My Account
Shopping Cart

Seachoice RP-SC1336CH Nylon Insert Locknut 5/16-18 Chrome Plated Stainless Steel

Manufacturer

Seachoice

<h3>About Seachoice: Built by Boaters, for Boaters</h3><p><strong>Seachoice</strong> has been one of the most trusted names in the marine industry since its founding in 1988. What started as a focused supplier of marine hardware — cleats, hinges, and hasps — has grown into a comprehensive resource for boating enthusiasts of every level. Today, Seachoice offers more than 5,000 high-quality marine parts and accessories across 17 categories, backed by distribution from 18 warehouse locations for fast, reliable availability wherever you are on the water.</p><p>The philosophy behind Seachoice is straightforward: deliver the products boaters actually need, at a quality level they can depend on, without breaking the bank. That commitment has made Seachoice a go-to brand for both weekend recreational boaters and serious on-water professionals alike. Every product in the lineup is covered by a no-hassle warranty, reflecting the brand&quot;s confidence in its own craftsmanship.</p><h3>Anchoring Solutions for Every Vessel</h3><p>Anchoring is arguably the most critical system on any boat, and Seachoice has built an extensive anchoring ecosystem to match. Their <a href="/7548-seachoice-anchors-200101">Anchors</a> lineup includes a wide variety of styles suited to different bottom types and vessel sizes — from lightweight folding grapnel anchors ideal for personal watercraft to hot-dipped galvanized plow anchors engineered for boats in the 24-to-31-foot range. For boaters who need a permanent or semi-permanent solution, Seachoice&quot;s <a href="/7548-seachoice-mooring-anchors-200693">Mooring Anchors</a> are cast from heavy iron and sized for vessels from small runabouts all the way up to large cruisers, with improved shaft designs and oversized eyes to accommodate heavy-duty shackles.</p><p>For those who prefer traditional styles, the <a href="/7548-seachoice-slip-ring-traditional-anchors-200970">Slip Ring &amp; Traditional Anchors</a> collection offers classic navy and river anchor designs, many featuring vinyl or PVC coating for corrosion resistance in both fresh and saltwater environments. Whether you&quot;re anchoring in sand, gravel, shale, or soft mud, Seachoice has an anchor engineered for the job.</p><h3>Marine Rope and Cordage</h3><p>No anchoring system is complete without reliable cordage, and Seachoice&quot;s <a href="/7548-seachoice-rope-17207">Rope</a> category delivers just that. From solid-braid nylon dock lines that are rot-proof and abrasion-resistant to hollow-braid polypropylene anchor lines for smaller boats and PWC applications, Seachoice rope products are built for the demanding conditions of the marine environment. UV protection and corrosion-resistant hardware are standard features across the lineup, ensuring longevity whether you&quot;re in freshwater lakes or open saltwater.</p><h3>On-the-Water Comfort: Coolers &amp; Ice Chests</h3><p>A great day on the water also means keeping food and drinks cold, and Seachoice&quot;s <a href="/7548-seachoice-coolersice-chests-200288">Coolers/Ice Chests</a> round out the brand&quot;s on-board comfort offerings. Designed with the marine environment in mind, these coolers are built to handle sun, spray, and the rigors of life aboard a boat.</p><h3>A Brand You Can Count On</h3><p>Seachoice operates with a simple promise: quality you can trust, backed by worry-free protection. With a product line that spans lighting, electrical components, safety gear, hardware, anchoring, and more, Seachoice continues to be the brand boaters reach for when reliability matters most.</p>

Part Number

RP-SC1336CH
09/20/2036 4:55 AM
Sale Price

$19.41

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Seachoice RP-SC1336CH is a 5/16-18 nylon insert locknut featuring chrome plated 18-8 stainless steel construction for superior corrosion resistance in marine environments. This marine-grade locknut combines the strength of stainless steel with a durable chrome finish that provides both protection and appearance.

Key Features:

  • Chrome plated 18-8 stainless steel construction offers better corrosion resistance than standard 18-8 or 316 stainless steel alone
  • Nylon insert locking mechanism provides secure thread engagement and prevents loosening from vibration
  • Bright silver mirror finish matches other chrome hardware on your boat
  • Exceeds 1,500 hours in salt spray testing, virtually eliminating future corrosion problems
  • Same quality fasteners used by OEM boat manufacturers
  • More cost effective than chrome plated 316 stainless steel while delivering superior performance

This locknut is ideal for marine applications where you need reliable thread locking combined with corrosion resistance and a professional chrome appearance. The 5/16-18 thread size is a common fastener specification used throughout boat construction and maintenance.

Products specifications

Quantity

50

Size

5/16-18

Couldn't be more pleased!

Fast

Great Price ! Thanks!!

Well-designed website and search, prices and checkout experience was nice.

So far, so good!

Great shopping experience.

My order was delivered much sooner than I expected. I'm very pleased with your service!

item arrived quickly & packaged VERY WELL. very impressed with the quality of the headlights. would purchase again.

Happy

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy