M3–M6 Stainless Steel Eye Bolt Kits — Corrosion-Resistant Fastening for Demanding Builds
When a standard bolt won't do the job — whether you're rigging a load, anchoring a cable, or securing hardware in a wet environment — a poorly chosen fastener can fail at the worst moment. Makers, riggers, marine hobbyists, and DIY builders who work with rope, wire, or cable need a fastening point they can trust across repeated use and exposure.
These stainless steel eye bolt kits are machined from A2-304 stainless steel and include a matching nut and washer per bolt. Thread diameters cover M3, M4, M5, and M6, with shank lengths ranging from 9 mm (0.35 in) up to 120 mm (4.72 in), giving you the reach needed for through-bolt applications in panels, frames, and enclosures.
Typical use cases include PC case cable management anchor points, aluminum extrusion frame rigging, marine deck hardware on small watercraft, and load-bearing suspension points in workshop jigs — all scenarios where a stainless steel eye bolt with nut and washer provides a clean, secure, and reusable fastening solution.
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Compatible with standard metric M3, M4, M5, and M6 threaded holes. Verify panel thickness against shank length before ordering.
✅ Key Features of These Stainless Steel Eye Bolts
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Full Kit Per Bolt
Each unit ships with one eye bolt, one matching hex nut, and one flat washer — ready to install without sourcing additional hardware.
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A2-304 Stainless Steel
Grade A2-304 stainless resists oxidation and surface corrosion in humid, wet, and mildly saline environments, making it suitable for marine and outdoor use.
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Wide Size Range
Available in M3, M4, M5, and M6 thread diameters with shank lengths from 9 mm to 120 mm (0.35–4.72 in) to suit thin panels through thick structural members.
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Metric Thread Standard
All bolts follow standard metric thread pitch, ensuring compatibility with tapped holes, threaded inserts, and standard metric nuts across common build platforms.
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Flexible Pack Quantities
Choose from 1, 2, 4, 5, 10, 20, 25, 40, 50, or 100-piece packs — ideal for single repairs, project builds, or stocking a workshop parts bin.
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Reusable Fastening Point
The closed-loop eye design accepts shackles, carabiners, hooks, and wire rope clips, making these bolts a durable, reusable anchor point across multiple applications.
📐 Technical Specifications — Stainless Steel Eye Bolts
| Material |
Stainless Steel 304 (A2) |
| Thread Sizes |
M3, M4, M5, M6 |
| Shank Length Range |
9 mm – 120 mm (0.35 in – 4.72 in) |
| Thread Standard |
Metric coarse pitch (ISO) |
| Thread Pitch |
See variant options |
| Eye Inner Diameter |
See variant options |
| Kit Contents |
1× Eye Bolt, 1× Hex Nut, 1× Flat Washer |
| Drive / Installation |
Wrench on hex nut; hand-tighten eye for alignment |
| Finish |
Brushed stainless (natural mill finish) |
| Pack Quantities Available |
1, 2, 4, 5, 10, 20, 25, 40, 50, 100 Pcs |
❓ Frequently Asked Questions
How do I choose the right shank length for my application?
Measure the total thickness of the material you are bolting through, then add at least 1× the thread diameter for nut engagement. For example, a 10 mm panel with an M5 bolt needs a shank of at least 15 mm to allow the nut to seat fully. Longer shanks also work — the washer and nut simply sit further from the eye.
What load can these eye bolts handle?
Working load limits depend on bolt diameter, installation angle, and the base material. These are general-purpose A2-304 stainless eye bolts intended for light-to-medium duty rigging, cable management, and DIY anchoring. For safety-critical overhead lifting, consult a rated lifting eye bolt with a certified WLL stamped on the body. Contact us to confirm suitability for your specific load requirement.
Are these bolts corrosion-resistant enough for marine use?
A2-304 stainless steel performs well in freshwater and mildly saline environments such as coastal air and occasional spray. For full saltwater immersion or continuous marine exposure, A4-316 stainless is typically recommended. These bolts are well-suited for above-waterline marine hardware, dock accessories, and small watercraft fittings.
What accessories can attach to the eye loop?
The closed eye loop accepts standard shackles, snap hooks, carabiners, wire rope clips, bungee hooks, and zip-tie anchors. Ensure the inner diameter of the eye is larger than the pin or hook diameter of your accessory. Inner eye diameter varies by bolt size — see variant options or contact us to confirm.
Can I use these in aluminum extrusion frames or PC cases?
Yes. M3 and M4 sizes are commonly used in PC case builds for cable routing anchor points, fan wire management, and panel retention. M5 and M6 sizes suit 20-series and 30-series aluminum extrusion frames where a through-bolt anchor point is needed. Confirm thread pitch matches your tapped insert or nut before ordering.
Do the nut and washer included match the bolt thread?
Yes. Each kit includes a hex nut and flat washer sized to match the bolt's thread diameter. The nut uses standard metric coarse pitch, and the washer outer diameter is proportional to the bolt size. No additional hardware is needed for a standard through-bolt installation.
Which pack size should I order for a project build?
For single repairs or testing a fit, the 1 or 2-piece packs are ideal. For a full PC build or small rigging project, 4–10 pieces covers most needs. Workshop restocking or bulk DIY projects are best served by the 20, 40, or 100-piece packs, which offer a lower per-unit cost. Select your size and quantity above before adding to cart.
🛒 Select your Size and Amount (Pcs) above, then add to cart.
