Product Overview
An eye bolt is a fastener with a looped (eye) head designed to create a secure attachment point for lifting, rigging, anchoring, pulling, pushing, or hoisting objects. The eye allows hooks, shackles, slings, or cables to connect safely to machinery, structural components, or fabricated parts. Eye bolts are widely used in construction, marine, automotive manufacturing, stage rigging, equipment handling, and general industrial applications.
Key Features & Benefits
Forged Construction — Hot-forged from high-quality carbon steel or stainless steel for superior strength and structural integrity.
Weldless Design — One-piece forged construction eliminates weak points, ensuring reliable load-bearing performance.
Multiple Standards Compliance — Manufactured according to DIN 580, ASTM A489, ASME B18.15, and ISO 3266. Meets ASME B30.26 rigging hardware requirements.
Two Shank Types Available — Type 1: Straight Shank (Plain Pattern) for vertical in-line loading only; Type 2: Shoulder Pattern for angular loads up to 45° (WLL must be reduced as load angle increases).
Precision Threading — Metric (M6–M100) and inch (UNC/UNF) threads available. Fully threaded or partially threaded options.
Clear Load Markings — WLL and size markings stamped on each eye bolt for easy identification and safety compliance.
Safety Factor 4:1 or 5:1 — All lifting eye bolts are load-tested with a minimum safety factor of 4:1 (per DIN 580) or 5:1 (per ASTM standards).
Material & Finish Options
Material | Grade | Application |
|---|
Carbon Steel | Grade 4.8 / 8.8 / 10.9 / 12.9 | General-purpose lifting, high tensile strength, cost-effective |
Stainless Steel | A2 (304) / A4 (316) | Corrosion resistance for marine, chemical, and outdoor environments |
Alloy Steel | Heat-treated (up to 150 ksi) | Heavy-duty, low-temperature applications per ASTM F541 |
Surface Finishes: Plain (uncoated), zinc-plated, hot-dip galvanized (80–100 μm coating thickness), Dacromet, passivation (for stainless steel).
Technical Specifications
Thread Size Range: M6 to M100 (metric) / 1/4″ to 2-1/2″ (inch)
Working Load Limit (WLL): 0.08 T to 16 T (depending on size and material)
Load Direction: Vertical in-line for straight shank type; angular up to 45° for shoulder type (WLL derating applies)
Temperature Range: Carbon steel up to 400°C (intermittent); stainless steel up to 800°C (intermittent)
Certifications: CE, RoHS, SGS, TUV. MTC and Quality Report available upon request.
Applications
Industry / Application | Recommended Type |
|---|
Overhead crane lifting / hoisting machinery | Shoulder eye bolt |
Motor, pump, switchboard lifting | Machinery eye bolt |
Stage rigging / theater lighting suspension | DIN 580 forged eye bolt |
Marine rigging / anchor points | Stainless steel 316 eye bolt |
Construction / structural tie-downs | Carbon steel, HDG finish |
Automotive manufacturing / tool & die shops | High-strength alloy steel |
HVAC equipment anchoring | Shoulder or straight shank |
Eye bolts provide defined and rated attachment points, simplifying load attachment and creating repeatable, safe lifting setups across industries.
Installation & Safety Guidelines
Full Engagement — Thread the eye bolt completely into the mounting surface until the shoulder (if present) makes firm contact with the base material. Both threads must be of equal length, and the base material must be of equal strength to the bolt itself.
Load Direction — Never apply angular loads to straight shank (non-shouldered) eye bolts. For angular lifts up to 45°, always use a shoulder-type eye bolt and consult manufacturer load charts for WLL reduction factors. Exceeding 45° significantly reduces load capacity and compromises safety.
Torque Specifications — Tighten nuts to specified torque values to prevent thread stripping and ensure proper load distribution.
Pre-Use Inspection — Inspect for surface discontinuities, cracks, wear, or deformation before each use. Never use eye bolts with visible damage.
Do Not Exceed WLL — Always verify SWL/WLL markings and never exceed rated capacity. Avoid shock loading and dynamic load spikes.
Angular Load Derating — For shouldered eye bolts, the WLL decreases as the lift angle increases from vertical. Always apply appropriate safety factors per ASME B30.26 guidelines.
Quality Assurance
All eye bolts undergo strict quality control including:
Online in-line inspection and final inspection before delivery
Dimensional checks per ASTM / DIN standards
Mechanical property testing (proof load, tensile strength, impact strength)
Magnetic particle testing (where applicable)
ISO 9001 certified manufacturing facilities
Why Choose Us
Factory Direct Pricing — Competitive rates with bulk order discounts
Short Lead Times — Stock items ship within 3–7 days; custom production within 15–30 days
Customization Available — OEM samples, custom sizes, special threads, logo marking, and packaging options
Global Shipping — DHL, UPS, FedEx, EMS, or sea freight to Europe, North America, Middle East, and Southeast Asia
Comprehensive Certifications — CE, SGS, TUV, RoHS. MTC and inspection reports provided
Ordering Information
Parameter | Options |
|---|
Size | M6 – M100 / 1/4″ – 2-1/2″ |
Material | Carbon steel / Stainless steel 304 / Stainless steel 316 / Alloy steel |
Grade | 4.8 / 8.8 / 10.9 / 12.9 / A2-70 / A4-80 |
Type | Straight shank (Type 1) / Shoulder pattern (Type 2) |
Finish | Plain / Zinc-plated / Hot-dip galvanized / Dacromet |
Standard | DIN 580 / ASTM A489 / ASME B18.15 / ISO 3266 |
Packaging | Carton + pallet (20–25 kg per carton) or customized |
MOQ | 20 kg (sample orders accepted for stock sizes) |
Payment Terms | T/T, L/C, Paypal, Western Union |