Here is a rewritten and improved version of the provided content in English, with added details to make it more natural and engaging, and to meet the 500-character minimum: --- **Basic Information** - **Model No.:** DIN931 - **Type:** Hexagon Head - **Head Style:** Hexagonal - **Grade:** 8.8 - **Finish:** Black - **Trademark:** NGL - **Origin:** Ningbo, China - **Material:** Carbon Steel - **Connection:** Common Bolt - **Standard:** DIN - **Application:** Machinery - **DIN931:** Available in plain, black finished, zinc-plated (Galv), or hot-dip galvanized - **Specification:** DIN931 - **HS Code:** 7318151001 ![Hex Head Cap Screw/Bolt](http://i.bosscdn.com/uploads/6a/5f/3b/f2611808722fd6607942697c4b.jpg) **Key Features** - **Material:** High Strength Steel - **Standard:** DIN, ANSI/ASME, BS, AS - **Size Range:** M6 to M100 - **Surface Finish:** Black, Zinc Plated, Hot-Dip Galvanized, Nickel, Phosphate Black, DACRO Coating - **Export Markets:** Global - **Packing:** Bag + Carton + Pallet - **Production Capacity:** 50 tons per month **Product Description** Our high-strength hex head cap screws are manufactured according to international standards such as DIN, ANSI/ASME, BS, and ISO. These bolts are ideal for use in machinery, construction, and industrial applications where durability and reliability are essential. **Specifications** - **Standards:** DIN931/933, DIN558/601, DIN6914, DIN960/961, ANSI, BS, ISO - **Material Options:** Carbon steel, Alloy steel, Stainless steel (customizable) - **Grades Available:** 4.8, 5.6, 6.8, 8.8, 10.9, 12.9 - **Dimensions:** Metric (6mm–100mm), Imperial (1/8"–2 1/2") - **Length:** 6mm–300mm - **Surface Treatments:** Plain, Black, Zinc Plated, Hot-Dip Galvanized, Nickel, Phosphate Black, DACRO Coating - **Packing:** Standard or customized packaging available **Technical Data** | Thread Size | Pitch (mm) | K (mm) | E (mm) | B (mm) | S (mm) | L (mm) | |-------------|------------|--------|--------|--------|--------|--------| | M6 | 0.7 | 2.8 | 7.66 | - | 7 | 8–40 | | M8 | 0.8 | 3.5 | 8.79 | 8.63 | 8 | 8–40 | | M10 | 1.0 | 4.0 | 11.05 | 10.89 | 10 | 8–50 | | M12 | 1.25 | 5.3 | 14.38 | 14.2 | 13 | 12–60 | | M14 | 1.5 | 6.4 | 18.9 | 18.72 | 17 | 16–60 | | M16 | 1.75 | 7.5 | 21.1 | 20.88 | 19 | 20–80 | | M18 | 2.0 | 8.8 | 24.49 | 23.91 | 22 | 25–80 | | M20 | 2.0 | 10.0 | 26.75 | 26.17 | 24 | 30–100 | | M22 | 2.5 | 11.5 | 30.14 | 29.56 | 27 | 30–100 | | M24 | 2.5 | 12.5 | 33.53 | 32.95 | 30 | 40–100 | | M27 | 2.5 | 14.0 | 35.72 | 35.03 | 32 | 50–100 | | M30 | 3.0 | 15.0 | 35.98 | 39.55 | 36 | 50–100 | | M33 | 3.5 | 17.0 | 45.20 | 45.20 | 41 | 60–100 | | M36 | 3.5 | 18.5 | 50.85 | 50.85 | 46 | 70–100 | We ensure high-quality products that meet global standards and customer requirements. For more details or custom orders, feel free to contact us.

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