RAM® Pin-Lock™ Replacement 4-Pin Key for C Size and Swing Arms

Name: RAM® Pin-Lock™ Replacement 4-Pin Key for C Size and Swing Arms
Brand: RAM Mounts
SKU: RAP-S-KEY5-4U
Price: 3.49 USD
Availability: InStock
Rating: 5.0 (5 reviews)

RAM® Pin-Lock™ Replacement 4-Pin Key for C Size and Swing Arms - Main image

RAM® Pin-Lock™ Replacement 4-Pin Key for C Size and Swing Arms - View 2

$3.49 ~~$4.99~~ In stock

Category: Components

The RAP-S-KEY5-4U replacement key knob is compatible with the RAP-S-KNOB5-4, RAP-S-KNOB5-4U and RAP-S-KNOB5/RAP-S-KNOB5U mixed combination security knobs that contain the 4 node security pattern. Please verify the node security pattern on your security knob before purchase.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Harper Z. ★★★★★ Oct 23, 2026

The 4-pin pattern on this replacement key lined up perfectly with my existing C-size swing arm lock, so swapping the old one out took maybe two minutes. Feels solid and clicks into place just like the original, which is exactly what I needed.

Joseph C. ★★★★★ Oct 22, 2026

I dropped my original key while hiking, and this replacement pin locks into the 4-node pattern just like the factory one did. The knob feels solid and turns smoothly without any wobble.

Robert A. ★★★★★ Oct 21, 2026

I was worried the key wouldn't match the pattern on my older C-size mount, but each of the four pins clicked in perfectly. The solid plastic knob feels durable enough for daily use.