--- title: "Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head" description: "Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head — Countersunk, Plow & Elevator Bolts. MOQ 10,000 pieces, US$0.12 – 1.80." url: https://engineeringhardware.com/product/countersunk-bolts-din7991-class-8-8-hexagon-socket-countersunk-head/ source: Engineering Hardware & Fasteners --- # Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head [![Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head](https://img.engineeringhardware.com/Countersunk-Bolts-DIN7991-Class-8-8-Hexagon-Socket-Countersunk-Head.webp)](https://img.engineeringhardware.com/Countersunk-Bolts-DIN7991-Class-8-8-Hexagon-Socket-Countersunk-Head.webp) - Standard & made-to-drawing parts - Checked before shipping - Air, sea & express delivery [Bolts › Countersunk, Plow & Elevator Bolts](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) Updated 2026-11-03 · [Markdown version](https://engineeringhardware.com/product/countersunk-bolts-din7991-class-8-8-hexagon-socket-countersunk-head.md) Model no. **A307** | **US$1.80**10,000–99,999 pieces | **US$0.12**100,000+ pieces | | --- | --- | MOQ 10,000 pieces · Final price confirmed in your quote - **Material:** Steel - **Head Style:** Hexagonal - **Standard:** DIN - **Grade:** / - **Finish:** Plain - **Surface Treatment:** Black Oxide Get a quote [WhatsApp](https://wa.me/8615999653684?text=Hi%20Engineering%20Hardware%20%26amp%3B%20Fasteners%2C%20I%20would%20like%20a%20quote%20for%3A%20Countersunk%20Bolts%20DIN7991%20Class%208.8%20Hexagon%20Socket%20Countersunk%20Head%20%E2%80%94%20https%3A%2F%2Fengineeringhardware.com%2Fproduct%2Fcountersunk-bolts-din7991-class-8-8-hexagon-socket-countersunk-head%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 | Steel | | Type | Hexagon Head | | Model NO. | A307 | | Connection | Common Bolt | | Head Style | Hexagonal | | Standard | DIN | | Grade | / | | Application | Machinery, Chemical Industry, Environmental, Building, Industry | | Finish | Plain | | Transportation | Ship | | Surface Treatment | Black Oxide | | Transport Package | Carton+Pallet | | Specification | M6-M100 | | Origin | Zhejiang, China | | Production Capacity | 100000 Piece/Pieces Per Month | | Category | [Countersunk, Plow & Elevator Bolts](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) | ## Technical parameters | item | value | | --- | --- | | Finish | Plain | | Material | Steel | | Place of Origin | China | | | Zhejiang | | Model Number | DIN7991 | | Standard | DIN | | Material | Steel | | Surface treatment | Black Oxide | | Application | Industry | | Packing | Cartons+plastic Bags | | Head type | Hexagon Flange Head | ## Description Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head is part of our countersunk, plow & elevator bolts range (Bolts). ### Key details - **Type:** Hexagon Head - **Standard:** DIN - **Material:** Steel - **Grade:** / - **Head Style:** Hexagonal - **Surface Treatment:** Black Oxide - **Finish:** Plain - **Connection:** Common Bolt Available configurations include material, head style, standard, grade and finish. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request. ### Ordering through Engineering Hardware & Fasteners Minimum order is 10,000 pieces at US$0.12 – 1.80 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 Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head? The listed minimum order is 10,000 pieces, at US$0.12 – 1.80 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$1.80 for 10,000–99,999 pieces; US$0.12 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote. ### What are the main specifications of Countersunk Bolts DIN7991 Class 8.8 Hexagon Socket Countersunk Head? Type: Hexagon Head; Standard: DIN; Material: Steel; Grade: /; Head Style: Hexagonal; Surface Treatment: Black Oxide. 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 finish. 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 countersunk, plow & elevator bolts are available? The Countersunk, Plow & Elevator Bolts category lists 533 products in different sizes, materials and finishes: [https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-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 Countersunk, Plow & Elevator Bolts →](https://engineeringhardware.com/fastener-products/bolts/countersunk-plow-elevator-bolts/) [![Cutting Edge End Bits Parts 4f3664/4K0367 Plow Bolt Nut for Excavator Factory Supply Double Long 20*180mm Bucket Bolts and Nuts for Excavator Bucket Pin](https://img.engineeringhardware.com/Cutting-Edge-End-Bits-Parts-4f3664-4K0367-Plow-Bolt-Nut-for-Excavator-Factory-Supply-Double-Long-20-180mm-Bucket-Bolts-and-Nuts-for-Excavator-Bucket-Pin.webp)](https://engineeringhardware.com/product/cutting-edge-end-bits-parts-4f3664-4k0367-plow-bolt-nut-for-excavator-factory-supply/) Countersunk, Plow & Elevator Bolts ### [Cutting Edge End Bits Parts 4f3664/4K0367 Plow Bolt Nut for Excavator Factory Supply Double Long 20*180mm Bucket Bolts and Nuts for Excavator Bucket 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