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G291 Forged Regular Nut Eye Bolt
Thinkwell
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G291 Forged Regular Nut Eye Bolt is a classic American-standard static lifting fastener, widely adopted in general industrial hoisting and equipment anchoring. Different from shoulder-type S279 and fatigue-rated G277 eye bolts, G291 features a shoulder-free straight shank design matched with standard regular hex nut, focusing on cost-effective, stable static load performance and universal assembly compatibility.
Manufactured via integral hot drop forging and precision quenching & tempering treatment with high-quality carbon steel, G291 eye bolt delivers solid structural strength and reliable static bearing capacity. It follows strict ANSI imperial standards and UNC full thread specifications, covering complete conventional sizes. Designed for general static lifting, fixed equipment anchoring and non-cyclic tension scenarios, it is the most cost-effective mainstream rigging solution for North American conventional industrial projects.
18 Years Professional Production Experience: We specialize in full-series American standard forged eye bolts, with mature G291 forging and thread processing technology, stable batch quality and long-term bulk supply for global industrial customers and distributors.
Adopts standard straight shank design without positioning shoulder, suitable for through-hole installation and universal equipment assembly. It features flexible mounting adaptability and no limitation on fitting surface thickness, covering more conventional installation scenarios.
Equipped with factory-matched standard regular hex nut, realizing precise thread fitting and uniform locking force. The complete bolt-nut set avoids mismatching risks and ensures overall connection stability during static lifting.
Made of high-quality carbon steel through one-piece hot drop forging, with dense metal texture and no internal pores or cracks. After tempering heat treatment, it achieves excellent tensile strength and structural toughness, resistant to static load deformation and fracture.
Fully compliant with American ANSI industrial standards, equipped with standard UNC full imperial thread. Accurate tooth pitch and smooth thread surface ensure quick assembly, firm locking and strong wear resistance.
Designed with standard industrial safety factor, each size corresponds to clear WLL (Working Load Limit). It maintains stable bearing performance under long-term static tension, ideal for fixed and non-cyclic lifting scenarios.
Supports self-color black finish, electro-galvanized and hot-dip galvanized surface treatments. Optional 304/316 stainless steel material adapts to indoor, outdoor and mild corrosive working environments.
Standard imperial size system perfectly matches American-standard machinery, molds, containers and steel structure equipment. It is universally applicable for conventional static hoisting and fixed anchoring in various industries.
Optimized structural design reduces unnecessary processing costs while retaining qualified lifting safety performance, making it the preferred conventional rigging hardware for bulk industrial matching and general engineering projects.
Focus on production of G291 regular nut eye bolts for years, proficient in ANSI standard dimensional tolerance, thread precision and heat treatment process control.
Each batch undergoes tensile test, static load proof test, hardness detection and dimensional calibration to ensure full compliance with G291 standard and zero defective delivery.
Supports custom extended shank length, non-standard imperial sizes, laser logo marking, exclusive surface treatment and personalized export packaging services.
Conventional 1/4'' to 1-1/4'' full imperial sizes are in sufficient stock, supporting bulk wholesale, mixed batch delivery and urgent order fast shipment.
Independent forging, heat treatment and galvanizing production lines, no middleman markup, providing high-quality and cost-effective standard eye bolt assemblies for global customers.
Provide size selection guidance and static load usage specifications to help customers reasonably match equipment and ensure lifting operation safety.
Imperial Size | UNC Thread | WLL (lbs) | Main Material | Surface Treatment | Matching Accessory | Application Scenario |
1/4" | 1/4-20 UNC | 650 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | Small precision equipment static fixing |
3/8" | 3/8-16 UNC | 1,300 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | Mini mold fixed hoisting |
1/2" | 1/2-13 UNC | 2,600 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | General industrial equipment anchoring |
5/8" | 5/8-11 UNC | 4,500 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | Medium machinery static lifting |
3/4" | 3/4-10 UNC | 7,200 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | Large mold fixed rigging |
7/8" | 7/8-9 UNC | 10,000 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | Heavy equipment static anchoring |
1" | 1-8 UNC | 12,000 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Standard Regular Hex Nut | Industrial heavy-duty fixed hoisting |
1-1/8" ~ 1-1/4" | Custom UNC Thread | Up to 21,000 lbs | Forged Carbon Steel / Stainless Steel | Self Color / Zinc Plated / Hot-Dip Galvanized | Custom Regular Hex Nut | Ultra-heavy static engineering rigging |
G291 Regular Nut Eye Bolt is a classic American-standard static lifting fastener, mainly used for fixed equipment hoisting, mechanical anchoring, mold installation and non-cyclic static tensioning. It is widely applied in general industrial engineering, equipment maintenance and conventional rigging matching projects in North American markets.
G291 adopts shoulder-free straight shank + regular nut, suitable for general static lifting with high cost performance; S279 is shoulder-type anti-rotation single eye bolt for stable static hoisting; G277 is fatigue-rated heavy-duty assembly for dynamic cyclic lifting. G291 is the most universal and cost-effective model for conventional static working conditions.
G291 is professionally designed forstatic fixed lifting, not applicable for long-term vibration, frequent cyclic loading and eccentric dynamic tension scenarios. For dynamic working conditions, G277 fatigue-rated eye bolt is recommended for higher safety.
All our G291 eye bolts adopt integral hot drop forging + tempering heat treatment process. Forged structure features dense texture, high toughness and strong static load resistance, completely avoiding the brittleness and crack risks of cast eye bolts, ensuring long-term stable static bearing performance.
Yes. After visual inspection to confirm no deformation, no crack, complete thread and intact eye body, G291 eye bolt and matched regular nut can be disassembled and reused multiple times for static fixed lifting scenarios, with excellent economic performance.
We provide three mainstream treatments: self-color finish for indoor cost-effective use, electro-galvanized for daily anti-rust protection, and hot-dip galvanized for outdoor humid and salt spray environments. Stainless steel polished version is available for mild corrosive scenarios.
Yes. Our G291 eye bolts strictly follow ANSI imperial standards and UNC thread specifications, with standardized WLL and structural parameters, meeting conventional North American industrial engineering inspection and market access requirements.
All conventional G291 imperial sizes are in sufficient stock for fast bulk delivery. Custom extended shanks, special sizes and personalized logos are available within 3-7 working days, supporting long-term stable supply for global rigging distributors and industrial projects.
