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Seachoice RP-SC30083 Hex Cap Screw 5/16"-18 x 2-1/2" Stainless Steel 316

Manufacturer

Seachoice

<h3>About Seachoice: Built by Boaters, for Boaters</h3><p><strong>Seachoice</strong> has been a cornerstone of the marine industry since 1988, when it launched as a supplier of high-quality marine hardware and OEM replacement parts, focusing on essentials like cleats, hinges, and hasps. Over the decades, the brand recognized that boaters needed a single trusted source for everything on the water, and rose to the challenge — today offering more than 6,000 replacement parts and accessories across 17 key product categories to serve the fishing, boating, and watersports communities worldwide.</p><h3>A Comprehensive Marine Catalog</h3><p>Few brands match the breadth of Seachoice's lineup. Whether you're rigging a new vessel, maintaining a well-worn workhorse, or gearing up for a weekend on the lake, Seachoice covers the essentials. The catalog spans marine lighting, fuses, fasteners, safety equipment, anchors, electrical components, boat plumbing, watersports accessories, and much more. Standout product lines include SAE- and DOT-approved marine lighting solutions, <strong>zinc anodes</strong> for corrosion protection, galvanized folding grapnel anchors, bilge pumps, tow ropes, and antifouling bottom paints — making Seachoice a go-to source for both routine maintenance and performance upgrades.</p><p>The brand's electrical category is especially expansive, covering connectors, terminals, crimpers, and heat-shrink tubing for clean, reliable wiring aboard any vessel. Seachoice also offers solar panels compatible with boats, RVs, and other vehicles — a testament to the brand's commitment to modern, energy-smart solutions on the water.</p><h3>Quality and Reliability You Can Count On</h3><p>Seachoice's guiding philosophy is straightforward: premium quality at a competitive price. The brand is described as &quot;run for and by boaters,&quot; meaning every design decision is grounded in real on-water experience. Backing up that confidence is a no-hassle warranty that covers the entire product line, giving customers peace of mind on every purchase. Products are continuously refined — with dozens of parts redesigned in recent years to meet higher performance standards — while pricing stays accessible for casual weekend boaters and serious mariners alike.</p><p>With inventory stocked across 18 strategic locations throughout the United States, Canada, and globally, Seachoice ensures that dealers and boaters can get what they need when they need it — before the tides change.</p><h3>Who Is Seachoice For?</h3><p>Seachoice's appeal spans a wide range of on-water enthusiasts. Anglers will find fishing-specific accessories and safety gear suited to long days offshore. Recreational boaters can outfit their vessels with docking hardware, fenders, mooring lines, and lighting. Watersports fans can gear up with tow ropes, ski ropes, and inflatable-compatible air pumps. Even sailing and paddlesports communities find representation in Seachoice's extensive catalog. Simply put, if it belongs on a boat, Seachoice likely makes it.</p>

Part Number

RP-SC30083
09/11/2036 1:11 PM
Sale Price

$21.37

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Seachoice RP-SC30083 is a premium marine-grade hex head cap screw designed for demanding saltwater and freshwater applications. Manufactured from 316 stainless steel, this fastener delivers superior corrosion resistance in harsh marine environments where standard fasteners would quickly deteriorate.

Key Specifications:

  • Thread Size: 5/16"-18 (5/16 inch diameter, 18 threads per inch)
  • Length: 2-1/2 inches
  • Material: 316 marine-grade stainless steel
  • Head Style: Hex cap (external hex drive)
  • Package Quantity: 10 pieces per bag

Benefits:

  • 316 stainless steel construction provides maximum resistance to saltwater corrosion and pitting
  • Hex head design allows for high-torque applications and easy installation with standard wrenches or sockets
  • Ideal for through-bolting applications on boats, docks, trailers, and marine equipment
  • Fully threaded shaft ensures secure fastening in a variety of mounting configurations

This fastener is an essential component for boat repairs, marine hardware installation, and trailer maintenance where reliability and corrosion resistance are critical. The 316 stainless steel alloy contains molybdenum, which significantly enhances its resistance to chloride environments compared to 304 stainless steel.

Products specifications

Quantity

10

Size

5/16"-18 x 2-1/2"

The only thing that didn't go very well was the time it took to receive the 2nd part of my order. I paid extra for 2 day shipping. It took closer to 6 days to receive my CDI switch box.

Great if I order again I will be using the same website again. Thanks

Happy, just didn't get confirmation email after order was placed.

Overall I had a good experience.

It was good

Quick easy service!

Was easy to order online

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