Mighty Mule FM500 Parts - HB100 Hardware Brackets FM500
The HB100 is a hardware bracket set for selected Mighty Mule, GTO and Linear PRO swing gate opener installations. These brackets provide the mounting points that connect the opener arm to the gate post and gate leaf. Because the operator pushes and pulls through these brackets on every cycle, solid bracket hardware is essential for smooth movement and reliable stopping.
This set is commonly used with FM350, FM352, FM500, FM502 and FM600 style Mighty Mule operators and is also listed for several current Mighty Mule MM series models. Each arm needs the correct bracket set so the operator can maintain the right geometry, leverage and clearance. On dual gate systems, bracket requirements should be checked per arm.
HB100 is commonly purchased when brackets are missing from a used operator, damaged from impact, rusted beyond reuse, or when the gate opener is being moved to a different post or gate. Replacing bracket hardware should be done together with a check of the gate hinges, stops, post condition and arm mounting dimensions.
Compatible With
The HB100 hardware bracket set is commonly associated with these Mighty Mule and GTO/Linear swing gate opener applications:
- Mighty Mule FM350 and FM352 swing gate openers
- Mighty Mule FM500 and FM502 swing gate openers
- Mighty Mule FM600 swing gate opener
- Mighty Mule MM271 and MM272 current model references
- Mighty Mule MM371W and MM372W current model references
- Mighty Mule MM571W and MM572W current model references
- Select older GTO / Linear PRO and Mighty Mule arm systems where the HB100 bracket set is specified
- Each opener arm typically requires one bracket set
Features & Specifications
| Manufacturer | GTO / Linear PRO / Mighty Mule family |
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| Product Type | Hardware bracket set |
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| Part Number | HB100 |
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| Application | Swing gate opener arm mounting |
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| Compatible Operator Type | Select single and dual linear arm swing gate openers |
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| Included Components | Bracket set; contents may vary by production run |
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| Notes | One bracket set is typically required per operator arm |
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Also Known As / Related Part Numbers
- HB100
- HB-100
- SR-HB100
- LIN-HB100
- GTO HB100
- Mighty Mule HB100
- hardware brackets box
- hardware bracket set
- FM500 bracket set
- FM502 bracket set
Technician Note
If a bracket is bent, check why it bent. Gate sag, missing stops, incorrect geometry or an impact can damage new hardware if the root problem is not corrected.
Before Ordering Checklist
- Confirm the operator model uses HB100 bracket hardware.
- Determine whether the installation is single or dual arm and how many sets are needed.
- Compare the original brackets and mounting holes to the replacement set.
- Inspect the gate post, gate frame, hinges and stops before reusing the operator.
- Do not mix bracket sets from unrelated arm models unless confirmed by the manual.
Important Ordering Warnings
HB100 may be shown as HB-100 or SR-HB100 in different listings. Related naming does not guarantee fitment on every model; confirm the operator manual.
Professional Advisory
Bracket installation affects gate force and movement. If the gate is heavy, binding or missing stops, have it corrected before installing replacement brackets.
Product Questions & Answers
What is included with the HB100 part?
HB100 is a hardware bracket set used for mounting select Mighty Mule swing gate opener arms. Kit contents can vary by production run, so compare with the parts diagram if exact hardware is critical.
Which Mighty Mule models commonly use HB100?
It is commonly listed for FM350, FM352, FM500, FM502, FM600 and several current MM series models such as MM271, MM272, MM371W, MM372W, MM571W and MM572W.
How many HB100 sets do I need for a dual gate?
Each opener arm generally requires one bracket set, so a dual gate system may need two sets if both arms are being fully rebracketed.
Is HB100 the same as a small hardware bag?
No. HB100 refers to bracket hardware. H101P is a separate hardware bag/kit used with certain models.
Can I reuse old brackets with a new opener arm?
Only if they match the operator manual and are not bent, worn or corroded. Incorrect brackets can cause binding and poor gate travel.
