JSP Manufacturing Plastic New Fence Post Black Caps 4X4 (3 5/8") Pressure Treated Wood Made in USA MULITPACK Wholesale Bulk (50)

Price: $37.98

As of 2026-07-11 23:28:06 UTC (more info)

Product prices and availability are accurate as of 2026-07-11 23:28:06 UTC and are subject to change. Any price and availability information displayed on https://www.amazon.com at the time of purchase will apply to the purchase of this product.

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4x4 (3-5/8" x 3-5/8") Plastic Black Fence Post Caps ~ Quantity: 50 fence caps

Size: Inside Dimension 3-5/8" x 3-5/8" Square ~ 1/8-inch-thick to protect your treated posts from water and sun damage

Installation: Must be secured with nails or an adhesive that bonds to plastic and wood, should be pre-drilled if securing with nails. Cap presses over the outside of a 4x4 Post, a little flex but will not stretch. Can be painted, must use a paint that adheres to plastic

Important: Your post MUST measure 3-5/8" x 3-5/8" -If you post measures a true 4x4, this cap will not fit, please see our additional listing for True 4x4 (100mm) Fence Cap.

Please take time to measure your post not all 4x4 post are the same dimension. Fence Post Plastic Black Caps for Nominal 4X4 fence post that measure 3-5/8"x 3-5/8" ~ See images for comparison