1/4" x 4" Zinc-Plated Wire Lock PTO Pin 20-Pack — Trailer Coupler & Silver Ox Ramp Retention Pin | AAA Trailer

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1/4" x 4" Zinc-Plated Wire Lock PTO Pin — Trailer Coupler & Silver Ox Ramp Pin (Each)

$5.95 SAVE $-5.95

Zinc-Plated Wire Lock PTO Pin — 1/4" × 4" (Sold Individually) A heavy-duty 1/4" × 4" zinc-plated wire lock pin built for trailer couplers, PTO shafts, and
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Name: 1/4" x 4" Zinc-Plated Wire Lock PTO Pin — Trailer Coupler & Silver Ox Ramp Pin (Each)
Brand: AAA Trailer
SKU: PTO-025-4IN-EA
Price: 5.95 USD
Availability: InStock

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Zinc-Plated Wire Lock PTO Pin — 1/4" × 4" (Sold Individually)

A heavy-duty 1/4" × 4" zinc-plated wire lock pin built for trailer couplers, PTO shafts, and ramp retention. The longer 4" shaft makes these the go-to choice for applications that need extra reach — including securing side-fold ramps on Silver Ox trailers.

Constructed from 316 heavy-duty carbon steel with a double-layer zinc-plated finish, these pins offer excellent corrosion resistance and lasting durability in outdoor, agricultural, and towing environments.

📐 Specifications

Specification	Detail
Pin Diameter	1/4" (6.35mm)
Pin Length	4" (100mm)
Material	316 Heavy-Duty Carbon Steel
Finish	Double-Layer Zinc Plated
Lock Type	Square Wire Lock (Spring-Loaded)
Pack Quantity	20 Pins
Color	Silver / Zinc

🔍 Two Key Uses on Your Trailer

✔ Trailer Coupler Pin

Slides through the coupler latch to prevent accidental uncoupling during tow. The spring-loaded wire loop locks securely without tools — insert, snap closed, done. The 4" length provides ample engagement depth on standard ball couplers, pintle hooks, and adjustable trailer jacks.

✔ Silver Ox Side-Fold Ramp Retention Pin

The 1/4" × 4" dimension is the OEM-spec size for securing side-fold ramps on Silver Ox trailers. These pins drop directly into the ramp hinge bracket receiver, holding the ramp securely in the upright position during transport. Stocking a few extra is strongly recommended — these are easy to misplace and a missing ramp pin is a failed inspection.

💪 Key Features

✔ Double-Layer Zinc Plating

Two coats of zinc provide superior rust and corrosion protection vs. single-coat alternatives — engineered for outdoor, year-round use on trailers exposed to road salt, moisture, and UV.

✔ Spring-Loaded Wire Lock

Self-locking mechanism secures automatically on insertion. No separate clip, cotter pin, or tool required. Quick to release when needed — just compress the loop and withdraw.

✔ 4" Length — Longer Reach

At 4" total length, these pins work in applications where standard 2-3/4" or 3" pins fall short. Extra shaft length provides a secure grip in deeper receiver holes and ramp brackets.

✔ 316 Carbon Steel Construction

Heavy-duty alloy resists bending under shear loads. Rated for trailer couplers, PTO shaft connections, gate latches, and agricultural implement attachments.

✔ Buy What You Need

Sold individually — order exactly the quantity you need. Stock up for a fleet or grab a single replacement. Add multiples to your cart to build your own quantity.