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To mark 30 years of trading this month, we have reduced our carriage paid threshold to £30 nett.

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Hex Washer Head Tek Screws BZP 4.8mm x 16mm DIN 7504K

  • C/W 14mm EPDM Sealing Washer
  • Drilling capacity: 1.75mm - 4.4mm
  • 8mm Hexagon head


£ 0.06 INC VAT (PRICED EACH)

£6.19 PER 100

(Include VAT?)   

BULK QUANTITY DISCOUNTS:

500+

£4.95

4000+

£4.33

QUANTITY:
 
2745 IN STOCK


Hexagon head self-drilling tek screws are a medium duty metal to metal tek screw, ideal for applications that require high insertion torque due to the hexagon drive. The hexagon head drive provides less slippage when installing which makes them very user friendly. Our hex head tek screws have a medium duty zinc CR3 plating to provide rust resistance. Includes a 14mm EPDM sealing washer to create a weatherproof seal. 


Features

  • Coarse self-tapping thread for extreme grip & excellent pull out
  • 14mm EPDM sealing washer to create a weatherproof seal
  • Hexagon head drive for high torque and less slip-out
  • Self-drilling point to drill through up to 4.4mm steel
  • Zinc CR3 plating

Specifics

External thread dia (d): 4.8mm
Head dia (dk): 10mm
Head height (k): 4.3mm
Across flats (s): 8.0mm
EPDM washer dia: 14mm
Length (l): 16mm
Material: Case hardened steel
Surface hardness: > 560 HV
Core hardness: 240 - 450 HV
Shear load: 3.56 kN*
Tension load: 7.11 kN*
Finish: Zinc CR3

*1 KN = 100 Kg. For tension loads, the inherent resistance of plates to be fixed must be taken into account, which is usually less than the resistance of the screw itself, as the screw will probably tear the plates.


technical line drawing of DIN 7504K hexagon head tek screws with EPDM sealing washer





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 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 £39.98

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


Courier Services

Service Delivery Time Cost
Standard Courier (Most Popular) 2–3 working days £6.98
Express Delivery 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 1.5 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

Hex Head Self-Drilling Tek Screws BZP c/w EPDM Sealing Washers

Size: 4.8x16mm
14mm EPDM Washer

SKU: SDSHW48016

2745 In Stock

£6.19 PER 100

Size: 5.5x22mm
16mm EPDM Washer

SKU: SDSHW55022

4720 In Stock

£8.67 PER 100

Size: 5.5x25mm
16mm EPDM Washer

SKU: SDSHW55025

200 In Stock

£7.72 PER 100

Size: 5.5x32mm
16mm EPDM Washer

SKU: SDSHW55032

1344 In Stock

£8.65 PER 100

Size: 5.5x38mm
16mm EPDM Washer

SKU: SDSHW55038

3413 In Stock

£8.88 PER 100

Size: 5.5x50mm
16mm EPDM Washer

SKU: SDSHW55050

9546 In Stock

£9.21 PER 100

Size: 5.5x60mm
16mm EPDM Washer

SKU: SDSHW55060

100 In Stock

£10.08 PER 100

Size: 5.5x63mm
16mm EPDM Washer

SKU: SDSHW55063

3399 In Stock

£16.87 PER 100

Size: 5.5x70mm
16mm EPDM Washer

SKU: SDSHW55070

1356 In Stock

£11.52 PER 100

Size: 5.5x75mm
16mm EPDM Washer

SKU: SDSHW55075

3078 In Stock

£14.54 PER 100

Our Address

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

Contact Details

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