| Material: | Carbon Steel/Stainless Steel |
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| Type: | Round Head |
| Connection: | Common Bolt |
| Samples: |
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| Customization: |
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Audited Supplier There are several types of expansion bolts available, including mechanical, and undercut anchors. Mechanical expansion bolts use a wedge or tapered shape to create a secure hold within the material. Undercut anchors use a special drilling technique to create a larger hole in the material, allowing the sleeve to expand even further for a stronger hold.
Expansion bolts are commonly used in construction and engineering applications where a secure hold is required. They are easy to install and can be used in a variety of materials, including concrete, brick, and stone.
Product Name: Hexagon Nuts
Quality hex nutss are made from high-quality materials that are carefully selected for their strength, durability, and resistance to corrosion. The manufacturing process for hex nuts should be precise and consistent, with strict quality control measures in place to ensure that each nut meets the required specifications.
Application
Scope of applicationIndustry, home decoration, medical equipment, food factories, car and boat parts and other industries
Advantages:
1. Supply wide range of hex bolts and nuts
2. Surface Treatment Customized: H.D.G hot dip galvanized, zinc plated(blue and white, yellow, etc.), black oxide, chrome, etc.
3. M6-M20 or more hex nuts dimensions optional
4. Material Optional: Stainless Steel/Carbon Steel/Alloy Steel/High Strength Steel, etc.
5. Standard hex bolt: ASTM/ANSI, DIN, GB, AS, JIS
| specification | pitch of screw(mm) | M S |
S | ||
| max | min | max | min | ||
| M6 | 1 | 5 | 4.7 | 10 | 9.78 |
| M8 | 1.25 | 6.5 | 6.14 | 13 | 12.73 |
| M10 | 1.5 | 8 | 7.64 | 17 | 16.73 |
| M12 | 1.75 | 10 | 9.64 | 19 | 18.67 |
| M14 | 2 | 11 | 10.3 | 22 | 21.67 |
| M16 | 2 | 13 | 12.3 | 24 | 23.67 |
| M18 | 2.5 | 15 | 14.3 | 27 | 26.16 |
| M20 | 2.5 | 16 | 14.9 | 30 | 29.16 |
| Nut DIN931-1/933 | ||||
| Size | Model | Head thickness | Opposite side diameter (min) | Diagonal diameter |
| M6 | A | 3.85-4.15 | 9.78 | 11.05 |
| M8 | A | 5.15-5.45 | 12.73 | 14.38 |
| M10 | A | 6.22-6.58 | 15.73 | 17.77 |
| M12 | A | 7.32-7.68 | 17.73 | 20.03 |
| M16 | A | 9.82-10.18 | 23.67 | 26.75 |
| M20 | A | 12.28-12.71 | 29.67 | 33.53 |
| Nut GB6170 | ||||
| Size | Model | Head thickness | Opposite side diameter (min) | Diagonal diameter |
| M6 | A | 3.85-4.15 | 9.78 | 11.05 |
| M6 | B | 3.76-4.24 | 9.64 | 10.89 |
| M8 | A | 5.15-5.45 | 12.73 | 14.38 |
| M8 | B | 5.06-5.54 | 12.57 | 14.2 |
| M10 | A | 6.22-6.58 | 15.73 | 17.77 |
| M10 | B | 6.11-6.69 | 15.57 | 17.59 |
| M12 | A | 7.32-7.68 | 17.73 | 20.03 |
| M12 | B | 7.21-7.29 | 17.57 | 19.85 |
| M16 | A | 9.82-10.18 | 23.67 | 26.75 |
| M16 | B | 9.71-10.29 | 23.16 | 26.17 |
| M20 | A | 12.28-12.71 | 29.67 | 33.53 |
| M20 | B | 12.15-12.85 | 29.16 | 32.95 |
| Nut GB6172 | ||||
| Size | Model | Head thickness | Opposite side diameter (min) | Diagonal diameter |
| M6 | 2.9-3.2 | 9.78-10 | 11.05 | |
| M8 | 3.7-4 | 12.73-13 | 14.38 | |
| M10 | 4.7-5 | 15.73-16 | 17.77 | |
| M12 | 5.7-6 | 17.73-18 | 20.03 | |
| M16 | 7.42-8 | 23.67-24 | 26.75 | |
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Changzhou Ningsheng Hardware & Electrical Appliance Co., Ltd. is a professional hardware manufacturing company specializing in wedge anchor bolts and other fastener parts. The company covers an area of 15,000 square meters and is located in Hengshanqiao Town, Changzhou Economic Development Zone, Jiangsu Province.
Since its establishment in 2000, the company now has more than twelve mature automatic production and assembly lines, with an annual output of more than 7000 tons of hardware accessories. The company's main products include: various types of wedge anchor bolts(GB/DIN/ANSI), the hex bolts, the screw, the washers and other products.
Our factory has always been based on good faith management, product quality as the core, customer demand as the guidance, to provide customers with cost-effective products. At present, it has provided high quality products and services for many retailers and many well-known elevator manufacturers in China so far.
Our logistics and packaging are reliable and trustworthy!
The company has a group of high-quality technical personnel, sophisticated equipment, perfect monitoring facilities. We also have GB/T19001-2008/ ISO9001:2008 international quality system certification.
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Audited Supplier 
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