--- title: "What Are Gib-Head Taper Keys (DIN 6887) Used For?" description: "Gib-Head Taper Keys (DIN 6887) (DIN 6887 (gib-head taper keys) — 1:100 taper) are used for transmitting torque between a shaft and a hub." url: https://engineeringhardware.com/applications/gib-head-taper-keys/ source: Engineering Hardware & Fasteners --- # What Are Gib-Head Taper Keys (DIN 6887) Used For? Keys · DIN 6887 (gib-head taper keys) — 1:100 taper · Application guide Typical applications, the industries that specify gib-head taper keys (din 6887), and how to choose the right size, material and finish for the joint. Gib-Head Taper Keys (DIN 6887) are used for transmitting torque between a shaft and a hub. They are manufactured to DIN 6887 (gib-head taper keys) — 1:100 taper, and selection is driven by the key section, the fit and tolerance the assembly requires, and the service environment. - **Primary duty:** Transmitting torque between a shaft and a hub - **Governing standard:** DIN 6887 (gib-head taper keys) — 1:100 taper - **Key section range:** 10 mm to 65 mm - **Category:** Keys Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation. ![What Are Gib-Head Taper Keys (DIN 6887) Used For? application image](https://engineeringhardware.com/wp-content/uploads/2026/09/Gib-Head-Taper-Keys.webp) Application guide for Gib-Head Taper Keys (DIN 6887) to DIN 6887 (gib-head taper keys) — 1:100 taper. The core duty of the type is transmitting torque between a shaft and a hub. The typical industries, the how-to-specify checklist, assembly practice and the exclusion cases are set out below. Stocked across roughly 10 mm to 65 mm, they cover general to heavy-duty work. ## Typical Applications for Gib-Head Taper Keys (DIN 6887) The most common settings where these are specified: - **Power transmission:** locking pulleys, sprockets and couplings to a shaft. - **Gearboxes & motors:** transmitting torque from a shaft to a hub. - **Pumps & fans:** driving rotating components without slip. - **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. Product catalog ## Related Gib-Head Taper Keys products [![Grooved Pins with Pilot End, Grooved Pins, Taper Grooved](https://img.engineeringhardware.com/Grooved-Pins-with-Pilot-End-Grooved-Pins-Taper-Grooved.webp)](https://engineeringhardware.com/product/grooved-pins-with-pilot-end-grooved-pins-taper-grooved/) Taper, Grooved & Knurled Pins ### [Grooved Pins with Pilot End, Grooved Pins, Taper Grooved](https://engineeringhardware.com/product/grooved-pins-with-pilot-end-grooved-pins-taper-grooved/) Stainless Steel · ISO, GS, RoHS, CE **US$0.12**MOQ 5,000 pieces [![304 Stainless Steel Shaft Flat Head Shaft Pin Circlip Positioning Cylindrical Pin with Grooved Pin](https://img.engineeringhardware.com/304-Stainless-Steel-Shaft-Flat-Head-Shaft-Pin-Circlip-Positioning-Cylindrical-Pin-with-Grooved-Pin.webp)](https://engineeringhardware.com/product/304-stainless-steel-shaft-flat-head-shaft-pin-circlip-positioning-cylindrical-pin/) Taper, Grooved & Knurled Pins ### [304 Stainless Steel Shaft Flat Head Shaft Pin Circlip Positioning Cylindrical Pin with Grooved Pin](https://engineeringhardware.com/product/304-stainless-steel-shaft-flat-head-shaft-pin-circlip-positioning-cylindrical-pin/) Stainless Steel · Bronze, Zinc Plated, Rainbow, Plain, Nickle Plated **US$0.036 – 0.36**MOQ 1,000 pieces [![Stainless Steel Light Type / Heavy Type Tooth Slotted Spring Grooved Pins](https://img.engineeringhardware.com/Stainless-Steel-Light-Type-Heavy-Type-Tooth-Slotted-Spring-Grooved-Pins.webp)](https://engineeringhardware.com/product/stainless-steel-light-type-heavy-type-tooth-slotted-spring-grooved-pins/) Taper, Grooved & Knurled Pins ### [Stainless Steel Light Type / Heavy Type Tooth Slotted Spring Grooved Pins](https://engineeringhardware.com/product/stainless-steel-light-type-heavy-type-tooth-slotted-spring-grooved-pins/) Stainless Steel · 4-100mm **US$0.0012 – 0.006**MOQ 1,000 pieces [![Stainless Steel DIN1473 Grooved Pins Full Length Parallel Grooved with Chamfer](https://img.engineeringhardware.com/Stainless-Steel-DIN1473-Grooved-Pins-Full-Length-Parallel-Grooved-with-Chamfer.webp)](https://engineeringhardware.com/product/stainless-steel-din1473-grooved-pins-full-length-parallel-grooved-with-chamfer/) Taper, Grooved & Knurled Pins ### [Stainless Steel DIN1473 Grooved Pins Full Length Parallel Grooved with Chamfer](https://engineeringhardware.com/product/stainless-steel-din1473-grooved-pins-full-length-parallel-grooved-with-chamfer/) Stainless Steel · Passivated, Plain, Zinc Plated, Anodizing, HDG **US$0.60**MOQ 10,000 pieces [![Furniture Hardware Slotted Grade 6.8 M10 CNC Grooved Pin](https://img.engineeringhardware.com/Furniture-Hardware-Slotted-Grade-6-8-M10-CNC-Grooved-Pin.webp)](https://engineeringhardware.com/product/furniture-hardware-slotted-grade-6-8-m10-cnc-grooved-pin/) Taper, Grooved & Knurled Pins ### [Furniture Hardware Slotted Grade 6.8 M10 CNC Grooved Pin](https://engineeringhardware.com/product/furniture-hardware-slotted-grade-6-8-m10-cnc-grooved-pin/) Carbon Steel · Nickel Plated **US$0.012 – 0.024**MOQ 5,000 pieces [![Stainless Steel Knurled Pin Hinge Pin Toy City Connecting Rod Lock Cylindrical Positioning Pin](https://img.engineeringhardware.com/Stainless-Steel-Knurled-Pin-Hinge-Pin-Toy-City-Connecting-Rod-Lock-Cylindrical-Positioning-Pin.webp)](https://engineeringhardware.com/product/stainless-steel-knurled-pin-hinge-pin-toy-city-connecting-rod-lock-cylindrical/) Taper, Grooved & Knurled Pins ### [Stainless Steel Knurled Pin Hinge Pin Toy City Connecting Rod Lock Cylindrical Positioning Pin](https://engineeringhardware.com/product/stainless-steel-knurled-pin-hinge-pin-toy-city-connecting-rod-lock-cylindrical/) Stainless Steel · Bronze, Zinc Plated, Rainbow, Plain, Nickle Plated **US$0.036 – 0.36**MOQ 1,000 pieces [View all Taper, Grooved & Knurled Pins →](https://engineeringhardware.com/fastener-products/pins-dowel-fasteners/taper-grooved-knurled-pins/) [Full product catalog](https://engineeringhardware.com/products/) ## How to Specify Gib-Head Taper Keys (DIN 6887) for Your Application - **Size:** Select on key section, and confirm it against the mating feature in the assembly. This product spans 10 mm–65 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 product is supplied to DIN 6887 (gib-head taper keys) — 1:100 taper. Quoting the standard on your order guarantees interchangeable dimensions between suppliers. ## Where Gib-Head Taper Keys (DIN 6887) Are Not the Right Choice Not for very high reversing torque without an interference fit, and not as an axial retainer. Custom manufacturing · Made to drawing ## Need a gib-head taper keys (din 6887) outside the standard range? Width, height, length, taper and material are specifiable, and the keyway drawing matters as much as the key itself. Made by milling or broaching & serration. Minimum order from 2,000 pieces; samples within 7 days of drawing approval. [Custom machine key manufacturing](https://engineeringhardware.com/custom/keys/)[Send a drawing](https://engineeringhardware.com/custom/keys/#rfq) ## Technical Drawing Dimensioned line drawing of 10 Gib-Head Taper Keys (DIN 6887) to DIN 6887 (gib-head taper keys) — 1:100 taper. Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected. - **to and including:** 12 - **Key width b (mm):** 4 - **Key height h (mm):** 4 - **Head:** gib head ## Dimensions & Specifications (DIN 6887 (gib-head taper keys) — 1:100 taper) | Shaft diameter over | to and including | Key width b (mm) | Key height h (mm) | Head | | --- | --- | --- | --- | --- | | 10 | 12 | 4 | 4 | gib head | | 12 | 17 | 5 | 5 | gib head | | 17 | 22 | 6 | 6 | gib head | | 22 | 30 | 8 | 7 | gib head | | 30 | 38 | 10 | 8 | gib head | | 38 | 44 | 12 | 8 | gib head | | 44 | 50 | 14 | 9 | gib head | | 50 | 58 | 16 | 10 | gib head | | 58 | 65 | 18 | 11 | gib head | | 65 | 75 | 20 | 12 | gib head | 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 ### How do Gib-Head Taper Keys (DIN 6887) transmit torque? The key sits in matching keyways in the shaft and hub, transmitting torque in shear. Size the key to the shaft diameter using the standard, and ensure both keyways are cut to spec. ### What material should Gib-Head Taper Keys (DIN 6887) be for outdoor use? For damp, coastal or chemical environments specify A4 (316) stainless or a suitably coated steel. For indoor or dry use, A2 (304) stainless or zinc-plated steel is normally adequate. ### Are Gib-Head Taper Keys (DIN 6887) made to a recognized standard? Yes — they are manufactured to DIN 6887 (gib-head taper keys) — 1:100 taper, so dimensions are interchangeable between suppliers when you quote the standard on your order. ### What are Gib-Head Taper Keys (DIN 6887) used for? Transmitting torque between a shaft and a hub. They are supplied to DIN 6887 (gib-head taper keys) — 1:100 taper. ### Can I get a quote for Gib-Head Taper Keys (DIN 6887) 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: [Gib-Head Taper Keys (DIN 6887) — specifications & sizes](https://engineeringhardware.com/fastener/gib-head-taper-keys/) ### Gib-Head Taper Keys (DIN 6887) Specification Guides ### Related Fastener Applications