Product Overview
The HB100 hardware bracket set is a replacement mounting bracket kit used to secure the actuator arm to the gate and post mounting points on select Mighty Mule, GTO, and Linear swing gate openers. On a FM352 parts page, this is the kind of hardware customers usually look for when the original brackets are bent, worn at the pivot points, missing after a gate repair, or no longer allowing the opener arm to sit at the correct geometry. Bracket fitment matters because swing gate operators rely on proper leverage and pivot spacing; the wrong bracket or a mismatched post-pivot setup can cause binding, short travel, limit problems, or excess stress on the actuator. This page is written for replacement hardware shoppers who already have a compatible Mighty Mule or GTO style arm and need to restore the original mounting hardware, not convert an incompatible operator.
Compatible With
Primary Mighty Mule / Linear applications
- Mighty Mule FM350 single swing gate openers
- Mighty Mule FM352 dual swing gate openers
- Mighty Mule FM500 single swing gate openers
- Mighty Mule FM502 dual swing gate openers
- Mighty Mule FM362-D dual swing gate openers when the original bracket style matches
- Select Mighty Mule MM271, MM272, MM371W, MM372W, MM571W, and MM572W models listed for current SR-HB100 bracket use
Common GTO / Linear PRO applications and search references
- GTO PRO 1500 and 2500 swing gate operator parts references
- GTO / Linear PRO SW2000XL, SW2002XL, SW2000XLS, and SW2002XLS bracket references where the parts diagram calls for HB100 style hardware
- FM200, MM260, MM360, and MM362 references found in older bracket listings - verify by bracket shape and parts diagram before ordering
Features and Specifications
| Manufacturer | Linear / Mighty Mule / GTO |
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| Product Type | Swing gate opener hardware bracket set |
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| Part Number | HB100 |
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| Application | Replacement mounting brackets for select FM352 and related swing gate operators |
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| Compatible Operator Type | Residential and light-duty swing gate actuator systems |
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| Included Components | Bracket hardware set; verify exact contents against current packaging |
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| Material / Finish | Outdoor-duty metal bracket hardware |
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| Notes | One bracket set is typically used per opener arm; verify by original bracket and parts diagram |
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Also Known As / Related Part Numbers
- HB100
- SR-HB100
- Mighty Mule HB100
- Linear HB100
- GTO HB100
- Hardware Brackets Box
- Hardware Bracket Set
- Mighty Mule bracket set
- FM352-HB100
- FM362-D-HB100
- GTO PRO 1500 bracket hardware
- GTO PRO 2500 bracket hardware
Technician Note
Check the gate geometry before replacing brackets. If the post bracket or gate bracket was bent because the gate hit a stop, sagged, or over-traveled, replacing only the bracket may not correct the root problem.
Before Ordering Checklist
- Confirm the opener model and actuator arm style.
- Compare the original bracket shape, hole pattern, and pivot hardware.
- For dual gates, order enough bracket sets for both actuator arms if both sides need service.
- Inspect gate hinges and stops before reinstalling the opener arm.
- Do not use bracket hardware to force an operator onto an incompatible gate geometry.
Important Ordering Warnings
- HB100 and H101P are related hardware items but are not interchangeable.
- Older GTO, Linear, and Mighty Mule model names overlap; verify the original parts diagram before ordering.
Professional Advisory
A qualified gate technician should inspect installations with bent brackets, cracked welds, loose posts, or unsafe gate movement. Mounting hardware should never be modified to bypass safety or travel-limit problems.
Product Questions and Answers
Does the HB100 kit fit the Mighty Mule FM352?
HB100 is commonly associated with FM352 replacement parts pages. Match the original bracket style and parts diagram because older Mighty Mule and GTO arms may use similar-looking but different hardware.
How many HB100 bracket sets are needed for a dual gate?
Most swing gate arms use one bracket set per actuator arm. A dual gate system normally needs two matching sets if both sides are being refreshed.
Is HB100 the same part as H101P?
No. HB100 is the bracket set, while H101P is a hardware bag or fastener kit. They are related mounting parts but should not be treated as the same item.
Can this bracket set fix a gate that is binding?
It can help if the problem is damaged or missing mounting hardware, but binding can also come from hinge sag, incorrect geometry, a bent gate, or a worn actuator.
Should I reuse old pins and fasteners with new brackets?
Replace badly worn pins, clips, or bolts when the original hardware is loose, rusted, or elongated. Loose pivot hardware can shorten the life of the opener arm.