Lifting eyes with internal threads create fixed attachment points on threaded studs and bolts, providing a secure ring through which you can pass hooks, shackles, wire rope or chain slings for lifting, pulling and anchoring operations. Threaded onto a stud or through-bolt, the lifting eye transforms any suitably rated structure into a rigging point without welding or permanent modification.
Standard metric thread sizes, including M8, ensure compatibility with common studding and anchor bolt diameters found in construction, manufacturing and maintenance settings. The closed-ring design distributes load evenly around the circumference, reducing stress concentrations compared to open hooks or makeshift attachment methods.
When selecting a threaded lifting eye, always verify that the working load rating matches or exceeds the planned load at the intended sling angle. Thread engagement length is critical: the component must sit fully threaded onto the stud with no gap between the bearing face and the mounting surface. Inspect the ring for wear, deformation or cracks before each use, and replace any hardware that shows signs of overloading or corrosion.
r: 02316679 p: 1.37 pid: 21818 b: FISCHER q: 0 st: lt: 20 ean: 4006209808405 sr: FISCHER 80840 sr_no_br: 80840 sr_no_br_cl: 80840 sr_cl: FISCHER80840 sr_dash: sold: 27.4 p_range: none type: standard act: 1 avo: 1 av: Eye diameter 20 mm Thread dimension M8 Material Steel Surface treatment Electrogalvanised Standard DIN 582 n: FISCHER 80840 eye nut RI M 8 cn: EYE NUT cn2: EYE NUT cn_clear: EYENUT d: Product description The ring nut for all fixings with threaded bolts. The fischer ring nut RI is the ring nut for all fixings with threaded bolts. Due to the metric internal thread, the ring nut RI can be used flexibly with a wide range of steel anchors or threaded rods. Ropes and chains are secured with it, as well as climbing scaffolds, clothes lines, or hanging baskets. The ring nut can be used in cracked and non-cracked concrete, and also in solid and hollow building materials in line with the anchor used. High flexibility due to using a variety of steel anchors and threaded rods Simple to assemble The metric internal thread gives the ring nut RI flexibility and means it can be used with a range of steel anchors or threaded rods; e. g. FH II, FHB II-A, RG M, FZA, FAZ II Plus, FIS A Suitable for The ring nut is to be used with an anchor with threaded studs. Detailed information about its functioning can be found in the "High performance steel anchors" and "Chemical fixings" chapters. The following anchors, for example, can be used: FHB II, RG M, FZA, FAZ II Plus, FIS A Not suitable for swings, hammocks etc Building materials In line with the anchor used: Concrete, cracked and non-cracked Solid and perforated brick Application Ropes Chains Trellises Lighting Clothes lines Hanging baskets ds: dsc: kts: eye nut RI M 8 kpn: 80840 kpn_dash: kpn_clear: 80840 bkpn: FISCHER 80840 bkpn_clear: FISCHER 80840 c_path: Home / Fasteners and machine components / Fasteners / Nuts / Eye nut | Home / Our brands / Fischer / Fischer fasteners and machine components / Fischer fasteners / Fischer nuts / Fischer eye nut sr_no_br_cl_ns: 80840 sr_ns: FISCHER80840
