Timco Carbon Steel Self-Drilling Roofing Screws 5.5 x… (45475)

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Timco Carbon Steel Self-Drilling Roofing Screws 5.5 x 25mm 100 Pack (45475)

Designed for attaching roofing sheets to 5mm light gauge steel purlin without the need to pre-drill. Once installed the EPDM washer prevents water ingress.

  • Hex
  • Suitable for 5mm Light Section Steel
  • Corrosion-Resistant
  • Self-Drilling up to 5mm

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View all: Timco Self Drilling Screws

£8.49INC VAT

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Timco Carbon Steel Self-Drilling Roofing Screws 5.5 x 25mm 100 Pack is rated 4.7 out of 5 by 15.
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Rated 5 out of 5 by from Gerbert. I have used these fixings for years and not just for roof panels. They are great for sign fixings and many other outdoor product fixing, as they are very secure do not rust.All in all a great product in all sizes.
Date published: 2021-05-15
Rated 5 out of 5 by from Timco Good products friendly staff fast service will go again
Date published: 2020-11-15
Rated 5 out of 5 by from Holds things together I have used these for fixing down metal roof sheets and thin boarding using these and the longer variety and they fix quite adequately providing they are not overtightened. Good, quick method of fixing where some degree of water sealing required
Date published: 2020-05-13
Rated 5 out of 5 by from Great way to build your metal Brought a metal shed, assembly required. After struggling away for hours with limited success assembling the shed with the conventional screws decided to scan the internet for an alternative. Initially purchased similar via internet but at a premium price. Needless to say they performed exceptionally well. Needed more to complete the job. I searched the internet and discovered these Screwfix ‘self drilling screws’ to be the best overall value and excellent performance too. Tested the metal shed roof for water tight performance and there’s no leaks or seeping. Driving head fits well into socket spanner for electric screwdriver and will drive into and through metal sheets. Thickness related to my metal shed panels. Conclusion. Excellent performance Watertight Easy to use Project saver! Usual Screwfix value!
Date published: 2019-05-20
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Can you get Hex Caps for these?

The intention is to secure Box Profile sheets (0.7mm) into a steel frame on a garage roof. The sheets are black so I'm looking for black caps to cover the bolts.
Asked by: Paddit

Can I use these to fix wood to steel?

I'm attaching fencing to a steel frame. Can these be used to attach the timber?
Asked by: Robin1
This item is designed for and generally used in steel to steel applications.
Answered by: TIMco Technical Team
Date published: 2019-09-15

What are the precise dimensions of the the screws' head and washers please?

Asked by: SteveTz
Hex head is 8mm across the flats, fixed washer is 12mm. If the product has an EPDM washer, that is 16mm.
Answered by: TIMco Technical Team
Date published: 2020-06-15

What size is the hex head?

What size of socket will I need for these screws?
Asked by: HappyDIYer1
Either an 8mm or 5/16" socket driver.
Answered by: TIMco Technical Team
Date published: 2020-11-17
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Specification
Brand Timco
CE Standard (Tested to EN...) EN 14592.
Construction Material (Screws) Carbon Steel
Drive Type Hex
Head Type Hex
Indoor/Outdoor Usage Outdoor
Manufacturer Guarantee 1 Year Guarantee
Pack Size 100
Pieces in Pack/Case 100
Product Diameter 5.5 mm
Product Length 25 mm
Product Type Self-Drilling Roofing Screws
Screw Diameter (mm) 5.5 mm
Screwdriver Type Hex
Suitable Use Type Suitable for 5mm Light Section Steel