INSTALLATION MANUAL
Pieces and assembly steps for fitting the Forespar RailFast 300H and 300R rail mounts, used to hang products on 7/8", 1" and 1-1/4" rails.
DocumentForespar RailFast 300H & 300R Installation
FormatPDF · 1 page · 0.3 MB
LanguageEnglish
Download PDF ▾

RailFast 300H & 300R Pieces
The 300H and 300R assemblies give various options to hang products on a railing; both share the same installation.
| Item | Piece | 7/8" & 1" rails | 1-1/4" rails |
|---|---|---|---|
| 1 | Allen key | Yes | Yes |
| 2 | Bolt, stainless | 3/8"-16 × 1" | 3/8"-16 × 1-1/8" |
| 3 | Mounting boss | Yes | Yes |
| 4 | Rail clamp (printed "Rail Camps") | Yes | Yes |
| 5 | Tension pin | Yes | Yes |
| 6 | Rail strap | Yes | Yes |
| 7 | 7/8" shim | Yes (only for 7/8" rails) | – |
Installation
- The unit comes assembled: unthread the bolt with the Allen key supplied, then pull the mounting boss and the rail clamp off the rail strap assembly. Read the instructions through before starting.
- Locate an accessible position on your rail.
- Slide the rail strap over the rail. On a horizontal or slanted rail the square hole should be upward. On a 7/8" rail, first place the 7/8" shim inside the "U" of the rail strap.
- Insert the tension pin, round end first, through the square hole, keeping its threaded hole at a right angle to the rail.
- Slide the rail clamp over the ends of the rail strap until snug against the rail, slide on the mounting boss and insert the 3/8" bolt.
- Tighten with the Allen key to maximum hand force only: this gives a tight, secure fit. Do NOT use any additional leverage device. Use LocTite "Blue" #242 on the threads.
The 1-1/4" rail sheet (extra download) is the same procedure without the 7/8" shim, and with a longer 3/8"-16 × 1-1/8" stainless bolt.
Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.






