4" Flat Round Pre-Galvanized Steel Fence Post Cap

4" Flat Round Pre-Galvanized Steel Fence Post Cap

4 inch flat round pre-galvanized steel fence post cap top view

4" Flat Round Pre-Galvanized Steel Fence Post Cap

4" Flat Round Pre-Galvanized Steel Fence Post Cap

This 4 inch flat round pre-galvanized steel post cap is a pressed, low-profile cover for round commercial fence and gate posts. Four inches is a familiar nominal size, yet the actual post outside diameter, seam, coating, and production tolerance still control whether the cap seats correctly. Use the listing as a size reference and release bulk quantity only after fit has been checked.

Product Reference

Nominal post size 4 inch round
Cap style Flat round pressed steel cap with a shallow outside rim
Base material Pre-galvanized steel
Quoted finish routes Pre-galvanized, hot-dip galvanized, or powder coated; select one in the RFQ
Approximate unit weight 0.12 kg / 0.26 lb
SKU / barcode EONE-FPC-RD-FLAT-PG-4000

Do Not Treat a Nominal Four-Inch Post as a Measurement

Measure the outside diameter with a suitable tool and check the post in more than one direction. Record the condition of the cut edge, galvanizing, paint, weld seam, deformation, and any internal obstruction. New-build projects should compare the cap drawing with the ordered post profile. Replacement projects should test several installed posts because nominally identical runs can include material from different manufacturers or construction phases.

Coordinate New Fence Packages and Maintenance Stock

For a new fence package, place cap, post, rail, fitting, and gate schedules on the same procurement review so interfaces are visible before shipping. For maintenance inventory, define which terminal, gate, or perimeter posts use the four-inch cap and keep other diameters in separately labeled bins. State whether the cap is supplied loose, pre-fitted to posts, or packed with installation hardware.

Review Attachment, Drainage, and Coating Edges

The cap covers the open post top but should not be described as watertight unless the completed attachment has been tested for that role. Confirm whether the approved detail uses a friction fit, mechanical fastening, welding, adhesive, or another method. Maintain any required drainage or venting. Choose pre-galvanized, hot-dip galvanized, or powder-coated supply explicitly and define repair for field drilling or damaged edges.

Control Carton Counts for a Common Size

A common size can still be misallocated when several cap families are on the same order. Put the full product description, SKU, size, finish, and piece count on each carton. Use separators if nested caps could scratch or bind. Receiving inspection should compare the purchase order with cap diameter, profile, rim condition, coating, labels, and quantity before stock is issued to installers.

4 inch Flat Round Cap RFQ

Send the actual post diameter, post profile or photo, cap count, required finish, attachment method, sample request, carton count, project marks, destination, and required date. Eone Industry can check compatibility, provide sample review, coordinate related fence hardware, manufacture the lot, and quote consolidated packing plus door-to-door freight.

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Posts & Caps

Fence posts and post caps for steel, aluminum, and farm fence systems

Built for buyers sourcing fence posts, aluminum posts, steel garrison posts, square post caps, round post caps, Y posts, flange kits, and replacement cap programs.

Exact fit

Post and cap fit depends on real outside dimension, wall thickness, mounting method, and finish thickness.

Broad cap range

Round and square caps are organized by inch and metric size for fast U.S. buyer matching.

Post options

Support aluminum posts, steel posts, Y posts, flange kits, in-ground posts, and capped posts.

Bulk packaging

Ship caps in bags/cartons and posts in bundles/pallets with project labels or private label packaging.

Common dimensions

Item Inch / ft Metric Use note
Aluminum square posts 2 x 2 in 50 x 50 mm Common aluminum fence post profile.
Steel garrison posts 2.56 x 2.56 in 65 x 65 mm Common black powder coated square steel post.
Post length 70.9 / 82.7 / 106.3 / 118.1 in 1800 / 2100 / 2700 / 3000 mm Use in-ground or flange-mounted installation needs.
Round caps 1.3 / 1.65 / 2 / 2.385 / 3 / 3.5 / 4.5 / 5.5 / 6.5 in 33 / 42 / 51 / 60.6 / 76 / 89 / 114 / 140 / 165 mm Match actual round post OD.
Square caps 1.6 / 2 / 2.5 / 3 / 3.15 / 4 in 40 / 50 / 63.5 / 76 / 80 / 102 mm Match actual square post OD.

Materials and finish

Part Raw material Surface / finish Buyer note
Posts Aluminum, steel, galvanized steel, or Y-post steel Powder coated black, galvanized, or raw/paint-ready Choose by fence type and exposure.
Caps Steel, aluminum, plastic, or die-cast cap Black coated, raw, molded color, galvanized Confirm inside fit and cap style.
Flange kits Steel base plate, bolts, anchors Powder coated or galvanized Used for surface-mount installations.
Packaging Bundles, cartons, bags, pallets Labels, private label, project packing Important for warehouse receiving and distributor stock.

Best-fit applications

  • Steel and aluminum fence post supply
  • Round and square post cap replacement programs
  • Garrison fence, ornamental fence, aluminum fence, and farm fence systems
  • Dealer stock programs for posts, caps, and flange kits
  • Project packing for installers and distributors