--- title: "Fastener Galvanized Carbon Steel Thread Lock Square Nut" description: "Fastener Galvanized Carbon Steel Thread Lock Square Nut — Square Nuts. MOQ 1,000 pieces, US$0.60." url: https://engineeringhardware.com/product/fastener-galvanized-carbon-steel-thread-lock-square-nut/ source: Engineering Hardware & Fasteners --- # Fastener Galvanized Carbon Steel Thread Lock Square Nut [![Fastener Galvanized Carbon Steel Thread Lock Square Nut](https://img.engineeringhardware.com/Fastener-Galvanized-Carbon-Steel-Thread-Lock-Square-Nut.webp)](https://img.engineeringhardware.com/Fastener-Galvanized-Carbon-Steel-Thread-Lock-Square-Nut.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Nuts › Square Nuts](https://engineeringhardware.com/fastener-products/nuts/square-nuts/) Updated 2026-11-04 · [Markdown version](https://engineeringhardware.com/product/fastener-galvanized-carbon-steel-thread-lock-square-nut.md) Model no. **M6 M8 M10 M12 M16 M20 M22 M24** US$0.60 / piece MOQ 1,000 pieces · Final price confirmed in your quote - **Material:** Carbon Steel,Stainless Steel,High Tensile Steel - **Head Style:** Hexagonal - **Standard:** DIN, ANSI, GB, JIS, BSW - **Grade:** 4.8 5.6 6.8 8.8 10.9 12.9 - **Thread:** Unf, Unc, BS - **Length:** 1m,2m,3m - **Package Size:** 1100.00cm * 800.00cm * 500.00cm - **Finishing:** Plain,passivation. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Fastener%20Galvanized%20Carbon%20Steel%20Thread%20Lock%20Square%20Nut%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Ffastener-galvanized-carbon-steel-thread-lock-square-nut%2F) Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order. ## Specifications | Customization | Available | | --- | --- | | Material | Carbon Steel,Stainless Steel,High Tensile Steel | | Type | Hexagon Head | | Model NO. | M6 M8 M10 M12 M16 M20 M22 M24 | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, ANSI, GB, JIS, BSW | | Grade | 4.8 5.6 6.8 8.8 10.9 12.9 | | Thread | Unf, Unc, BS | | Length | 1m,2m,3m | | Dia. | 6-48mm | | MOQ | 2ton | | Transport Package | Woven-Bags or Gunny-Bags Then in Wooden/I | | Specification | M5 M6 M8 M10 M13 M16 M19 M22 M25 | | Origin | China | | HS Code | 7318190000 | | Production Capacity | 10 Tons Per Day | | Package Size | 1100.00cm * 800.00cm * 500.00cm | | Package Gross Weight | 25.000kg | | Warm prompt | 1.Product pictures properties and prices are for reference only,you can contact with us via trademanager,telephone or e-mail for the details. | | Stainless steel | SS304, SS316,SS316L,SS904L,F593,Q235 Q344 Q345 Q355 | | Finishing | Plain,passivation. | | Stainless steel | ss304, | | Category | [Square Nuts](https://engineeringhardware.com/fastener-products/nuts/square-nuts/) | ## Technical parameters | Standard | DIN,ASTM/ANSI JIS EN ISO,AS,GB | | --- | --- | | Material | Stainless steel :SS304, SS316,SS316L,SS904L,F593,Q235 Q344 Q345 Q355 | | Finishing:Plain,passivation. | | | Production | M4-M16,Cold Froging;M24-M100 Hot Forging, | | Process | Machining and CNC for Customized fastener | | Stock of nut | Stainless steel: ss304, | | Stainless steel: ss316. | | | Email us | Pls send emails to us if you have any inquiry or need to customized. | | Free Samples for standard fastener | | | FAQ | | --- | | Threaded rod, Hex bolt, Hex Nut, Flat washer, Screws, Anchors, Blind rivet, etc | | It depends on sizes, Usually 200 kgs to 1000 kgs. | | From 7 days to 75 days, depends on your sizes and quantity. | | T/T, LC, DP, etc. | | Due to a lot of kinds of fasteners, we quote prices accoridng to sizes, quantity, packing only. | | Sure, free sampls will be provided | ## Description Fastener Galvanized Carbon Steel Thread Lock Square Nut is part of our square nuts range (Nuts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN, ANSI, GB, JIS, BSW - **Material:** Carbon Steel,Stainless Steel,High Tensile Steel - **Grade:** 4.8 5.6 6.8 8.8 10.9 12.9 - **Thread:** Unf, Unc, BS - **Length:** 1m,2m,3m - **Head Style:** Hexagonal - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and thread. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 1,000 pieces at US$0.60 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you. ## Frequently asked questions ### What is the minimum order quantity (MOQ) for Fastener Galvanized Carbon Steel Thread Lock Square Nut? The listed minimum order is 1,000 pieces, at US$0.60 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### What are the main specifications of Fastener Galvanized Carbon Steel Thread Lock Square Nut? Type: Hexagon Head; Standard: DIN, ANSI, GB, JIS, BSW; Material: Carbon Steel,Stainless Steel,High Tensile Steel; Grade: 4.8 5.6 6.8 8.8 10.9 12.9; Thread: Unf, Unc, BS; Length: 1m,2m,3m. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include material, head style, standard, grade and thread. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing. ### What is the lead time and how is it shipped? Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment. ### Which other square nuts are available? The Square Nuts category lists 483 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/nuts/square-nuts/](https://engineeringhardware.com/fastener-products/nuts/square-nuts/) How we work ## Specified, checked and shipped by Engineering Hardware & Fasteners Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing. - DIN, ISO, ASTM, ANSI, JIS and GB standard parts - Non-standard parts made to your drawing - Dimensions, thread gauges and plating checked before packing - Export cartons and pallets, consolidated mixed orders - Samples available for approval before mass production [![Production floor](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor-1024x683.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-01-production-floor.webp) Production floor [![Inspection bench](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-02-inspection-bench.webp) Inspection bench [![Sorting & packing](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-03-sorting-and-packing.webp) Sorting & packing [![Parts warehouse](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/factory-04-parts-warehouse.webp) Parts warehouse [![Sample review](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-02-office-sample-review.webp) Sample review [![Sales office](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office-768x512.webp)](https://engineeringhardware.com/wp-content/uploads/2026/11/office-01-daily-sales-office.webp) Sales office [More about us →](https://engineeringhardware.com/about/) · [Request a sample or custom quote →](https://engineeringhardware.com/contact/) ## 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