--- title: "What Are Wire Rope Thimble Used For?" description: "Wire Rope Thimbles are used for lifting, tensioning and securing loads within a rated working load limit. Catalogued 4 mm to 24 mm." url: https://engineeringhardware.com/applications/cad-svg-155-ropethimble/ source: Engineering Hardware & Fasteners --- # What Are Wire Rope Thimble Used For? Rigging Hardware · ISO / DIN · Application guide Typical applications, the industries that specify wire rope thimble, and how to choose the right size, material and finish for the joint. Wire Rope Thimbles are used for lifting, tensioning and securing loads within a rated working load limit. They are manufactured to ISO / DIN, and selection is driven by the working load limit required, the applicable safety factor and the service environment. - **Primary duty:** Lifting, tensioning and securing loads within a rated working load limit - **Governing standard:** ISO / DIN - **Rope diameter range:** 4 mm to 24 mm - **Category:** Rigging Hardware Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation. ![What Are Wire Rope Thimble Used For? application image](https://engineeringhardware.com/wp-content/uploads/2026/06/Wire-Nails-—-DIN-1151-Applications1.webp) The primary duty of Wire Rope Thimbles is lifting, tensioning and securing loads within a rated working load limit. Below: the sectors that specify them in volume, the checklist used to select the right size and material for the application, installation notes, and the known limits of the type. Stocked across roughly 4 mm to 24 mm, they cover general to heavy-duty work. ## Typical Applications for Wire Rope Thimble — ISO / DIN (Series 155) The most common settings where these are specified: - **General machine building:** fastening covers, brackets, motors and sub-assemblies on production equipment. - **Maintenance & repair (MRO):** a stocked size for servicing existing plant where the original fastener spec must be matched. - **Fabrication & metalwork:** bench and on-site assembly of steel frames, enclosures and weldments. ## How to Specify Wire Rope Thimble — ISO / DIN (Series 155) for Your Application - **Size:** Select on rope diameter, and confirm it against the mating feature in the assembly. This product spans 4 mm–24 mm; check the full table below for the exact dimensions of each size. - **Material:** Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance. - **Environment:** For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient. - **Standard:** This is a trade-series article rather than one covered by a published dimensional standard, so dimensions can differ between manufacturers. Quote the dimensions you need — or the part you are replacing — rather than a standard number. ## Where Wire Rope Thimble — ISO / DIN (Series 155) Are Not the Right Choice Match the fastener to the load, environment and whether the joint must be reopened; the wrong class or style is the usual cause of joint failure. Custom manufacturing · Made to drawing ## Need a wire rope thimble outside the standard range? A non-standard rigging hardware is quoted from the drawing; where one already exists in the catalog, the special is usually a variation on its tooling. Made by hot forging. Minimum order from 2,000 pieces; samples within 7 days of drawing approval. [Custom rigging hardware manufacturing](https://engineeringhardware.com/custom/rigging/)[Send a drawing](https://engineeringhardware.com/custom/rigging/#rfq) ## Technical Drawing Dimensioned line drawing of 4 Wire Rope Thimble — ISO / DIN (Series 155). Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected. - **Inside length (mm):** 18 - **Outside length (mm):** 28 - **Material:** Galvanized steel ## Dimensions & Specifications (ISO / DIN) | For rope diameter (mm) | Inside length (mm) | Outside length (mm) | Material | Reference standard | | --- | --- | --- | --- | --- | | 4 | 18 | 28 | Galvanized steel | DIN 6899 / GB/T 5974 | | 5 | 22 | 33 | Galvanized steel | DIN 6899 / GB/T 5974 | | 6 | 25 | 38 | Galvanized steel | DIN 6899 / GB/T 5974 | | 8 | 32 | 48 | Galvanized steel | DIN 6899 / GB/T 5974 | | 10 | 38 | 58 | Galvanized steel | DIN 6899 / GB/T 5974 | | 12 | 45 | 68 | Galvanized steel | DIN 6899 / GB/T 5974 | | 16 | 58 | 88 | Galvanized steel | DIN 6899 / GB/T 5974 | | 20 | 72 | 108 | Galvanized steel | DIN 6899 / GB/T 5974 | | 24 | 86 | 128 | Galvanized steel | DIN 6899 / GB/T 5974 | Inside the plant ## Manufactured in our own plant This part is cold-formed, threaded, heat-treated and finished in-house. The stages below are where its class and finish are actually decided. 1. ![Wire rod feeding into a cold heading machine](https://engineeringhardware.com/wp-content/uploads/2026/08/09-wire-rod-feed-cold-heading-machine.webp) 01 **Cold heading** Wire rod is drawn to size and cold-formed into blanks. Forming rather than cutting keeps the grain flow continuous around the head, which is where a bolt is most likely to fail. Head dimensions and under-head radius checked at set-up and per shift. 2. ![Thread rolling machine producing bolt threads](https://engineeringhardware.com/wp-content/uploads/2026/08/03-thread-rolling-machine-bolt-production.webp) 02 **Thread rolling** Threads are rolled between hardened dies rather than cut. Rolled threads are stronger in fatigue than cut threads and hold pitch and flank angle far more consistently across a batch. Go / no-go ring gauges to ISO 965 tolerance class 6g. 3. ![Baskets of bolts staged for heat treatment](https://engineeringhardware.com/wp-content/uploads/2026/08/05-heat-treatment-baskets-black-bolts.webp) 03 **Heat treatment** Quench-and-temper brings carbon and alloy steel to the property class ordered — 8.8, 10.9 or 12.9 — with the furnace charge tracked so a finished lot can be traced back to it. Core hardness and tensile tested per lot to ISO 898-1. 4. ![Zinc plated bolts in a treatment basket](https://engineeringhardware.com/wp-content/uploads/2026/08/23-zinc-plated-bolts-treatment-basket.webp) 04 **Surface treatment** Zinc, zinc-nickel, hot-dip galvanizing, black oxide, phosphate and Dacromet, selected against the service environment rather than against the price list. Coating thickness and neutral salt spray hours to ISO 9227. ## Frequently Asked Questions ### What are Wire Rope Thimble — ISO / DIN (Series 155) used for? Lifting, tensioning and securing loads within a rated working load limit. They are supplied to ISO / DIN. ### Which industries use Wire Rope Thimble — ISO / DIN (Series 155)? They are commonly specified in general machine building, maintenance & repair (mro) and fabrication & metalwork, among other sectors. ### How do I choose the right size of Wire Rope Thimble — ISO / DIN (Series 155)? Select on rope diameter and on the fit the assembly requires. This product is available from 4 mm to 24 mm; the full dimension table on this page lists each size. ### Are Wire Rope Thimble — ISO / DIN (Series 155) made to a recognized standard? Yes — they are manufactured to ISO / DIN, so dimensions are interchangeable between suppliers when you quote the standard on your order. ### Can I get a quote for Wire Rope Thimble — ISO / DIN (Series 155) in the size and material I need? Yes. Use the technical drawing and quote form on this page to set the size and options, then send the exact configuration to our team for pricing and lead time. ## Related Pages Product page: [Wire Rope Thimble — ISO / DIN (Series 155) — specifications & sizes](https://engineeringhardware.com/fastener/cad-svg-155-ropethimble/) ### Wire Rope Thimble — ISO / DIN (Series 155) Specification Guides ### Related Fastener Applications