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)

VIP Club Icon

VIP Members Club

Up to 10% off every order

Fast Delivery Icon

Fast Delivery

Next day delivery options

Products Icon

8,000 + Products

All in one place

Delivery Van Icon

Free Delivery

When you spend over £85

Call us icon red

Need Help?

Our team is here to help with orders, stock or product advice.

Call Us Logo
Call Us

07920120644

Mon - Fri 9am - 5pm

WhatsApp Us

07920120644

Quick replies

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 inc VAT. Orders under £85 inc VAT are charged at £9.95. We aim to dispatch orders placed before 3pm Monday to Friday on the same working day, with delivery to most UK mainland addresses typically taking 1–2 working days.

Some products have a longer delivery lead time, such as 3–4 working days. Where this applies, the expected delivery timeframe will be clearly stated on the individual product page. Orders may be dispatched from more than one location and items within the same order may therefore arrive separately. Please see our full Delivery & Returns Policy for further information.

Returns: Please inspect your goods as soon as reasonably possible after delivery and contact us promptly if anything is damaged, incorrect or appears to be faulty. Prompt notification helps us investigate delivery issues with our couriers and suppliers, but does not affect your statutory rights.

For consumer change-of-mind returns, you are responsible for arranging and paying the cost of returning the goods to us. Some products, including ladders, long-length building materials and other oversized goods, cannot normally be returned using standard postal services. For large, heavy or oversized goods that cannot normally be returned by post, we estimate that return carriage may cost up to £75 (including VAT) within the UK mainland. The actual cost will depend on the size and weight of the goods, the collection location and the carrier or return service used.

Please contact us before returning any goods so that we can provide the correct return address and any applicable return instructions or authorisation requirements. Different provisions apply to business customers and to goods that are faulty, damaged, incorrect or misdescribed. Please see our full Delivery & Returns Policy for full details.

Should you require any assistance, please email us at sales@fastfixingsonline.com, call us on 07920 120644, or complete our contact form. We are open Monday to Friday, 9am–5pm.