Stainless Steel Eye Bolts — Closed Ring Hooks for Rigging, Hanging & Structural Fastening
When a standard bolt won't do the job, makers and builders reach for a reliable eye bolt. Whether you're routing cable through a panel, hanging a load from a beam, or anchoring a tensioning line in a DIY enclosure, a loose or corroded hook is a liability. These A2 304 stainless steel eye bolts deliver a fully closed ring profile and metric threading that stays secure under repeated load cycles — a combination that weekend builders and small-team fabricators consistently need but rarely find in one listing.
Each eye bolt is machined from A2 304 stainless steel with a fully closed circular ring head. Thread diameters span M3 through M10 (approximately 0.12" to 0.39"), and shank lengths range from 8 mm to 100 mm (approximately 0.31" to 3.94"). Packing options of 1, 2, 5, 10, 20, and 50 pieces let you order exactly what a project requires without overstocking.
Typical use cases include cable management routing in PC cases and electronics enclosures, load-bearing anchor points in workshop rigs and jigs, tensioning hooks for bungee or wire rope in outdoor structures, and hanging hardware for signage, lighting, or shelving in iterative maker builds. The metric thread sizing makes these stainless steel eye bolts a natural fit for aluminum extrusion assemblies and metric-standard DIY frameworks.
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Compatible with standard metric nuts and threaded inserts in M3, M4, M5, M6, M8, and M10 thread sizes.
✅ Key Features of These Stainless Steel Eye Bolts
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🔒 Fully Closed Ring Head — The circular loop is completely closed with no gap, preventing cables, ropes, or carabiners from slipping out under lateral load.
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🛡️ A2 304 Stainless Steel — Resists oxidation and surface corrosion in humid, outdoor, and light marine environments without surface coatings that can flake over time.
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📐 Wide Size Matrix — Six thread diameters (M3–M10) combined with lengths from 8 mm to 100 mm give you a single source for most metric eye bolt requirements across a project.
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⚙️ Standard Metric Threading — Mates directly with DIN 934 hex nuts, T-slot nuts in 20-series and 30-series extrusion, and standard metric threaded inserts.
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📦 Flexible Pack Quantities — Available in 1, 2, 5, 10, 20, and 50-piece packs so you can match order quantity to actual project demand rather than buying bulk bags.
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🔧 Tool-Free Hand Installation (Small Sizes) — M3 and M4 variants can be threaded by hand into pre-tapped holes or threaded inserts for quick-access panel points in enclosures and frames.
📐 Technical Specifications — Stainless Steel Eye Bolts
| Material |
A2 304 Stainless Steel |
| Ring Type |
Fully closed circular loop |
| Thread Standard |
Metric (ISO) |
| Thread Sizes Available |
M3, M4, M5, M6, M8, M10 |
| Shank Length Range |
8 mm – 100 mm (approx. 0.31" – 3.94") |
| Thread Pitch |
See variant options |
| Ring Inner Diameter |
See variant options |
| Finish |
Natural stainless (uncoated) |
| Grade |
A2-70 (304 SS) |
| Drive Style |
Hand-turn / wrench on shank |
| Pack Quantities |
1, 2, 5, 10, 20, 50 PCS |
| Condition |
New |
❓ Frequently Asked Questions
Which size eye bolt do I need for my application?
Match the thread diameter to your tapped hole or nut size — M3 and M4 for lightweight cable routing and small panel anchors, M5 and M6 for moderate hanging loads and structural frames, M8 and M10 for heavier rigging and load-bearing anchor points. For shank length, choose a length that provides at least 1.5× the thread diameter of engagement in the receiving material for reliable hold.
Are these eye bolts rated for load-bearing or overhead lifting?
These eye bolts are suitable for general rigging, tensioning, and hanging applications in DIY and maker contexts. They are not certified lifting hardware under ASME B30.26 or equivalent standards. For overhead lifting of personnel or critical loads, use rated and certified lifting eye bolts with documented working load limits.
Will A2 304 stainless steel rust outdoors?
A2 304 stainless steel offers solid corrosion resistance in most outdoor and humid environments. It resists rust from rain, condensation, and light salt exposure. In high-chloride environments such as coastal or marine settings with direct saltwater contact, A4 316 stainless is the more appropriate choice. For typical outdoor DIY, workshop, and light structural use, 304 SS performs reliably without surface treatment.
Can I use these with aluminum extrusion T-slot nuts?
Yes. The metric threading on these eye bolts is compatible with standard T-slot nuts used in 20-series (2020, 2040) and 30-series (3030, 3060) aluminum extrusion profiles. Select the thread size that matches your extrusion's T-nut specification — typically M3, M4, or M5 for 20-series and M5 or M6 for 30-series profiles.
What is the difference between a closed eye bolt and an open eye bolt?
A closed eye bolt has a fully welded or formed circular ring with no gap, so attached hardware such as carabiners, snap hooks, or wire rope cannot slip out sideways. An open eye bolt (also called a hook bolt) has a gap in the ring, making attachment and removal faster but less secure under lateral or shock loads. For permanent or semi-permanent rigging, closed ring eye bolts are the safer choice.
How do I install an eye bolt into wood, metal, or plastic?
For metal or plastic panels: drill a clearance hole and thread a matching metric nut onto the shank, or tap the hole to the correct thread size and thread the eye bolt in directly. For wood: drill a pilot hole slightly smaller than the thread diameter and drive the eye bolt in by hand or with a rod through the ring for leverage. Always ensure adequate thread engagement — a minimum of 1× the thread diameter in metal, and 2–3× in wood or soft materials.
Do these come with matching nuts or washers?
These eye bolts are sold as individual fasteners without nuts or washers. Standard DIN 934 hex nuts and DIN 125 flat washers in the corresponding metric size are widely available and will mate correctly with these eye bolts. If you need a complete fastener kit, consider ordering nuts and washers separately to match your specific shank length and application.
🛒 Select your Size and Packing QTY above, then add to cart.
