws snapped. Very frustrating when you are doing roofing
Date published: 2019-04-20
Rated 5 out of 5 by from Great! Great product great service.
Date published: 2019-04-12
Rated 5 out of 5 by from Went through steel! Did exactly what it said it could do! Very impressive
Date published: 2019-04-01
Rated 5 out of 5 by from great product Good price,rapid delivery
Date published: 2018-03-14
Rated 4 out of 5 by from Straight into an RSJ Bought to hang a chandelier in a clients house. It weighed over 30kg and there was only a steel joist to screw into. These did the job perfectly. The thing I will say, I only needed 8 to hold the light but I used 16 or so as i found that once you had used one to drill the pilot in the steel, it was not great at going and threading itself the rest of the way. Change to a new one after the pilot bit had finished and it worked great. I was unable to pilot the holes with a drill first due to location but that might have saved me a few screws.
Date published: 2018-03-01
Rated 5 out of 5 by from My saviour I needed to screw one inch wood planks to a five millimetre steel box frame to make two gates. 110 screws to each gate 220 in total. Plenty of recharging batteries but the job was done, and not one dud screw!
Date published: 2017-11-08
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