--- title: "Galvanized Zinc Hex Flange Head Cap Screw Bolt" description: "Galvanized Zinc Hex Flange Head Cap Screw Bolt — Flange Bolts. Material: Alloy Steel, Grade: 8.8 / 10.9 / 12.9. MOQ 1,000 pieces, US$0.14 – 0.30." url: https://engineeringhardware.com/product/galvanized-zinc-hex-flange-head-cap-screw-bolt/ source: Engineering Hardware & Fasteners --- # Galvanized Zinc Hex Flange Head Cap Screw Bolt [![Galvanized Zinc Hex Flange Head Cap Screw Bolt](https://img.engineeringhardware.com/Galvanized-Zinc-Hex-Flange-Head-Cap-Screw-Bolt.webp)](https://img.engineeringhardware.com/Galvanized-Zinc-Hex-Flange-Head-Cap-Screw-Bolt.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Bolts › Flange Bolts](https://engineeringhardware.com/fastener-products/bolts/flange-bolts/) Updated 2026-11-03 · [Markdown version](https://engineeringhardware.com/product/galvanized-zinc-hex-flange-head-cap-screw-bolt.md) Model no. **DIN6921** | **US$0.30**1,000–4,999 pieces | **US$0.14**5,000+ pieces | | --- | --- | MOQ 1,000 pieces · Final price confirmed in your quote - **Head Style:** Hexagonal - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Grade:** 8.8 / 10.9 / 12.9 - **Surface Treatment:** Black Oxide/Plain/Zinc Plated/HDG - **Diameter:** M5-M20 - **Material:** Alloy Steel - **Wide Range of Sizes:** With a production range from M3 to M30 and inch sizes from 10# to 1-1/4", you can find the perfect fasteners for your specific needs. - **Various Surface Treatments:** Choose the surface treatment that suits your requirements, whether it's black oxide, white zinc plated/yellow zinc plated, or HDG. Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Galvanized%20Zinc%20Hex%20Flange%20Head%20Cap%20Screw%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fgalvanized-zinc-hex-flange-head-cap-screw-bolt%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 | Model NO. | DIN6921 | | --- | --- | | Groove | Hexagon | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN, GB, ANSI, BSW, JIS, GOST | | Grade | 8.8 / 10.9 / 12.9 | | Surface Treatment | Black Oxide/Plain/Zinc Plated/HDG | | Keyword | Hex Flange Head Cap Screw Flange Bolt | | Diameter | M5-M20 | | Application | Machinery,Chemical Industry, Environmental,Buildin | | Certificate | ISO9001: 2015 | | Export Markets | Global | | Transport Package | 1. Small Boxes Into Outer Carton 2. Bulk Packaging | | Specification | Shoulder Diameter φ6-φ25, 1/4-1", 1/4-3/4" | | Origin | China | | HS Code | 731815 | | Production Capacity | 1000 Tons Per Month | | Customization | Available | | Material | Alloy Steel | | Type | Flange Head | | Our extensive range of fastener products includes | Drop-in Anchor | | Production Range | Our fasteners are available in a range of diameters, from M3 to M30, and inch sizes from 10# to 1-1/4". | | Reliable Performance | Our fasteners are manufactured to the highest standards, ensuring their reliability and performance in various applications. | | Durable | Made from carbon steel and alloy steel, our fasteners are built to last, providing you with long-lasting solutions. | | Wide Range of Sizes | With a production range from M3 to M30 and inch sizes from 10# to 1-1/4", you can find the perfect fasteners for your specific needs. | | Various Surface Treatments | Choose the surface treatment that suits your requirements, whether it's black oxide, white zinc plated/yellow zinc plated, or HDG. | | Quality Assurance | Our fasteners are ISO9001:2008, SGS, and ROHS certified, ensuring their quality and compliance with international standards. | | Package | 25-30KGS/CARTON, 36-48CARTONS/PALLET | | Produce time | Standard size in stock 5-7 working days, Non-standard: 12-18 working days, base on the quantity | | Shipping way | by Air, Express (Fedex, UPS, DHL, etc.). More than 100KGS: By sea. We have an agent that can help you ship the goods. If you have your own agent, that is also OK. | | Some of our main products include | Drop-in Anchor | | Category | [Flange Bolts](https://engineeringhardware.com/fastener-products/bolts/flange-bolts/) | ## Technical parameters | Material | 1.Stainless Steel:SS304,SS316 2.Alloy Steel 3.Carbon steel | | --- | --- | | Grade | SAE J429 Gr.2, 5,8; ASTM A307Gr.A,A193 B7,B8,B8M,A194 2H, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. | | Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc. | | Thread | UNC,UNF | | Standard | ISO, DIN, ANSI, JIS, BS and Non-standard | | Sample Service | Samples are all in free when you confirm our price is acceptable. | | Certificate | ISO9001,CE, SGS | | Advantage | 1. Competitive price; 2. OEM service available | | Packing | Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand | | Payment terms | FOB, CIF, CFR, L/C, or others. | | Delivery method | by sea, by air or by express service | | Lead Time | 7-15 work days after order confirmed | | Application | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. | | Notes | Special specifications and marks can be made according to customers requirements; | ## Description Galvanized Zinc Hex Flange Head Cap Screw Bolt is part of our flange bolts range (Bolts). ### Key details - **Type:** Flange Head - **Standard:** DIN, GB, ANSI, BSW, JIS, GOST - **Material:** Alloy Steel - **Grade:** 8.8 / 10.9 / 12.9 - **Diameter:** M5-M20 - **Head Style:** Hexagonal - **Groove:** Hexagon - **Surface Treatment:** Black Oxide/Plain/Zinc Plated/HDG Available configurations include head style, standard, grade, surface treatment and diameter. 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$0.14 – 0.30 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 Galvanized Zinc Hex Flange Head Cap Screw Bolt? The listed minimum order is 1,000 pieces, at US$0.14 – 0.30 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size. ### How does the price change with quantity? Volume pricing: US$0.30 for 1,000–4,999 pieces; US$0.14 for 5,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Galvanized Zinc Hex Flange Head Cap Screw Bolt? Type: Flange Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST; Material: Alloy Steel; Grade: 8.8 / 10.9 / 12.9; Diameter: M5-M20; Head Style: Hexagonal. The full specification table and any technical parameter tables are listed on this page. ### Can this product be customized (OEM)? Listed configurations include head style, standard, grade, surface treatment and diameter. 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 flange bolts are available? The Flange Bolts category lists 2,404 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/bolts/flange-bolts/](https://engineeringhardware.com/fastener-products/bolts/flange-bolts/) 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/) ## Request a quote for this product ## Related products [All Flange Bolts →](https://engineeringhardware.com/fastener-products/bolts/flange-bolts/) [![Heavy Duty Ifi111 Hex Flange Bolt HDG Coating Hexagon Flange Bolts for North American Steel Construction and Durable Machinery Connections](https://img.engineeringhardware.com/Heavy-Duty-Ifi111-Hex-Flange-Bolt-HDG-Coating-Hexagon-Flange-Bolts-for-North-American-Steel-Construction-and-Durable-Machinery-Connections.webp)](https://engineeringhardware.com/product/heavy-duty-ifi111-hex-flange-bolt-hdg-coating-hexagon-flange-bolts-for-north/) Flange Bolts ### [Heavy Duty Ifi111 Hex Flange Bolt HDG Coating Hexagon Flange Bolts for North American Steel Construction and Durable Machinery Connections](https://engineeringhardware.com/product/heavy-duty-ifi111-hex-flange-bolt-hdg-coating-hexagon-flange-bolts-for-north/) Hexagon Head · DIN, ANSI, GB, JIS, GOST, BSW **US$0.0012**MOQ 10,000 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Flange Bolts ### [Fastener Manufacturer Flange Bolt and Nuts Weld Bushing Fastener for Furniture Hardware](https://engineeringhardware.com/product/fastener-manufacturer-flange-bolt-and-nuts-weld-bushing-fastener-for-furniture/) Zinc Alloy · Gold-Plated **US$0.47 – 0.77**MOQ 1 piece **US$0.14 – 0.30**MOQ 1,000 piecesGet a quote[WA](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Galvanized%20Zinc%20Hex%20Flange%20Head%20Cap%20Screw%20Bolt%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fgalvanized-zinc-hex-flange-head-cap-screw-bolt%2F)