Forged Eyebolts & Eye Nuts — Lifting, Rigging & Structural Anchor Point Hardware
Shivam Forge manufactures forged eyebolts, eye nuts, and lifting point hardware — shoulder and non-shoulder eyebolt forgings, collared eye nuts, and swivel eyebolt components — in Grade S and Grade 8 alloy steel, for crane lifting, rigging, and structural anchor point applications. Proof-load tested, WLL (working load limit) marked, EN 10204 3.1 certified with full traceability. Rajkot, India. Call +91-9265772827.
Eyebolts are among the most commonly used, and most commonly misused, pieces of lifting hardware in industrial and rigging applications: their rated working load limit assumes a specific loading configuration — typically a straight, in-line vertical pull — and capacity drops substantially, sometimes by more than half, when the load is applied at an angle rather than in-line with the bolt shank, a limitation that has caused numerous lifting incidents where users assumed full rated capacity applied regardless of rigging geometry. Shoulder eyebolts, which include a raised collar seated against the mounting surface, are specifically designed to accommodate some angular loading more safely than plain (non-shoulder) eyebolts, which should generally only be used for straight in-line lifts. Forged construction, following the same continuous-grain-flow principle applied across our lifting hardware product line, provides the fatigue resistance and freedom from internal defects a component sitting directly in the load path requires.
Forged shoulder eyebolts with a raised collar seated against the mounting surface, engineered to accommodate a degree of angular loading more safely than non-shoulder designs — though rated capacity still decreases as load angle moves away from straight in-line pull, per standard eyebolt derating tables.
Forged plain eyebolt blanks without a shoulder collar, intended specifically for straight, in-line vertical lifting applications where angular loading is not expected — using these for angular loads significantly exceeds their safe design intent.
Forged swivel eyebolt components incorporating a rotating eye that can align with the load direction as rigging geometry shifts during a lift, reducing the bending stress a fixed-eye design would otherwise experience under angular loading.
Forged eye nut components for threaded rod or stud lifting point applications, providing a lifting attachment point on structures using threaded rod rather than a bolt-hole mounting configuration.
Every eyebolt is proof-load tested to a multiple of its rated working load limit before certification and dispatch, verifying actual load-bearing performance in the same manner applied across our broader rigging hardware product line.
Every eyebolt stamped with its rated working load limit for straight in-line pull, accompanied by documentation on capacity derating for angular loading applicable to the specific eyebolt design (shoulder vs. non-shoulder).
Material test certificates confirming chemistry and mechanical properties for Grade S and Grade 8 eyebolt steel per EN 10204 3.1, issued as standard for every batch.
Complete manufacturing traceability from finished, certified eyebolt back to the originating billet heat and forging batch, supporting end-user safety documentation requirements.
Eyebolts occupy a deceptively simple-looking but genuinely hazard-prone category within lifting and rigging hardware, precisely because their published working load limit is frequently misunderstood or misapplied in practice: the rated capacity stamped on an eyebolt assumes a specific loading geometry — straight, in-line pull along the bolt's shank axis — and departs significantly from that assumption whenever rigging geometry introduces angular loading, which is common in real-world multi-point lifts. A rigger who assumes an eyebolt's full rated capacity applies regardless of sling angle is working with a materially incorrect safety margin, which is precisely why eyebolt derating tables (published by manufacturers and referenced in rigging safety standards) exist and why shoulder-versus-non-shoulder eyebolt selection genuinely matters for the specific lift geometry involved.
The engineering distinction between shoulder and non-shoulder eyebolts reflects this angular loading reality directly: shoulder eyebolts, with their raised collar bearing against the mounting surface, distribute some of the bending moment angular loading introduces into that collar-to-surface contact rather than concentrating it entirely at the thread root, allowing shoulder eyebolts to retain meaningfully more capacity at moderate load angles than non-shoulder designs. Non-shoulder eyebolts, lacking this collar, should generally be reserved for genuinely straight in-line lifting applications where their simpler, lower-cost design is entirely appropriate.
As with all forged lifting hardware, the manufacturing quality standard for eyebolts treats individual proof-load testing as non-negotiable rather than optional: every eyebolt intended for genuine lifting service must be tested to a multiple of its rated capacity before certification, since this is the only inspection method that directly verifies the finished component's actual load-bearing performance rather than inferring it from material certification and dimensional inspection alone.
For crane operators, rigging equipment suppliers, and industrial customers sourcing forged, proof-load-tested eyebolts and eye nuts with full WLL certification and material traceability, Shivam Forge offers shoulder, non-shoulder, and swivel eyebolt product lines. Contact our engineering team at +91-9265772827 or sales@shivamforge.com with your load rating and application requirements for a quotation.
Eyebolt working load limits are established for a specific loading configuration, typically straight in-line vertical pull. Loading at an angle introduces bending stress the bolt shank and mounting thread weren't primarily designed for, substantially reducing safe capacity — often by more than half at significant angles — which is why standard eyebolt derating tables exist and should always be consulted for non-vertical rigging geometry.
Shoulder eyebolts include a raised collar seated against the mounting surface, providing some capacity to handle angular loading more safely than non-shoulder designs. Non-shoulder (plain) eyebolts are intended specifically for straight, in-line vertical lifts and should not be used for angular loading.
Yes. Every eyebolt is individually proof-load tested to a multiple of its rated working load limit before certification and dispatch, the same quality discipline applied across our lifting and rigging hardware product line.
A swivel eyebolt incorporates a rotating eye that can align with the load direction as rigging geometry shifts during a lift, reducing the bending stress a fixed-eye eyebolt would experience under angular or changing load direction conditions.
EN 10204 3.1 material test certificates as standard, with full batch-to-billet traceability and individual proof-load test documentation, supporting end-user safety and lifting equipment inspection records.
Why Choose Shivam Forge
Shivam Forge delivers precision hot-forged components from our integrated Shapar, Rajkot facility — covering forging, CNC machining, heat treatment, and quality inspection under one roof.
