Order within --:--:-- for same-day dispatch In stock - ready to ship

Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)

M4 x 16mm Window Fabrication Screws - Countersunk Facet - Martensitic Stainless Steel & Silver Organic (Box Of 1000) - 231SS

£56.56 ex. VAT £47.13

Features:

🔩 Self-Drilling Point + PH Metric Thread — penetrates steel or aluminium reinforcement and taps in one action
⏺ Countersunk Facet Head — designed for a flush fit under hardware without protrusion
🛡 Martensitic Stainless Steel Body — suited for corrosive settings and outdoor exposure
✨ Silver Organic Finish — adds protective layer and blends with window hardware aesthetics
🏗 Auto-Feed Compatible — ideal for use in pinning reinforcement into PVCu frames via automatic machines

Description:
This window fabrication screw is specially engineered for attaching hardware to frames containing steel or aluminium reinforcement. Its self-drilling point eliminates the need for pilot holes, while the PH metric thread ensures robust grip in reinforced sections. The countersunk facet head allows the screw to sit flush beneath fittings, giving a clean, professional finish. Constructed of martensitic stainless steel and coated in a silver organic layer, it offers strong resistance to corrosion and suits outdoor and damp conditions. Often used with auto-feed machines for “pinning” steel reinforcement inside PVCu profiles, this screw is ideal for window fabricators, glaziers, and installers seeking reliable, efficient fasteners for frame integration.

Our Delivery Options

Express 1/3 Day Delivery

Delivery Fee:
- £3.79 delivery for orders under £30
- Free delivery for orders over £30
Order By:
- 2:30pm
Delivery Time: Before 6pm Monday-Friday

Next Business Day Delivery

Delivery Fee:
- £7.50
Order By:
- 2:30pm
Delivery Time: Before 6pm Monday-Friday

Pre-12 Next Business Day Delivery

Delivery Fee: £16.99 delivery for all pre-12 orders (Weekend Only)
Order By:
- 2:30pm
Delivery Time: Before 12pm Monday-Friday

Remote Areas Delivery

Delivery Fee:
- £3.99
Order By:
- 2:30pm
Delivery Time: Standard delivery (2-4 days)

Weekend Delivery

Delivery Fee:
- £19.99
Order By:
- 2:30pm Friday
Delivery Time: Before 6pm Saturday

Good To Know

For orders to some addresses, especially in the Highlands of Scotland and Offshore, next day delivery options are not available and delivery can take several days. Saturday delivery is not available for remote areas.

Items over 30kg: Items over 30kg can only be delivered from Monday to Friday. If ordered before 3pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.

Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)

Frequently bought together

Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)

£56.56

TIMCO Nylon Insert Nuts – Zinc Plated, DIN 982 Metric Lock Nuts – Nylon-Insert Lock Nuts

£7.59

M6 Spring Washers – Zinc | Anti-Loosening Lock Washers for Bolts & Nuts | Carbon Steel DIN 7980

£2.20

Total price:

Free delivery on orders over £30
30-day easy returns
Download datasheet (PDF)

BRAND: TIMCO

Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)

Name: Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)
Brand: TIMCO
SKU: 231SS
Price: 56.56 GBP
Availability: InStock

purchased in the last 24 hours

£56.56 inc VAT

£47.13 ex VAT

Bulk price from £9.00 each inc VAT

Same Day Dispatched

In stock, ready to ship
Inventory on the way

Secure Payment

Pay in 30 days

[{"id":56157159326070,"title":"M4 x 16mm Window Fabrication Screws - Countersunk Facet - Martensitic Stainless Steel \u0026 Silver Organic (Box Of 1000) - 231SS","option1":"M4 x 16mm Window Fabrication Screws - Countersunk Facet - Martensitic Stainless Steel \u0026 Silver Organic (Box Of 1000) - 231SS","option2":null,"option3":null,"sku":"231SS","requires_shipping":true,"taxable":true,"featured_image":{"id":79695277392246,"product_id":15312099639670,"position":1,"created_at":"2025-11-17T13:28:09+00:00","updated_at":"2025-11-17T13:28:09+00:00","alt":null,"width":500,"height":500,"src":"\/\/ukfixingsdirect.com\/cdn\/shop\/files\/231SS_w1.jpg?v=1763386089","variant_ids":[56157159326070]},"available":true,"name":"Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs) - M4 x 16mm Window Fabrication Screws - Countersunk Facet - Martensitic Stainless Steel \u0026 Silver Organic (Box Of 1000) - 231SS","public_title":"M4 x 16mm Window Fabrication Screws - Countersunk Facet - Martensitic Stainless Steel \u0026 Silver Organic (Box Of 1000) - 231SS","options":["M4 x 16mm Window Fabrication Screws - Countersunk Facet - Martensitic Stainless Steel \u0026 Silver Organic (Box Of 1000) - 231SS"],"price":5656,"weight":1220,"compare_at_price":null,"inventory_management":"shopify","barcode":"5055017529711","featured_media":{"alt":null,"id":67651419537782,"position":1,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/ukfixingsdirect.com\/cdn\/shop\/files\/231SS_w1.jpg?v=1763386089"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

Frequently bought together

Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)

£56.56

TIMCO Nylon Insert Nuts – Zinc Plated, DIN 982 Metric Lock Nuts – Nylon-Insert Lock Nuts

£7.59

M6 Spring Washers – Zinc | Anti-Loosening Lock Washers for Bolts & Nuts | Carbon Steel DIN 7980

£2.20

Total price:

Features:

🔩 Self-Drilling Point + PH Metric Thread — penetrates steel or aluminium reinforcement and taps in one action
⏺ Countersunk Facet Head — designed for a flush fit under hardware without protrusion
🛡 Martensitic Stainless Steel Body — suited for corrosive settings and outdoor exposure
✨ Silver Organic Finish — adds protective layer and blends with window hardware aesthetics
🏗 Auto-Feed Compatible — ideal for use in pinning reinforcement into PVCu frames via automatic machines

Prices drop automatically as you add more to your basket — no code needed. Prices shown inc VAT.

Free express delivery on all orders over £30. Choose your speed at checkout.

Express Delivery

1–3 working days

Orders under £30: £3.79
Orders over £30: FREE

Next Day Delivery

Order by 2pm Mon–Fri

All orders: £7.50

FREE for Gold members

Pre 12 Delivery

Next working day, by midday

All orders: £16.99

Pre 10.30 Delivery

Next working day, by 10:30am

All orders: £19.99

Weekend Delivery

Saturday & Sunday

Orders under £30: £13.99
Orders over £30: £7.50

Remote Areas Delivery

Highlands, islands & remote postcodes

Orders under £30: £5.49
Orders over £30: £3.00

Orders before 2pm Mon–Fri dispatch same day. Remote-area surcharges apply to Highlands, islands & selected postcodes. All prices include VAT.

Free Shipping Over £30
Orders over £30 ship free.
30 Day Easy Returns
Not right for the job? Send it back within 30 days for a full refund.
100% Secure Checkout
Shop with complete peace of mind.

Trusted Brands

The names the trade relies on all in stock.

Shop by category

Our Delivery Options

Good To Know

Frequently bought together

Window Fabrication Screws Countersunk Facet PH Metric Thread Self-Drilling Point Martensitic Stainless Steel Silver Organic (1000 pcs)

Frequently bought together

Free Shipping Over £30

30 Day Easy Returns

100% Secure Checkout

Trusted Brands