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Product Details

Self drilling screw with hex head and EPDM washers. Used for joining metal roofing sheet panels together. Salt spray tested to 1000 hours.

Technical Specification
Brand TechFast
Width (mm) 6.3
Manufacture ID TFHW16SD6325
Length (mm) 25
Pack Size 100
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

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

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Click & Collect details
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TechFast Hex/Washer Self Drilling Roof Screw 6.3 x 25mm (100 Pack) is rated 4.4 out of 5 by 9.
Rated 1 out of 5 by from Weak washers. Watch out for the washer. The pack I bought has thinner washers than the picture. They are so weak that they turn inside out very easily as you tighten. This pushes the seal away from the screw shaft so not watertight. On closer inspection I notice the washer might be BZP so not very long lasting outside either. In any case they are not going to perform. Looks like quality going downhill ?. Not the usual quality I get from Toolstation.
Date published: 2019-11-18
Rated 5 out of 5 by from Did the job! I used these to put the bracket on the Chimney breast for the TV. Very strong!
Date published: 2019-05-20
Rated 5 out of 5 by from roof screw techfast Hex/Washer Self Drilling Roof Screw 6.3 x 22mm does as expected
Date published: 2018-05-29
Rated 5 out of 5 by from Does what it says Use there and the job is easy
Date published: 2018-05-08
Rated 4 out of 5 by from Sweet All good .................
Date published: 2017-09-25
Rated 5 out of 5 by from As it says on the advert I bought this product to go through plastic corrugated type roofing it secured the sheet through to the OSB boards. On testing with a hose the washers done their job.
Date published: 2017-07-08
Rated 5 out of 5 by from Really good quality, used them to strengthen shed Really good quality, used them to strengthen metal shed, it was quicker to use this screw than a drill as well!
Date published: 2017-06-24
Rated 5 out of 5 by from Great screws for roofing sheets Great screws I used to fix poly carbonate sheets down. Only bug bare is that they don't have a smaller pack as a 50 pack would of been plenty for me.
Date published: 2016-12-15
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