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Heco Topix Countersunk TX25 A2 Stainless 6.0 x 100mm

  • TX25 Drive 11.6mm diameter CSK head
  • Heco part number: HEC40372
  • Ideal for oak sleepers


£ 1.01 INC VAT (PRICED EACH)

(Include VAT?)   

BULK QUANTITY DISCOUNTS:

100+

£0.77

400+

£0.71

QUANTITY:
 
33 IN STOCK


The HECO-TOPIX 6 x 100mm A2 stainless steel countersunk screw is a high-performance timber screw designed for fast, secure fixing in a wide range of timber construction and woodworking applications. Its countersunk head provides a neat, flush finish, while the TX25 drive allows positive torque transfer during installation.

Manufactured from A2 stainless steel, the screw provides good corrosion resistance for internal and external applications where stainless steel is required. The HECO-TOPIX design incorporates specialist tip and thread geometry to support fast installation, reduce the risk of timber splitting and provide reliable fixing performance.


The HECO-TOPIX is a specialist timber screw designed for efficient and reliable fixing in timber construction and woodworking applications.

Key features include:

  • HECO-TOPIX tip: designed to penetrate timber efficiently, helping to reduce splitting and allowing reduced edge and centre distances.
  • Countersunk head: provides a neat, flush finish when correctly installed.
  • TX25 drive: provides positive engagement and effective torque transfer during installation.
  • A2 stainless steel: provides good corrosion resistance for internal and external applications.
  • Specialist thread geometry: designed to support efficient installation and reliable holding performance.
  • Structural application: suitable for a wide range of professional timber construction and woodworking applications.

HECO-TOPIX screws are suitable for a wide range of timber construction, carpentry and woodworking applications.

Typical applications include:

  • Structural timber construction
  • Oak sleeper and landscaping projects
  • Staircase construction
  • Interior timber construction and finishing
  • Timber framing and general carpentry
  • On-rafter insulation applications
  • Facade attachment and timber cladding
  • General woodworking and joinery

The appropriate screw diameter and length should be selected according to the timber species, connection design, required penetration and expected loads.


  • European Technical Assessment: HECO-TOPIX structural timber screws are covered by applicable European Technical Assessment documentation.
  • Material: A2 stainless steel.
  • Drive: TX25 internal six-lobe drive.
  • Head type: Countersunk head.

For structural applications, the appropriate HECO technical documentation and project or construction specification should be followed. Always confirm the required dimensions, material grade and performance requirements for the intended application.


Is this HECO-TOPIX screw suitable for outdoor use?

Yes. This HECO-TOPIX screw is manufactured from A2 stainless steel, providing good corrosion resistance for internal and external timber applications. It is suitable for many outdoor applications where A2 stainless steel is appropriate, including landscaping, timber construction, cladding and general external woodworking.

What drive bit does the HECO-TOPIX 6 x 100mm screw use?

This screw uses a TX25 internal six-lobe drive. A suitable TX25 bit should be used during installation to provide positive engagement and effective torque transfer.

What is the HECO-TOPIX 6 x 100mm screw used for?

The HECO-TOPIX 6 x 100mm screw is designed for timber construction and woodworking applications. Typical uses include structural timber connections, timber framing, staircase construction, landscaping, timber cladding, facade attachment and general carpentry.

Does this screw need a pilot hole?

Pre-drilling is not normally required in many timber applications because of the screw's specialised tip and thread design. However, pre-drilling may be appropriate depending on the timber species, screw position, edge distance and the requirements of the particular installation.

What is the difference between A2 and A4 stainless steel screws?

A2 stainless steel provides good corrosion resistance for many internal and external applications. A4 stainless steel offers a higher level of corrosion resistance and is generally selected for more demanding environments, including applications exposed to higher levels of salt or aggressive atmospheric conditions. The appropriate stainless steel grade should be selected according to the environment and application.


Specifics

Diameter (d): 6mm
Length (l): 100mm
Head type: Countersunk
Drive: TX25
Head diameter: 11.6mm
Fastener type: Structural timber screw
Material: A2 stainless steel
Finish: Stainless steel
Heco part number: HEC44125

Technical line drawing of a HECO-TOPIX A2 stainless steel countersunk timber screw

Installation: Select the correct screw length and diameter for the timber and application. Use a suitable TX25 bit and apply controlled driving torque to ensure positive engagement and a flush countersunk finish. Pre-drilling may be considered depending on the timber species, edge distance and installation requirements. For structural applications, always follow the relevant manufacturer and project specifications.





Delivery Options

TC Fixings Ltd offers a range of delivery services across the UK to suit different order sizes and delivery times. Orders are dispatched using reliable courier and postal services to ensure products arrive quickly and safely.


Delivery Summary

  • Free delivery: Orders over £30 nett qualify for free delivery

  • Same-day dispatch: Orders placed before 15:00 Monday–Friday are usually dispatched the same day (subject to stock availability)

  • Collection: Available from our premises

  • Local delivery: Free van delivery available in Saffron Walden and surrounding villages


Free Delivery

Orders over £30 nett qualify for free delivery.

If your order is close to the threshold, adding additional items may allow you to qualify for free delivery.

Free delivery applies to standard mainland UK delivery only.


Delivery Charges

Orders under £30 nett are subject to carriage charges. Available delivery options are shown below.


Royal Mail Services (Up to 2kg)

Service Delivery Time Cost
Royal Mail Standard 48 Tracked 3–5 working days £4.99
Royal Mail 24 Tracked (Most Popular) 1–3 working days £5.99
Special Delivery by 1pm Next working day £14.99
Special Delivery by 9am Next working day £49.99

Royal Mail services are available for consignments up to 2kg.


Courier Services

Service Delivery Time Cost
Standard Courier 2–3 working days £6.98
Express Delivery (Most Popular) 1–2 working days £8.99
Next Working Day by 13:00 Next working day £10.99
Next Working Day by 11:00 Next working day £14.99
Saturday Delivery Saturday £9.98

Orders placed before 15:00 Monday–Friday are normally dispatched the same working day, subject to stock availability.


Delivery Surcharges

Additional charges may apply in certain circumstances.

Extended Delivery Areas

Orders to the following locations may incur additional delivery charges:

  • Isle of Wight

  • Isle of Man

  • Scottish Highlands

  • Scottish Isles

  • Northern Ireland

  • Channel Isles

These charges will be shown at checkout where applicable.

Long Item Surcharge

Items measuring 1.1 metres or longer are subject to a £12 length surcharge per shipment.


Dispatch Information

Orders placed before 15:00 Monday–Friday are normally dispatched the same working day when all items are in stock.

Orders placed after this time, or on weekends and bank holidays, will be dispatched on the next working day.

Next working day delivery services apply Monday–Friday excluding bank holidays.


Collection

Customers may collect orders from our premises.

Collection orders are normally ready within 1 hour, provided all items are in stock. Please wait for confirmation before travelling to collect your order.


Local Van Delivery

TC Fixings offers a free local van delivery service to customers in Saffron Walden and surrounding villages.

Please contact our team for further information if you are located in this area.


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Product Variations

Heco Topix Countersunk TX25 A2 Stainless

6mm Dia
Length 80mm

SKU: HEC44125

83 In Stock

£0.93 EACH

6mm Dia
Length 100mm

SKU: HEC40372

33 In Stock

£1.01 EACH

6mm Dia
Length 120mm

SKU: HEC40376

80 In Stock

£1.22 EACH

6mm Dia
Length 140mm

SKU: HEC40378

105 In Stock

£1.71 EACH

6mm Dia
Length 160mm

SKU: HEC40380

100 In Stock

£1.98 EACH

Our Address

Unit 39, Shirehill Industrial Estate
Saffron Walden, Essex, CB11 3AQ

Contact Details

Telephone: 01799 520640
Email: sales@tcfixings.co.uk