--- title: "Plastic Expansion Wall Plugs" description: "Plastic Expansion Wall Plugs to JG/T 139 / ETAG 020: dia 5-10 mm. 4 catalogued sizes with materials and finishes. Technical drawing redraws to any row." url: https://engineeringhardware.com/fastener/plastic-expansion-wall-plugs/ source: Engineering Hardware & Fasteners --- # Plastic Expansion Wall Plugs Anchors & Concrete Fixings · Expansion Wall Plugs 4 catalogued sizes, dimensioned to JG/T 139 / ETAG 020. Pick any row and the technical drawing redraws to it. Plastic Expansion Wall Plugs to JG/T 139 / ETAG 020 are catalogued in dia 5-10 mm. 4 sizes are held in the table below, and the technical drawing redraws to whichever row you select. - **Standard:** JG/T 139 / ETAG 020 - **Dia:** 5-10 mm - **Catalogued sizes:** 4 Dimensions are nominal values from the governing standard. Confirm the tolerance class for your application before ordering. ![Plastic Expansion Wall Plugs technical product image](https://engineeringhardware.com/wp-content/uploads/2026/09/Plastic-Expansion-Wall-Plugs-JGT139-ETAG020.webp) Product catalog ## Related Expansion Wall Plugs products [![Advanced Threaded Plug Valve Manufacturer for Efficient Flow Management](https://img.engineeringhardware.com/Advanced-Threaded-Plug-Valve-Manufacturer-for-Efficient-Flow-Management.webp)](https://engineeringhardware.com/product/advanced-threaded-plug-valve-manufacturer-for-efficient-flow-management/) Threaded Plugs & Locking Hardware ### [Advanced Threaded Plug Valve Manufacturer for Efficient Flow Management](https://engineeringhardware.com/product/advanced-threaded-plug-valve-manufacturer-for-efficient-flow-management/) Directly Operated Type · Hydraulic **US$30.00 – 60.00**MOQ 100 pieces [![High Performance Lock Plate 3043912 for Qsk38 Qsk50 Industrial Mechanical Engine Parts](https://img.engineeringhardware.com/High-Performance-Lock-Plate-3043912-for-Qsk38-Qsk50-Industrial-Mechanical-Engine-Parts.webp)](https://engineeringhardware.com/product/high-performance-lock-plate-3043912-for-qsk38-qsk50-industrial-mechanical-engine/) Threaded Plugs & Locking Hardware ### [High Performance Lock Plate 3043912 for Qsk38 Qsk50 Industrial Mechanical Engine Parts](https://engineeringhardware.com/product/high-performance-lock-plate-3043912-for-qsk38-qsk50-industrial-mechanical-engine/) Lock Plate · Aluminum **US$0.96 – 1.44**MOQ 1 piece [![Keyhole Escutcheon Door Lock Plate for Aluminum Door Accessories](https://img.engineeringhardware.com/Keyhole-Escutcheon-Door-Lock-Plate-for-Aluminum-Door-Accessories.webp)](https://engineeringhardware.com/product/keyhole-escutcheon-door-lock-plate-for-aluminum-door-accessories/) Threaded Plugs & Locking Hardware ### [Keyhole Escutcheon Door Lock Plate for Aluminum Door Accessories](https://engineeringhardware.com/product/keyhole-escutcheon-door-lock-plate-for-aluminum-door-accessories/) Escutcheon · Aluminum **US$4.20 – 4.80**MOQ 500 pieces [![High-Performance Threaded Plug Valve for Industrial Safety Relief](https://img.engineeringhardware.com/High-Performance-Threaded-Plug-Valve-for-Industrial-Safety-Relief.webp)](https://engineeringhardware.com/product/high-performance-threaded-plug-valve-for-industrial-safety-relief/) Threaded Plugs & Locking Hardware ### [High-Performance Threaded Plug Valve for Industrial Safety Relief](https://engineeringhardware.com/product/high-performance-threaded-plug-valve-for-industrial-safety-relief/) Directly Operated Type · Hydraulic **US$30.00 – 60.00**MOQ 100 pieces [![Hydraulic Threaded Plug-in Check Valve CV16-20 Pressure Maintaining Valve](https://img.engineeringhardware.com/Hydraulic-Threaded-Plug-in-Check-Valve-CV16-20-Pressure-Maintaining-Valve.webp)](https://engineeringhardware.com/product/hydraulic-threaded-plug-in-check-valve-cv16-20-pressure-maintaining-valve/) Threaded Plugs & Locking Hardware ### [Hydraulic Threaded Plug-in Check Valve CV16-20 Pressure Maintaining Valve](https://engineeringhardware.com/product/hydraulic-threaded-plug-in-check-valve-cv16-20-pressure-maintaining-valve/) Hydraulic Valve · Standard **US$9.60 – 19.08**MOQ 1 piece [![High-Precision Powder Metallurgy Sintered Camshaft Lock Plate for Engine Assembly](https://img.engineeringhardware.com/High-Precision-Powder-Metallurgy-Sintered-Camshaft-Lock-Plate-for-Engine-Assembly.webp)](https://engineeringhardware.com/product/high-precision-powder-metallurgy-sintered-camshaft-lock-plate-for-engine-assembly/) Threaded Plugs & Locking Hardware ### [High-Precision Powder Metallurgy Sintered Camshaft Lock Plate for Engine Assembly](https://engineeringhardware.com/product/high-precision-powder-metallurgy-sintered-camshaft-lock-plate-for-engine-assembly/) DIN · Iron Powder **US$0.012 – 0.60**MOQ 10,000 pieces [View all Threaded Plugs & Locking Hardware →](https://engineeringhardware.com/fastener-products/specialty-fasteners/threaded-plugs-locking-hardware/) [Full product catalog](https://engineeringhardware.com/products/) ## Applications & Industries Where Plastic Expansion Wall Plugs are used, and what decides the specification in each case. Stocked from 5 to 10 (nominal diameter). ### Industries that specify Plastic Expansion Wall Plugs - **Interior fit-out:** Plastic plugs carry trim, light fittings and cabinet rails. - **Residential building:** Nylon bodies suit brick, concrete and gypsum board. - **Retail display:** Light-load fixing without specialist tooling. - **Maintenance:** Common sizes cover most small wall fixings. - **Construction & structural:** Base plates, brackets and steelwork fixed to concrete. - **Building services:** Suspending tray, duct, pipe and sprinkler runs from a soffit. ### Typical applications - matching the plug diameter to the drill and the screw shank - choosing a wood or self-tapping screw so the thread expands the body - selecting tube length for the substrate thickness - keeping the load light and static - making a load-bearing threaded fixing in concrete or masonry - fixing a steel fixture through to a solid substrate ### Service conditions to specify against - **Marine and coastal:** Available in A4 (316) stainless for chloride exposure — coastal structures, pool halls, water treatment and deck hardware, where A2 will eventually pit. - **Temperature ceiling:** The polymer feature sets the limit, not the steel: nylon softens above roughly 120 °C, so an all-metal locking type is the correct choice on hot assemblies. - **The concrete governs:** Capacity is a property of the base material and the geometry — grade, edge distance, spacing and cracked or uncracked — not of the anchor alone. Work to the anchor manufacturer's ETA or ICC-ES report. - **Hole preparation:** Drilled diameter, depth and cleanliness are part of the specification; an uncleaned hole is the single most common cause of a failed anchor. ### Where to use something else - Do not use a light-duty plastic plug for overhead or safety-critical loads; ETAG 020 assessment is per manufacturer and per substrate. - Not for a substrate the type is not qualified in — an expansion anchor near an edge or in hollow block will split it. [Full application guide: where Plastic Expansion Wall Plugs are used, how to specify them, and the cases they are wrong for](https://engineeringhardware.com/applications/plastic-expansion-wall-plugs/) ## Technical Drawing Dimensioned line drawing of 5 Plastic Expansion Wall Plugs to JG/T 139 / ETAG 020. Side view and top view, drawn to the dimensions in the table below and redrawn for any size selected. - **Body material:** PE or nylon - **Mating screw:** wood screw or self-tapping screw - **Substrate:** brick / concrete / gypsum board - **Typical duty:** decorative trim and light fixtures ## Dimensions & Specifications (JG/T 139 / ETAG 020) Every row below is a starting point for the customizer above — pick any size and the drawing will redraw to that row. | Tube diameter (mm) | Body material | Mating screw | Substrate | Typical duty | | --- | --- | --- | --- | --- | | 5 | PE or nylon | wood screw or self-tapping screw | brick / concrete / gypsum board | decorative trim and light fixtures | | 6 | PE or nylon | wood screw or self-tapping screw | brick / concrete / gypsum board | light fixtures and cabinet rails | | 8 | PE or nylon | wood screw or self-tapping screw | brick / concrete / gypsum board | cabinets and light wall-mounted units | | 10 | PE or nylon | wood screw or self-tapping screw | brick / concrete | heavier cabinet and rail mounting | Plastic Expansion Wall Plugs conform to JG/T 139 / ETAG 020. As anchors & concrete fixings, they are specified by the dimensions in the table below; this page also covers materials, finishes and typical uses. ## What Are Plastic Expansion Wall Plugs? Plastic Expansion Wall Plugs are anchors & concrete fixings defined by JG/T 139 / ETAG 020. They are selected by nominal diameter and the dimensional characteristics shown below, and are available in a range of materials and finishes to suit the application and environment. ## Materials & Finishes Common materials include carbon steel (typically zinc plated or hot-dip galvanized), hardened or case-hardened steel where wear matters, and stainless steel A2 (304) or A4 (316) for corrosion resistance. Specify the material, hardness where relevant, and the surface finish appropriate to your application and environment. ## Specification Guides Each size, material and standard of Plastic Expansion Wall Plugs has its own reference page with the figures for that one configuration. ## Goes With Hardware commonly specified alongside Plastic Expansion Wall Plugs. ## Pricing Plastic Expansion Wall Plugs are supplied to order. Pricing starts from approximately US$0.020 per piece for standard sizes in carbon steel; final pricing depends on size, material, finish and order quantity (MOQ applies). Submit your exact configuration with the quote form above. Custom manufacturing · Made to drawing ## Need a plastic expansion wall plugs outside the standard range? Embedment depth, thread size, body length and corrosion protection are the variables; capacity remains a concrete design value, not a property of the anchor alone. Made by hot forging or thread rolling. Minimum order from 2,000 pieces; samples within 7 days of drawing approval. [Custom anchor & concrete fixing manufacturing](https://engineeringhardware.com/custom/anchors/)[Send a drawing](https://engineeringhardware.com/custom/anchors/#rfq) 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 ### Which standard governs Plastic Expansion Wall Plugs? Plastic Expansion Wall Plugs are manufactured to JG/T 139 / ETAG 020. The dimensional values on this page follow that standard. ### Which sizes of Plastic Expansion Wall Plugs does Engineering Hardware supply? The table on this page lists 4 sizes for Plastic Expansion Wall Plugs, ranging from 5 to 10. Sizes outside the table can be quoted on request. ### In which materials are Plastic Expansion Wall Plugs supplied? Plastic Expansion Wall Plugs are supplied in the material specified on the part drawing, with finishes including zinc plating, hot-dip galvanizing and black oxide. Choose material and finish to suit the load and the service environment for Plastic Expansion Wall Plugs. ### How do I request a quotation? Use the parametric drawing on this page to set the exact configuration (size, material, finish) and click "Request this configuration" — a specialist from Engineering Hardware will respond within one business day.