Pro Grade Three And One Eighth Inch RT Composite Exterior Trim Screws Size Eight 514 Count For Attaching Composite And Cellular PVC Materials Underhead Reverse Thread Reduces Mushrooming Trim Head For Clean Finish Interior Or Exterior Use For Pros

3-1/8 inch (79 mm) RT Composite Trim Screws, #8, 514-count
✔️ 514-count, #8 RT Trim screws for composite and cellular PVC

These RT Composite TRIM Head screws are specialized fasteners for attaching composite and cellular PVC trim. They’re ideal for exterior trim work and interior millwork where a clean finish matters. Climatek coating enables interior or exterior use, including treated lumber.

✅ 3-1/8 inch (79 mm) length for long, flush attachments
✅ Underhead reverse thread hides the screw head for flush finishes
✅ Climatek coating enables interior/exterior use
✅ 514-count pack provides ample supply
✅ Attaches composite and cellular PVC materials
✅ W-Cut thread design reduces splitting

💡 What is a trim head screw used for with composite and cellular PVC materials?

It's handy for clean trim work in decks, siding, and interior millwork.

- 3-1/8 inch (79 mm) length provides solid bite into PVC and composite boards
- Underhead reverse thread helps the head sit flush and reduces mushrooming
- Climatek coating supports interior/exterior use in moist environments
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