L Feet & Hanger Bolts for PV Rail Attachments
Choose the attachment set from the roof profile, supporting structure and rail interface—not from bolt length alone. Easy Solar supplies L-foot brackets, hanger-bolt assemblies and matched connection hardware for project-based PV mounting.
Three Practical Attachment Paths
These configurations cover the main ways an L foot or hanger bolt is used in a rail-based roof mounting system.
Slotted L Foot
Provides the bracket interface between a compatible roof attachment or base and the mounting rail. Slot geometry sets the available adjustment range.
L Foot with Roof Fastener or Base
Used where the mounting design specifies a compatible roof screw, flashed base, pedestal or other attachment below the L foot.
Hanger Bolt with Adapter or L Foot
Creates a threaded connection to the specified supporting member below the roof and connects to an adapter or L foot above the roof.
What to Confirm Before Choosing the Hardware
A visually similar roof can use different attachment hardware when the supporting structure or rail interface changes.
Roof Profile
Corrugated, trapezoidal or other roof geometry, including material, thickness and roof build-up.
Substructure
Timber, steel, deck or another approved support, together with the available fixing depth.
Rail Connection
Rail profile, slot or channel, connection bolt/nut and the required adjustment range.
Sealing Detail
Washer, gasket, flashing or other roof-interface detail specified for the selected attachment system.
Match the Lower Fixing to the Supporting Material
The lower fixing geometry and required depth can differ between timber and steel supports. Total length also needs to account for the roof build-up, sealing position and the connection above the roof.
- Identify the supporting material before selecting the lower thread or fixing geometry.
- Check total length against the roof profile and required clearance.
- Match the upper thread to the adapter, nuts or L-foot connection.
- Use the sealing detail specified for the selected attachment, rather than assuming one washer suits every roof.
Data Needed to Match the Correct Set
Final dimensions and materials should come from the confirmed SKU, drawing or project specification.
| Roof and support | Roof profile/build-up plus the actual supporting material and fixing location. |
|---|---|
| Hanger-bolt geometry | Lower fixing type, thread diameter, upper thread, total length and required fixing depth. |
| L-foot geometry | Height, width, thickness, hole/slot dimensions and usable adjustment range. |
| Rail interface | Rail profile and the compatible T-bolt, channel nut or other specified connection. |
| Sealing | Washer, gasket, flashing, integrated base or other roof-interface component required by the attachment design. |
| Material and finish | Confirm from the product drawing or project requirement rather than applying one generic grade to every configuration. |
| Order data | Quantity, BOM, packaging, labels, destination and any drawing-based customization. |
Standard Parts and Drawing-Based Variants
Standard assemblies can be matched by application, while drawing-based projects can specify bracket geometry, hanger-bolt dimensions, adapters, connection hardware and packing requirements.
- L-foot dimensions, holes and slots reviewed from drawings or samples.
- Hanger bolts, nuts, washers and adapters grouped to a confirmed BOM.
- Project labels, counted sets and export packaging available for agreed orders.
Send the Roof, Support and Rail Details for a Quote
Provide the project information needed to match the attachment set before dimensions and quantities are finalized.
- Roof profile, material and build-up
- Timber / steel / deck supporting structure
- Rail cross-section or connection drawing
- Required bracket or hanger-bolt configuration
- Quantity, packaging and destination
Common Compatibility Questions
Is an L foot always the roof attachment?
No. In many systems the L foot is the rail-side bracket and sits above a separate roof attachment, base, clamp, flashing or structural fastener.
Can the same hanger bolt be used for timber and steel supports?
Not automatically. The lower fixing geometry and required depth depend on the supporting material and the selected attachment design.
What information is needed for a quotation?
Send the roof profile/build-up, supporting material, rail drawing or interface, required configuration, quantity and destination.