--- title: "What Are Bicycle General Threaded Fasteners Used For?" description: "Bicycle General Threaded Fasteners (Trade series (bicycle threaded fasteners)) are used for matching a bicycle service thread and pitch to the component loca…" url: https://engineeringhardware.com/applications/bicycle-general-threaded-fasteners/ source: Engineering Hardware & Fasteners --- # What Are Bicycle General Threaded Fasteners Used For? Screws · Trade series (bicycle threaded fasteners) · Application guide Typical applications, the industries that specify bicycle general threaded fasteners, and how to choose the right size, material and finish for the joint. Bicycle General Threaded Fasteners are used for matching a bicycle service thread and pitch to the component location rather than diameter alone. They are manufactured to Trade series (bicycle threaded fasteners), and the choice of size, property class and finish is driven by the load in the joint and the environment it sits in. - **Primary duty:** Matching a bicycle service thread and pitch to the component location rather than diameter alone - **Governing standard:** Trade series (bicycle threaded fasteners) - **Thread size range:** 2.2 mm spoke to M8 - **Category:** Screws Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation. ![What Are Bicycle General Threaded Fasteners Used For? application image](https://engineeringhardware.com/wp-content/uploads/2026/09/Bicycle-General-Threaded-Fasteners.webp) Bicycle General Threaded Fasteners are used primarily for matching a bicycle service thread and pitch to the component location rather than diameter alone. This page lists the industries and assemblies where they are specified, the selection criteria that matter for each application, installation practice, and the cases where a different fastener type is the correct choice. Parts are supplied to Trade series (bicycle threaded fasteners). Stocked across roughly M2.2 to M8, they cover general to heavy-duty work. ## Typical Applications for Bicycle General Threaded Fasteners The most common settings where these are specified: - **Bicycle assembly:** Metric thread families cover adjustment, brake, rack and accessory hardware. - **Bike service shops:** The pitch distinction prevents a similar-size replacement from cross-threading. - **Performance bicycles:** M5 and M6 hardware secures common frame and brake points. - **Wheel building:** The spoke thread is a separate selection from the machine fasteners. 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This product spans M2.2–M8; check the full table below for the exact dimensions of each size. - **Drive & head:** Pick the drive (socket, cross, slot) and head style for the tool access and seating surface; a recessed drive resists cam-out under power tools. - **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 Trade series (bicycle threaded fasteners). Quoting the standard on your order guarantees interchangeable dimensions between suppliers. ## Installation & Assembly Practice - Match the driver exactly to the recess (PH ≠ PZ; hex key sizes per ISO 2936) and keep the tool axial — side load is the main cause of stripped drives. - In tapped holes, engage a thread length of at least 1× the nominal diameter in steel, 2× in aluminum. - Set power tools to a torque that seats the head without embedding it into the mating surface. ## Common Selection Mistakes with Bicycle General Threaded Fasteners - Under-sizing the drive for the installation torque — a small recess at high torque strips before the screw is seated. - Using a countersunk head in thin sheet where the countersink removes most of the load-bearing material. - Specifying stainless in high-strength duty: A2-70 is roughly class 7 steel, not a 10.9 substitute. ## Where Bicycle General Threaded Fasteners Are Not the Right Choice Not for high-preload structural joints (use a property-class bolt and nut), and not in thin sheet where a self-drilling or self-tapping type suits better. Custom manufacturing · Made to drawing ## Need a bicycle general threaded fasteners outside the standard range? Head form and drive can be specified to the assembly rather than to a standard: a larger bearing face, a security drive, or a socket sized for the tool already on the bench. Made by cold heading or warm forging. Minimum order from 2,000 pieces; samples within 7 days of drawing approval. [Custom screw manufacturing](https://engineeringhardware.com/custom/screws/)[Send a drawing](https://engineeringhardware.com/custom/screws/#rfq) ## Technical Drawing Dimensioned line drawing of M3 Bicycle General Threaded Fasteners to Trade series (bicycle threaded fasteners). Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected. - **Pitch:** 0.5 - **Typical bicycle location:** dropout adjustment and small accessory hardware ## Dimensions & Specifications (Trade series (bicycle threaded fasteners)) | Thread designation | Pitch | Typical bicycle location | | --- | --- | --- | | M3 | 0.5 | dropout adjustment and small accessory hardware | | M4 | 0.7 | some derailleur limit screws | | M4 | 0.75 | common JIS derailleur limit screws | | M5 | 0.8 | pinch bolts, rotor, fender, rack and bottle-cage mounts | | M6 | 1.0 | brake caliper, brake pad and rack/fender hardware | | M7 | 1.0 | some handlebar binder bolts | | M8 | 0.75 | chainring bolts | | M8 | 1.25 | stem, crank and suspension hardware | | 2.2 mm spoke | 56 TPI | common 2 mm spoke threading | 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 material should Bicycle General Threaded Fasteners 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 Bicycle General Threaded Fasteners made to a recognized standard? Yes — they are manufactured to Trade series (bicycle threaded fasteners), so dimensions are interchangeable between suppliers when you quote the standard on your order. ### What are Bicycle General Threaded Fasteners used for? Matching a bicycle service thread and pitch to the component location rather than diameter alone. They are supplied to Trade series (bicycle threaded fasteners). ### Which industries use Bicycle General Threaded Fasteners? They are commonly specified in performance bicycles, wheel building and bicycle assembly, among other sectors. ### Can I get a quote for Bicycle General Threaded Fasteners 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: [Bicycle General Threaded Fasteners — specifications & sizes](https://engineeringhardware.com/fastener/bicycle-general-threaded-fasteners/) ### Bicycle General Threaded Fasteners Specification Guides ### Related Fastener Applications