--- title: "What Are Server Rack Screws and Cage-Nut Hardware Used For?" description: "Server Rack Screws and Cage-Nut Hardwares (Trade series (rack screws and cage-nut hardware)) are used for mounting rack equipment by matching 10-32, 12-24 or…" url: https://engineeringhardware.com/applications/server-rack-screws-and-cage-nut-hardware/ source: Engineering Hardware & Fasteners --- # What Are Server Rack Screws and Cage-Nut Hardware Used For? Screws · Trade series (rack screws and cage-nut hardware) · Application guide Typical applications, the industries that specify server rack screws and cage-nut hardware, and how to choose the right size, material and finish for the joint. Server Rack Screws and Cage-Nut Hardwares are used for mounting rack equipment by matching 10-32, 12-24 or M6 thread family to the cabinet. They are manufactured to Trade series (rack screws and cage-nut hardware), 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:** Mounting rack equipment by matching 10-32, 12-24 or M6 thread family to the cabinet - **Governing standard:** Trade series (rack screws and cage-nut hardware) - **Thread size range:** M6 to 12-24 - **Category:** Screws Application notes are general engineering guidance. Verify the property class and any approval requirement against your own design calculation. ![What Are Server Rack Screws and Cage-Nut Hardware Used For? application image](https://engineeringhardware.com/wp-content/uploads/2026/09/Server-Rack-Screws-and-Cage-Nut-Hardware.webp) The primary duty of Server Rack Screws and Cage-Nut Hardwares is mounting rack equipment by matching 10-32, 12-24 or M6 thread family to the cabinet. 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 M6 to M12, they cover general to heavy-duty work. ## Typical Applications for Server Rack Screws and Cage-Nut Hardware The most common settings where these are specified: - **Data centers:** Rack screws and cage nuts attach rails and equipment to cabinet posts. - **Audio racks:** 10-32 hardware is common where the rack is threaded for that system. - **IT equipment:** M6 and 12-24 options cover different rack conventions. - **Rack service:** Pan-head lengths suit front-panel and rail thickness. 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This product spans M6–M12; 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 (rack screws and cage-nut hardware). 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 Server Rack Screws and Cage-Nut Hardware - 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 Server Rack Screws and Cage-Nut Hardware 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 server rack screws and cage-nut hardware 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 10-32 Server Rack Screws and Cage-Nut Hardware to Trade series (rack screws and cage-nut hardware). Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected. - **Representative screw lengths:** 3/8 / 1/2 / 5/8 in - **Nominal diameter / pitch:** about 3/16 in; 32 TPI - **Head form:** pan head - **Mating hardware:** cage nut or threaded rack hole ## Dimensions & Specifications (Trade series (rack screws and cage-nut hardware)) | Thread family | Representative screw lengths | Nominal diameter / pitch | Head form | Mating hardware | | --- | --- | --- | --- | --- | | 10-32 | 3/8 / 1/2 / 5/8 in | about 3/16 in; 32 TPI | pan head | cage nut or threaded rack hole | | 12-24 | 3/8 / 1/2 / 5/8 in | about 7/32 in; 24 TPI | pan head | cage nut or threaded rack hole | | M6 | 10 / 16 mm | 6 mm; 1.0 pitch | pan head | cage nut or threaded rack hole | 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 Server Rack Screws and Cage-Nut Hardware 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 Server Rack Screws and Cage-Nut Hardware made to a recognized standard? Yes — they are manufactured to Trade series (rack screws and cage-nut hardware), so dimensions are interchangeable between suppliers when you quote the standard on your order. ### What are Server Rack Screws and Cage-Nut Hardware used for? Mounting rack equipment by matching 10-32, 12-24 or M6 thread family to the cabinet. They are supplied to Trade series (rack screws and cage-nut hardware). ### Which industries use Server Rack Screws and Cage-Nut Hardware? They are commonly specified in data centers, audio racks and it equipment, among other sectors. ### Can I get a quote for Server Rack Screws and Cage-Nut Hardware 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: [Server Rack Screws and Cage-Nut Hardware — specifications & sizes](https://engineeringhardware.com/fastener/server-rack-screws-and-cage-nut-hardware/) ### Server Rack Screws and Cage-Nut Hardware Specification Guides ### Related Fastener Applications