Replacing missing or brittle screw-cover trim around an RV door, window or exterior molding? Start with the width and retaining profile of the original insert, then compare colour and the amount of material required. The AP Products choices below range from 3/4 to 1 inch, with shorter repair rolls and longer shop-length rolls.
Start with the width of your existing molding insert
AP Products supplies several widths and roll lengths. The labels below describe available groups, not a drawing of the retaining profiles.
Width is only the first check. A 3/4-inch cover is not automatically interchangeable with every other 3/4-inch insert. Compare the cross-section, retaining edges and how it seats in the existing molding. The insert is a cover for a compatible trim channel, not a substitute for failed sealant or damaged molding.
AP Products RV trim insert comparison chart
Use the manufacturer part number alongside width, roll length and colour. An exact part number is more useful than choosing an insert by appearance alone.
| Part number | Width | Colour | Length | Product family |
|---|---|---|---|---|
| 011-306 | 1 in | White | 100 ft | Vinyl trim insert |
| 011-311 | 1 in | White | 1,000 ft | Vinyl trim insert |
| 011-312 | 1 in | Black | 1,000 ft | Vinyl trim insert |
| 011-331 | 1 in | Colonial white | 50 ft | Vinyl trim insert |
| 011-398 | 3/4 in | Polar white | 50 ft | Flexible screw cover |
| 011-399 | 3/4 in | Black | 50 ft | Flexible screw cover |
| 011-407 | 7/8 in | Polar white | 50 ft | Flexible screw cover |
| 011-408-25 | 7/8 in | Black | 25 ft | Flexible trim insert |
| 011-444 | 3/4 in | Polar white | 200 ft | Insert molding trim |
These are catalog dimensions of the insert products. They are not drawings of the molding-channel cross-sections or guarantees of cross-brand fit.
Four checks before ordering screw-cover trim
- Remove or expose a short intact section of the old screw cover, taking care not to deform the molding.
- Measure its width and compare its cross-section with the channel: flat, curved and retainer shapes differ.
- Match the manufacturer part number if present; otherwise compare the actual profile and colour.
- Measure each trim run and allow for cuts and corners before choosing a roll length.
A flexible insert normally covers the fastener channel in compatible trim; it does not replace a broken extrusion or restore a failed waterproof joint. Inspect the underlying molding and sealant separately.
AP Products trim inserts: photos and product links
1-inch inserts
Confirm the channel and the old insert’s retaining shape, not just the measured width.
3/4-inch inserts
The listed 3/4-inch products include different trim-insert descriptions; matching the profile remains essential.
7/8-inch inserts
Choose between the listed 25-foot black and 50-foot polar-white options by the part number and your measured channel.
NewRVParts products ship from supplier warehouses; the catalog listings are for online ordering, not in-person viewing or pickup.