# JJ Fastener Factory

> China fastener manufacturer & supplier of bulk DIN, ISO, ASTM bolts, nuts, screws, threaded rods, anchors and custom fasteners for distributors and OEMs.

## Website

- [Home](https://www.jjfastenerfactory.com/en): China fastener manufacturer & supplier of bulk DIN, ISO, ASTM bolts, nuts, screws, threaded rods, anchors and custom fasteners for distributors and OEMs.
- [About](https://www.jjfastenerfactory.com/en/about)
- [Contact Us](https://www.jjfastenerfactory.com/en/contact)
- [FAQ](https://www.jjfastenerfactory.com/en/faq): Answers on fastener standards, materials, MOQ, custom manufacturing, samples, inspection documents and lead time for distributors and importers.
- [Materials & Quality](https://www.jjfastenerfactory.com/en/materials-quality): Fastener materials, grades and finishes with EN 10204 3.1 certificates and PPAP documentation. ISO 9001 and IATF 16949. Contact us for inspection reports.
- [Applications](https://www.jjfastenerfactory.com/en/applications): Fastener solutions for construction, automotive, machinery, energy, oil & gas and infrastructure. Materials, grades and finishes selected per project.
- [Customization Solutions](https://www.jjfastenerfactory.com/en/customization-solutions): Custom fastener manufacturer: send your drawing or sample for DFM review, tooling, samples and bulk production of special bolts, nuts and screws.

## Product Categories

- [Bolts](https://www.jjfastenerfactory.com/en/products/category/bolts)
- [Nuts](https://www.jjfastenerfactory.com/en/products/category/nuts)

## Products

- [Slotted Pan Head Tapping Screw DIN 7971 Steel Fastener for Sheet Metal Panels and General Assembly](https://www.jjfastenerfactory.com/en/products/slotted-pan-head-tapping-screw-din-7971-steel-fastener-for-sheet-metal-panels-an): DIN 7971 steel slotted pan head tapping screws in reference sizes ST2.2–ST6.3. Specify length, Type C or F end, finish and quantity to request a quotation.
- [Slotted Cheese Head Machine Screw DIN 84 Steel Stainless Steel and Brass Fastener for Equipment Panels and General Assembly](https://www.jjfastenerfactory.com/en/products/slotted-cheese-head-machine-screw-din-84-steel-stainless-steel-and-brass-fastene): DIN 84 slotted cheese head machine screws with M1–M10 reference thread sizes. Specify steel, stainless steel or brass and send your requirements for a quote.
- [Slotted Countersunk Machine Screw DIN 963 Steel Stainless Steel and Brass Fastener for Equipment Panels Furniture Hardware and General Assembly](https://www.jjfastenerfactory.com/en/products/slotted-countersunk-machine-screw-din-963-steel-stainless-steel-and-brass-fasten): DIN 963 Slotted Countersunk Machine Screws feature a countersunk head, a straight slot drive and a metric machine thread for flush assembly.
- [Cross Recessed Countersunk Machine Screw DIN 965 Steel Stainless Steel and Brass Fastener for Electrical Equipment Furniture and Panel Assembly](https://www.jjfastenerfactory.com/en/products/cross-recessed-countersunk-machine-screw-din-965-steel-stainless-steel-brass): DIN 965 Cross Recessed Countersunk Machine Screws are metric threaded fasteners for electrical equipment, furniture, and panel assembly. The countersunk head seats in a matching countersunk hole for a flush surface.
- [Button Head Socket Screw ISO 7380-1 Alloy Steel and Stainless Steel Fastener for Machinery Furniture and Equipment Panel Assembly](https://www.jjfastenerfactory.com/en/products/button-head-socket-screw-iso-7380-1-alloy-steel-and-stainless-steel-fastener-for): ISO 7380-1 Button Head Socket Screws have a low-profile domed head and an internal hex drive for machinery, equipment panels, furniture, molds, and sheet-metal assemblies. Material options are alloy steel and stainless steel.
- [Low Head Socket Cap Screw DIN 7984 Alloy Steel and Stainless Steel Fastener for Limited Space Machinery and Mold Assembly](https://www.jjfastenerfactory.com/en/products/low-head-socket-cap-screw-din-7984-alloy-steel-and-stainless-steel-fastener-for): DIN 7984 Low Head Socket Cap Screws feature a low cylindrical head and an internal hex drive for assemblies with limited head clearance. Material options are alloy steel and stainless steel.
- [Heavy Hex Structural Bolt ASTM A490 Alloy Steel Fastener for Heavy Steel Construction Bridges and Buildings](https://www.jjfastenerfactory.com/en/products/a490-heavy-hex-structural-bolt-for-heavy-steel-construction): ASTM A490 Heavy Hex Structural Bolts are alloy steel fasteners for heavy steel construction, bridges, and buildings. The standard reference diameter range is 1/2″–1-1/2″.
- [Heavy Hex Structural Bolt ASTM A325 High Strength Carbon Steel Fastener for Steel Structures Bridges and Industrial Buildings](https://www.jjfastenerfactory.com/en/products/heavy-hex-structural-bolt-astm-a325-high-strength-carbon-steel-fastener-for-stee): ASTM A325 heavy hex structural bolts for steel structures, bridges and industrial buildings. Send your required dimensions, quantity and project specification for quotation.
- [Hex Bolt IS 1363 Carbon Steel and Stainless Steel Fastener for Machinery Assembly and General Industry](https://www.jjfastenerfactory.com/en/products/hex-bolt-is-1363-carbon-steel-and-stainless-steel-fastener-for-machinery-assembl): IS 1363 Hex Bolts are available in carbon steel and stainless steel for machinery assembly and general industrial fastening. Diameter and length requirements can be specified for standard procurement or custom orders.
- [Hex Head Wood Screw DIN 571 Carbon Steel and Stainless Steel Fastener for Timber Construction and Bracket Installation](https://www.jjfastenerfactory.com/en/products/hex-head-wood-screw-din-571-carbon-steel-and-stainless-steel-fastener-for-timber): DIN 571 Hex Head Wood Screws are available in carbon steel and stainless steel for timber construction, bracket installation, wood assemblies, and general construction fastening.
- [Hex Coupling Nut DIN 6334 Carbon Steel and Stainless Steel Fastener for Threaded Rod Connection and Support Systems](https://www.jjfastenerfactory.com/en/products/hex-coupling-nut-din-6334-carbon-steel-and-stainless-steel-fastener-for-threaded): DIN 6334 Hex Coupling Nuts are long hex nuts used to connect threaded rods in support systems, hanging systems, and industrial fastening assemblies. Carbon steel and stainless steel options are available in thread sizes from M6 to M36.
- [Heavy Hex Nut ASTM A563 Carbon Steel Fastener for Structural Steel and Construction](https://www.jjfastenerfactory.com/en/products/heavy-hex-nut-astm-a563-carbon-steel-fastener-for-structural-steel-and-construct): ASTM A563 Heavy Hex Nuts are carbon steel fastening components for structural steel, construction, and heavy-duty bolted connections.

## Articles

- [From Inquiry to Repeat Orders: Building a Sustainable Fastener Procurement Process](https://www.jjfastenerfactory.com/en/news/from-inquiry-to-repeat-purchase-building-a-sustainable-fastener-procurement-proc): Fastener procurement should involve more than comparing unit prices.
- [How to Calculate TCO and ROI in Fastener Procurement: Moving from Unit Price Comparison to Total Cost Decision-Making](https://www.jjfastenerfactory.com/en/news/how-to-calculate-tco-and-roi-in-fastener-procurement-shifting-from-unit-price-co): A low unit price for fasteners does not mean low procurement cost; quality fluctuations, inventory carrying costs, delivery delays, and downtime losses can all erode the price difference.
- [How to Calculate Total Cost of Ownership in Fastener Procurement: From Unit Price Comparison to Full Lifecycle Management](https://www.jjfastenerfactory.com/en/news/how-to-calculate-total-cost-of-ownership-in-fastener-procurement-from-unit-price): The true cost of fastener procurement goes beyond the quoted price and also includes quality inspection, inventory and delivery, assembly rework, and subsequent maintenance.
- [Standardizing the Fastener Procurement Process: From Requirements Definition to Mass-Production Review](https://www.jjfastenerfactory.com/en/news/standardizing-the-fastener-procurement-process-from-requirements-definition-to-m): This article outlines the complete fastener procurement process, from requirements definition, quotation inquiries and price comparisons, supplier qualification and sample confirmation, to order follow-up, incoming material acceptance…
- [2025 Fastener Procurement Guide: Lead Times, Compliance, and Total Cost Evaluation](https://www.jjfastenerfactory.com/en/news/2025-fastener-procurement-guide-lead-times-compliance-and-total-cost-evaluation): This article focuses on delivery stability, compliance and quality traceability, and landed total cost, outlining the key metrics and practical processes for B2B buyers evaluating fastener suppliers.
- [Don't Compare Unit Prices Alone When Sourcing Fasteners: Identify Three Types of Hidden Costs](https://www.jjfastenerfactory.com/en/news/don-t-compare-only-unit-prices-when-purchasing-fasteners-identify-three-types-of): A low fastener quote does not necessarily mean a low total procurement cost; quality fluctuations, delivery and inventory problems, and joint failures can all lead to inspection, rework, downtime, and maintenance expenses.
- [Fastener Supplier Evaluation Guide: From Quote Comparison to Full Lifecycle Cost Management](https://www.jjfastenerfactory.com/en/news/fastener-supplier-evaluation-guide-from-quote-comparison-to-full-lifecycle-cost): This article explains how to establish a fastener supplier evaluation and dynamic tiering mechanism by combining procurement scenarios, quality, delivery, technical support, and collaboration performance.
- [Do Flange Bolts Need Washers? DIN 6921 Buyer's Guide](https://www.jjfastenerfactory.com/en/news/do-flange-bolts-need-washers-din-6921-buyer-s-guide): Learn when DIN 6921 flange bolts may be used without separate washers, which joint checks matter, and what to include in a flange-bolt RFQ.

## Languages

- [fr](https://www.jjfastenerfactory.com/fr)
- [de](https://www.jjfastenerfactory.com/de)
- [es](https://www.jjfastenerfactory.com/es)
- [ar](https://www.jjfastenerfactory.com/ar)

## Optional

- [Sitemap](https://www.jjfastenerfactory.com/sitemap.xml): Complete public URL index.