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Metal Construction Screws | Fixings for Sheet Metal, Timber-to-Metal & Steel

Our range of metal construction screws includes high-performance fixings for joining sheet metal to metal, timber to steel, and heavy-gauge metal connections. Designed for strength, precision, and corrosion resistance, these screws are essential for structural builds, cladding, roofing, fencing, and steel frame installations.

Self-drilling tek screws for metal-to-metal and steel fixing
Timber-to-metal screws for decking frames, roofing battens & fence rails
✅ Hex head, countersunk, and wafer head options available
✅ Coated for high corrosion resistance — ideal for outdoor and industrial use
✅ Suitable for light, medium, and heavy-gauge steel

Trusted by roofers, steel fabricators, builders, and cladding installers, these fixings deliver maximum grip and durability in even the toughest conditions.

✔️ Available in a range of lengths and head styles
✔️ Supplied in trade boxes or packs
✔️ Nationwide delivery available

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6.3mm X 45mm METAL FIX GASH POINT SCREW 8 ZINC PLATED STEEL TO WOOD WITH 16mm WASHER

Original price £9.00 - Original price £9.00
Original price
£9.00
£9.00 - £9.00
Current price £9.00
In stock

Self drilling tek screws for fixing metal sheets to timber sections. Sharp gash point for fast installation. No pre-drilling required Bonded neopre...

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Original price £9.00 - Original price £9.00
Original price
£9.00
£9.00 - £9.00
Current price £9.00

Timco - Wafer Screw PH2 SHARP Zinc 8 x 9/16 - 1000 pcs

Original price £11.58 - Original price £11.58
Original price
£11.58
£11.58 - £11.58
Current price £11.58
In stock

Original price £11.58 - Original price £11.58
Original price
£11.58
£11.58 - £11.58
Current price £11.58

Timco - Wafer Screw PH2 S/DRILL Zinc 8 x 9/16 - 1000 pcs

Original price £8.84 - Original price £8.84
Original price
£8.84
£8.84 - £8.84
Current price £8.84
In stock

Original price £8.84 - Original price £8.84
Original price
£8.84
£8.84 - £8.84
Current price £8.84

Timber to light section wing tip screws - 5.5mm x 85- box of 100 10-743

Original price £18.79 - Original price £18.79
Original price
£18.79
£18.79 - £18.79
Current price £18.79
In stock

Original price £18.79 - Original price £18.79
Original price
£18.79
£18.79 - £18.79
Current price £18.79

Timber to light section wing tip screws - 5.5mm x 85- box of 100

Original price £18.79 - Original price £18.79
Original price
£18.79
£18.79 - £18.79
Current price £18.79
In stock

Timber to light section wing tip screws - 5.5mm x 85- box of 100

Original price £18.79 - Original price £18.79
Original price
£18.79
£18.79 - £18.79
Current price £18.79

Timber to light section wing tip screws - 5.5mm x 65- box of 200

Original price £22.86 - Original price £22.86
Original price
£22.86
£22.86 - £22.86
Current price £22.86
In stock

Original price £22.86 - Original price £22.86
Original price
£22.86
£22.86 - £22.86
Current price £22.86

Timber to HEAVY section wing tip screws - 5.5mm x 65- box of 200 10-751

Original price £35.41 - Original price £35.41
Original price
£35.41
£35.41 - £35.41
Current price £35.41
In stock

Original price £35.41 - Original price £35.41
Original price
£35.41
£35.41 - £35.41
Current price £35.41

Timber to light section wing tip screws - 5.5mm x 65- box of 200

Original price £22.86 - Original price £22.86
Original price
£22.86
£22.86 - £22.86
Current price £22.86
In stock

Timber to light section wing tip screws - 5.5mm x 65- box of 200

Original price £22.86 - Original price £22.86
Original price
£22.86
£22.86 - £22.86
Current price £22.86

Timber to HEAVY section wing tip screws

Original price £35.41 - Original price £35.41
Original price
£35.41
£35.41 - £35.41
Current price £35.41
In stock

Original price £35.41 - Original price £35.41
Original price
£35.41
£35.41 - £35.41
Current price £35.41

5.5 x 85 - Metal Construction Timber to Heavy Section Screws - Countersunk - Wing-Tip - Self-Drilling - Exterior - Silver Organic - Box of 100

Original price £44.24 - Original price £44.24
Original price
£44.24
£44.24 - £44.24
Current price £44.24
In stock

Specifically designed to attach wood to metal (Max. 12mm). Metric thread with wings designed to ream out the timber, so the screw can achieve Max. ...

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Original price £44.24 - Original price £44.24
Original price
£44.24
£44.24 - £44.24
Current price £44.24

5.5 x 55 - Metal Construction Heavy Section Screws - Hex - Self-Drilling - Bi-Metal - Exterior - Silver Organic - Box of 100

Original price £41.94 - Original price £41.94
Original price
£41.94
£41.94 - £41.94
Current price £41.94
In stock

Original price £41.94 - Original price £41.94
Original price
£41.94
£41.94 - £41.94
Current price £41.94

5.5 x 55 - Metal Construction Heavy Section Screws - Hex - Self-Drilling - Bi-Metal - Exterior - Silver Organic - Box of 100

Original price £41.94 - Original price £41.94
Original price
£41.94
£41.94 - £41.94
Current price £41.94
In stock

5.5 x 55 - Metal Construction Heavy Section Screws - Hex - Self-Drilling - Bi-Metal - Exterior - Silver Organic - Box of 100

Original price £41.94 - Original price £41.94
Original price
£41.94
£41.94 - £41.94
Current price £41.94

Alter Supplies & Contracting

4.9

93 reviews on

Caroline Clulow
September, 2025
This may sound crazy but, honestly, I've never had such good service. Young men, mostly, who were knowledgeable and so helpful. Don't google for wood, most places are very expensive. Pieces that were £15 on Google were £4 here. 1.8 metre slats at £1.20. Great company.
George Davies
August, 2025
Friendly polite staff nothing to much trouble fast home delivery service would recommend to everyone
Adam Plenderleith (RevRev)
August, 2025
Another delivery from Alter Supplies today. Amazing service even for a relatively small order. Timber and slabs delivered promptly by a very cheery young man! An easy 5* given!