Timco Heavy Section Self-Drilling Screws – Hex – EPDM Washer – Zinc – 5.5mm x 38mm – Box of 100

Pack Quantity:
100
SKU: H38W16BB

Heavy section self-drilling screws for fixing metal into steel up to 12mm without pre-drilling. Fully threaded with V flutes and torque-reducing slash for smooth installation. Supplied with an EPDM washer for sealing and finished in bright zinc for internal or low-corrosion environments.

£8.74 ex VAT(£10.49 inc VAT)

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Description

Heavy section self drilling screws zinc 38mm are designed for fast and secure fixing into steel without pre-drilling. The No.5 drill point cuts through steel up to 12mm, which helps speed up installation and maintain efficiency on site.

In addition, the fully threaded design provides consistent grip along the full length of the screw. The metric thread with V flutes and torque-reducing slash helps reduce resistance during installation. As a result, the screw drives smoothly and delivers a strong, controlled fixing.

Each screw also includes an EPDM washer. This helps form a seal at the fixing point and adds stability during installation. The bright zinc finish provides corrosion protection in clean, dry, and low humidity environments, making these screws suitable for internal applications or sheltered use.

Key Features

  • Self-drilling No.5 point for steel up to 12mm
  • Heavy section self drilling screws zinc 38mm for steel fixing
  • Fully threaded for consistent grip and holding strength
  • Metric thread with V flutes and torque-reducing slash
  • EPDM washer for added sealing and stability
  • Bright zinc finish for clean, low humidity environments
  • Case and core hardened carbon steel construction
  • Suitable for steel substrates
  • Conforms to BS EN 10666 (DIN 7504)
Features
Weight 0.78 kg
Approval

BS EN 10666 (DIN 7504)

Brand

Timco

Corrosion Rating (1-5)

3 – Urban & industrial areas with a low salt atmosphere

Drill Tip L (mm)

15

Effective Thread L (mm)

16

EPDM Washer (mm)

16

Finish

Exterior (Silver Organic)

Fixed Washer Dia. mm

12

Head H (mm)

5.6

Head Type

Hex

Length mm

38

Material

Case & Core Hardened Carbon Steel

MDT (mm)

12

Pack Qty

100

Pack Type

TIMbag

Point Type

Self-Drilling No.5

Size

5.5mm x 38mm

Socket Size mm

8

Substrates

Steel

Thread Coverage

Fully Threaded

Thread Dia. mm

M5.5

Thread Type

Metric with V Flutes & Torque Relieving Slash

Delivery & Returns

All orders to the UK mainland are free of charge over £85. Orders under £85 inc VAT are charged at £9.95. We aim to dispatch all orders placed before 3pm to UK mainland postcodes on a next working day service. Some or all items in your order may be shipped directly from our suppliers. Unless otherwise stated during checkout, all direct shipments are processed on next day services with our supplier’s respective courier partners. Please note: This applies to postcodes on the UK mainland that do not require local third-party courier companies for delivery to hard-to-reach areas. Please see full details of our delivery policy.

Upon delivery, please inspect your goods thoroughly. If there are any issues, notify us within 72 hours of signing for the goods. You can contact us via the contact form or by emailing us at sales@fastfixingsonline.com with any requests to return the goods. For our full returns policy please visit our returns page.

Should you require any assistance or have any questions, please email us at sales@fastfixingsonline.co.uk, call us on 07920120644, or complete our contact form. We are open Monday to Friday 9am - 5pm.