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SKU: 8384

Hammerhead bolt M8 × 20 | Galvanized | Fastening roller brackets to side hinges

Regular price €52,59
Tax included Shipping calculated at checkout.

Hammerhead bolt M8 × 20 | Galvanized | Fastening for roller holders & side hinges

The M8 × 20 hammerhead bolt is the perfect solution for quickly and securely attaching roller brackets to the side hinges of sectional doors without the risk of bolts falling off. Ideal for pre-assembly and professional installation processes.

Technical data

Area of ​​application:
IND & RES
ERA-IND / ERA-RES:
ERA-IND & ERA-RES
Format:
M8
Length:
20 mm
Type:
Hammerhead bolt
Material:
Steel
Surface:
Galvanized
Application:
Attaching roll holders to side hinges

Features & Benefits

  • The hammerhead prevents it from falling out during installation.
  • Perfectly suited for side roller holders on sectional doors.
  • Pre-assembly with nut possible – significantly faster workflows.
  • The M8 format ensures high stability and secure load transfer.
  • Galvanized steel provides reliable protection against corrosion.
  • Ideal for professional gate builders, fitters & service calls.

Application & Assembly

The M8 × 20 hammerhead bolt is inserted into the hinge bracket and locks automatically without falling out. The roller holder can then be easily pulled against the hinge using the pre-installed nut – quickly, cleanly, and securely.

Safety and occupational health:
When installing gate systems, hand protection, the correct tools, and stable positions must be observed. Roller brackets bear safety-relevant forces – incorrect fastenings can lead to malfunctions or accidents. Tormeister 24 always recommends installation by trained professionals.

Practical example

During the repair of an industrial sectional door, the roller bracket was replaced. Thanks to the M8 × 20 hammerhead bolt, the technician was able to secure the roller bracket with one hand, as the bolt could no longer slip out – halving the installation time and increasing safety.

FAQ – Frequently Asked Questions

Why a hammerhead bolt and not a normal bolt?

The hammerhead prevents the bolt from falling through during assembly – saving time and increasing safety.

Is the bolt suitable for industrial and garage use?

Yes, it is suitable for both areas (IND & RES) – a universal spare part.

Is the galvanizing sufficient for outdoor use?

For normal outdoor areas, yes. For extremely corrosive environments, we recommend stainless steel versions.

Order hammerhead bolts now

Get the M8 × 20 hammerhead bolt – perfect for quick, secure reel holder mounting on side hinges.

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Delivery information

Shipping options | Costs & delivery times

Germany

- 5,90 € (1 - 8 working days)

- Order value from 300,00 € free of charge (1 - 8 working days)

- Garage doors free of charge (4-5 weeks)

Austria 

- 13,00 € (1 - 8 working days)

- Order value from 300,00 € free of charge (1 - 8 working days)

- Garage doors 90,00 € (4-5 weeks)

Luxembourg

- 13,00 € (1 - 8 working days)

- Order value from 300,00 € free of charge (1 - 8 working days)

- Garage doors free of charge (4-5 weeks)


Countries we ship to
Germany, Austria, Luxembourg*

*excluding islands

Delivery information for gates and doors

Pickup information:
Ordering and collection: Order online and collect the gate personally from our warehouse.

Delivery notice: The delivery notice provided by us after production is provisional and not legally binding. Deviations, e.g. due to traffic volumes or disruptions, do not give rise to claims for complaint.

Conditions for free freight of gates and doors:

-Please provide your mobile number when ordering
- Please ensure that someone is present to receive the goods on the scheduled delivery date. If someone is not present, please contact us.
- Our delivery is made with a truck combination of 18 meters in length.
- For unloading with a truck-mounted forklift we need sufficient space around the vehicle.
- Your address must be accessible; consider access roads, tight curves, posts, overhanging trees, etc.

Important points:
- The driver unloads the goods at the address specified when ordering.
- Unloading at other locations is the responsibility of the customer; we are not liable for damage at unsafely chosen unloading locations.
- If there are problems with space for unloading with the truck-mounted forklift, please ensure that there are enough unloading personnel available in advance.

Special cases:
- If your address cannot be reached by truck, please contact us before ordering to ensure optimal delivery and avoid damage.

If you have any further questions or special cases, please do not hesitate to contact us.

Which payment methods are accepted?

You can choose between the following payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • USDC
  • Visa

Prepayment by bank transfer, Shop Pay, Visa, Mastercard, American Express, Maestro, UnionPay, Apple Pay, Google Pay, EPS, Klarna invoice