Product Description: Eye Bolts & Nuts
Product Summary
Our Eye Bolts & Nuts are forged lifting and rigging components designed for secure overhead attachment and load control. The eye bolt provides a reliable lifting point with a threaded shank, while the matching nut ensures secure fastening to structures or equipment. Available in shoulder and non-shouldered styles, with corresponding heavy hex or locking nuts, these components meet rigorous safety standards. Made from carbon steel, alloy steel, or stainless steel with protective finishes, they deliver dependable performance for hoisting, mooring, and structural tie-down applications.
Technical Specifications
| Parameter | Eye Bolts | Nuts (Matching) |
|---|---|---|
| Design Type | Shouldered / Non-Shouldered / Swivel / Rigid | Heavy Hex / Jam / Lock (Nylon or All-Metal) / Coupling |
| Construction | Forged One-Piece | Machined or Cold Formed |
| Thread Sizes | #10 to 2" (M5 to M48) | Same as eye bolt shank |
| Load Ratings (Working Load Limit) | 100 lbs to 20,000+ lbs (depending on size & angle) | Matches eye bolt rating |
| Materials | Carbon Steel (Grade 2/5/8) / Alloy Steel (4140/4340) / Stainless (304/316) | Same grade or ASTM A563 |
| Surface Finishes | Zinc Plated / Hot Dip Galvanized / Black Oxide / Passivated | Zinc / Galvanized / Plain |
| Proof Load Testing | 2× WLL minimum | Per ASTM A563 |
| Standards | ASTM A489 / F541 / ISO 3266 / DIN 580 | ASTM A563 / A194 |
| Inspection | Magnetic Particle / Dimensional / Hardness | Dimensional / Hardness / Proof Load |
| Markings | Size / Grade / WLL / Manufacturer (shouldered) | Grade marks on hex |
Product Applications
Overhead Lifting and Rigging rely on eye bolts and nuts for secure attachment points on heavy loads.
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Lifting machinery and equipment using slings and hooks
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Hoist and crane hookup points for workshop cranes
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Suspending lighting trusses and stage equipment
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Lifting concrete forms and precast panels
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Engine and transmission hoisting in automotive repair
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Lifting dies and molds in stamping presses
Marine and Mooring applications demand corrosion-resistant eye bolts and nuts for saltwater environments.
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Dock and pier mooring cleat attachment points
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Boat lift and davit lifting eyes
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Shipboard cargo securing rings
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Fender mounting hardware on marine structures
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Underwater equipment lifting and positioning
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Pontoon and floating dock tie-downs
Structural and Construction projects use eye bolts for permanent lifting inserts and bracing connections.
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Concrete insert lifting points (cast-in-place)
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Steel beam lifting lugs for crane rigging
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Scaffolding tie-back anchor points
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Fall arrest anchor eye bolts on roofs
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Temporary hoisting points for building materials
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Tension cable and guy wire terminations
Industrial Equipment and Machinery require eye bolts for maintenance and transport attachment.
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Lifting points on pumps, motors, and gearboxes
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Transport tie-down eyes on heavy machinery
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Access cover lifting handles with eye bolts
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Cask and drum lifting rings
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Transformer and generator lifting lugs
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Conveyor roller and idler replacement hoist points
Vehicle and Transportation use eye bolts and nuts for towing and recovery.
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Vehicle recovery and tow hook eyes
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Trailer tie-down ring attachments
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Railroad car coupling and lifting points
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Container corner casting lifting eyes
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Truck bed cargo securement anchors
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Off-road vehicle winch attachment points
Product Advantages
Select Eye Bolts & Nuts for safe, rated lifting points and versatile attachment solutions.
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Forged Strength: One-piece forged construction eliminates weld weaknesses and provides ductile load response
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Angle Rated: Shouldered eye bolts allow safe side loading up to 45° from vertical without bending shank
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Complete System: Supplied with matching nuts that meet same strength grade for full assembly rating
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Clear Markings: Each shouldered eye bolt is stamped with size, grade, and working load limit for easy identification
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Corrosion Protection: Zinc, galvanized, or stainless options resist rust in indoor, outdoor, and marine service
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Locking Versions: Nylon-insert or all-metal lock nuts prevent loosening under vibration
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Multiple Thread Classes: Fine or coarse threads match existing equipment or structural needs
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Proof Load Tested: Every batch validated to 2× working load limit ensuring safety margin
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Reusable: Undamaged eye bolts and nuts can be re-used after visual inspection
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Metric and Inch: Available in both standard sizes for global compatibility
Product Functions
Each eye bolt and nut performs specific mechanical and safety functions during lifting and fastening.
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Eye Ring Geometry: Provides a clean, smooth attachment point for hooks, shackles, or slings without sharp edges
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Threaded Shank: Transfers lifting force from eye into the receiving threaded hole or nut
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Shoulder Design: Distributes side loads into the mounting surface, preventing shank bending at angles
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Heavy Hex Nut: Offers wider wrench flats for higher torque application without stripping
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Lock Nut Insert: Nylon ring creates thread interference to resist vibration-induced loosening
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Proof Load Capacity: Engineered to withstand 2× working load limit before permanent deformation
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Magnetic Particle Inspection: Reveals surface and subsurface defects that could cause sudden failure
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Ductile Core: Allows slight deformation under overload as visual warning before fracture
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Self-Aligning (Swivel Type): Rotates to align with load direction, reducing bending stress on shank
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Jam Nut Locking: Two nuts tightened against each other create vibration-proof assembly
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Grade Marking: Hex nut grade marks match eye bolt grade for correct strength pairing
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Corrosion Barrier: Zinc or galvanized coating prevents thread galling and rust seizure

