Woodscrew cup hook - Marine grade stainless steel 316 A4 - 4Boats

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£3.44

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Woodscrew Cup Hook - A4 Stainless Steel

Name: Woodscrew Cup Hook Marine Grade 316 Stainless Steel A4 Screw-In Hook 40mm-100mm
Price: 3.44 GBP
Rating: 5.0 (2 reviews)

Ultimate Corrosion Resistance for Marine & Coastal Use

This premium Woodscrew Cup Hook is specifically engineered for the demanding marine environment. Unlike standard hardware, these hooks are forged from A4-AISI 316 Stainless Steel, ensuring they remain rust-free even when exposed to salt water, heavy rain, and harsh coastal air.

DURABILITY: 100% Rust-proof and non-magnetic construction makes these ideal for boats, docks, and coastal garden applications.

Key Features

✔ Material: Marine Grade A4 (316) Stainless Steel
✔ Finish: High-Polish Mirror Effect
✔ Thread: Precision Tapered Wood Screw Lag
✔ Stability: Includes collar for a clean, flush fit

Technical Specs

Steel Grade	A4 / AISI 316
Magnetism	Non-Magnetic
Thread Type	Self-Tapping Wood
Common Sizes	40mm to 100mm

Size Chart & Dimensions

Size (Gauge x Length)	Inside Hook Diameter (W)	Wire Thickness (ø)
2.9mm x 40mm	12mm	2.9mm
3.3mm x 50mm	16mm	3.3mm
4.8mm x 65mm	22mm	4.8mm
5.8mm x 100mm	26mm	5.8mm

Industry Cross Reference

Common Names	Vine Eyes, M-Hooks, Cup Hooks, Lag Thread Hooks
Material Standard	A4-AISI 316 (British Standard / Marine Grade)

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.

How do I know if it is compatible?

Simply check your existing dimensions. These hooks use a standard wood screw lag thread, making them compatible with timber, composite, or masonry (when used with a standard wall plug).

What is the benefit of A4-316 Stainless over standard A2-304?

A4-316 contains molybdenum, which provides significantly higher resistance to "pitting" and corrosion caused by chlorides (salt water). It is the only choice for long-term marine use.

Note: 4Boats / Aftermarket parts are sourced from leading manufacturers to ensure reliability. Please ensure a pilot hole is drilled before installation into hard timbers to prevent splitting.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

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Woodscrew Cup Hook Marine Grade 316 Stainless Steel A4 Screw-In Hook 40mm-100mm