Handan city Yongnian District Maide Fasteners Co. Ltd
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Delivery Time | 7-30work days |
| Packaging Details | Bags (25kg) |
| Material | Iron |
| Size | M3-M52 |
| Grade | 4.8 |
| Color: | White & Yellow |
| Standard | DIN |
| Brand Name | MAIDE |
| Model Number | M3-M56 |
| Certification | ISO |
| Place of Origin | Yongnian，Hebei,China |
View Detail Information
Explore similar products
Electrogalvanizing Flat Metal Washers Carbon Steel Yellow / White Zinc Plated M3
4.8 Grade Iron Precision Ground Galvanized Flat Washers DIN125 / DIN9021
Large Diameter Stainless Steel Flat Washers / Fender Washers / Spacer Washers
Carbon Steel Material Flat Metal Washers Hot Dip Galvanizing M10 White Zinc
Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Delivery Time | 7-30work days |
| Packaging Details | Bags (25kg) | Material | Iron |
| Size | M3-M52 | Grade | 4.8 |
| Color: | White & Yellow | Standard | DIN |
| Brand Name | MAIDE | Model Number | M3-M56 |
| Certification | ISO | Place of Origin | Yongnian，Hebei,China |
| High Light | hardened flat washer ，heavy duty flat washer | ||
Round Carbon Steel Heavy Duty Flat Metal Washers Palte Hot Dip Galvanized
Product Description
Flat washers are usually thin pieces of various shapes to reduce friction, prevent leaks, isolate, prevent loosening, or distribute pressure. This material is used in many materials and structures to perform a variety of similar functions. Due to the limitations of the material and process of the threaded fasteners, the bearing surfaces of the fasteners such as the bolts are not large, so that the surface of the parts to be joined is protected to reduce the compressive stress of the bearing surface, and washers are used. In order to prevent loosening of the connection pair, loose-proof spring washers and multi-tooth lock washers, round nut stop washers and saddle-shaped, corrugated, conical elastic washers are used.
Flat washers are mainly used to reduce the pressure. When some parts are tightened with large axial forces, the washers are easily pressed into a dish shape. In this case, the material can be changed and the hardness can be improved.
The Role of Flat Mat
1. Increase the contact area between the screw and the machine.
2. Eliminate damage to the surface of the machine when the spring pad is unloaded. When used, it must be a spring pad and a flat pad. The flat pad is facing the surface of the machine. The spring pad is between the flat pad and the nut.
Flat pad standard
National standards are different.
Here is the United States flat pad standard:
| Specification | Minor Diameter | Outside Diameter | Thickness Tolerance | Thickness Tolerance Disintegration |
| USS 3/16 | 6.22～6.73 | 14.15～14.66 | 0.91～1.65 | 0.91～1.40 |
| 1.40～1.65 | ||||
| USS 1/4 | 7.80～8.31 | 18.47～19.02 | 1.30～2.03 | 1.30～1.65 |
| 1.65～2.03 | ||||
| USS 5/16 | 9.40～9.91 | 22.05～22.99 | 1.63～2.64 | 1.63～2.20 |
| 2.20～2.64 | ||||
| USS 3/8 | 11.00～11.51 | 25.22～26.16 | 1.63～2.64 | 1.63～2.20 |
| 2.20～2.64 | ||||
| USS 7/16 | 12.57～13.08 | 31.57～32.51 | 1.63～2.64 | 1.63～2.20 |
| 2.20～2.64 | ||||
| USS 1/2 | 14.15～14.60 | 34.75～35.69 | 2.18～3.35 | 2.18～2.70 |
| 2.70～3.00 | ||||
| 3.00～3.35 | ||||
| USS 9/16 | 15.75～16.26 | 37.13～38.07 | 2.18～3.35 | 2.18～2.70 |
| 2.70～3.00 | ||||
| 3.00～3.35 | ||||
| USS 5/8 | 17.30～18.24 | 44.27～45.21 | 2.74～4.06 | 2.74～3.20 |
| 3.20～3.60 | ||||
| 3.60～4.06 | ||||
| USS 3/4 | 20.45～21.39 | 50.62～51.56 | 3.10～4.50 | 3.10～3.60 |
| 3.60～4.20 | ||||
| 4.20～4.50 | ||||
| USS 7/8 | 23.65～24.58 | 56.97～57.91 | 3.45～4.88 | 3.45～4.00 |
| 4.00～4.30 | ||||
| 4.30～4.88 | ||||
| USS 1 | 26.80～27.74 | 63.32～64.26 | 3.45～4.88 | 3.45～4.00 |
| 4.00～4.30 | ||||
| 4.30～4.88 | ||||
| USS 11/8 | 31.57～32.51 | 69.67～70.61 | 3.45～4.88 | 3.45～4.00 |
| 4.00～4.30 | ||||
| 4.30～4.88 | ||||
| USS 11/4 | 34.75～35.69 | 76.02～76.96 | 3.45～4.88 | 3.45～4.00 |
| 4.00～4.30 | ||||
| 4.30～4.88 | ||||
| USS 13/8 | 37.85～39.24 | 82.30～83.69 | 3.89～5.41 | 3.89～4.40 |
| 4.40～5.00 | ||||
| 5.00～5.41 | ||||
| USS 11/2 | 41.02～42.42 | 88.65～90.04 | 3.89～5.41 | 3.89～4.40 |
| 4.40～5.00 | ||||
| 5.00～5.41 | ||||
| USS 15/8 | 44.20～45.59 | 95.00～96.39 | 3.89～5.41 | 3.89～4.40 |
| 4.40～5.00 | ||||
| 5.00～5.41 | ||||
| USS 13/4 | 47.37～48.77 | 101.35～102.74 | 3.89～5.41 | 3.89～4.40 |
| 4.40～5.00 | ||||
| 5.00～5.41 | ||||
| USS 17/8 | 50.55～51.04 | 107.70～109.09 | 3.89～5.41 | 3.89～4.40 |
| 4.40～5.00 | ||||
| 5.00～5.41 | ||||
| USS 2 | 53.72～55.12 | 114.05～115.44 | 3.89～5.41 | 3.89～4.40 |
| 4.40～5.00 | ||||
| 5.00～5.41 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Seller,Other
Year Established:
1997
Ecer Certification：
Active Member
Handan city Yongnian District Maide Fasteners Co. Ltd Handan Maide Fastener Co.Ltd has own factory and the factory has over 15years experience in fasteners products. Our factroy occupied5000 square meters,and located in the largest distribution center of fasteners--Yongnian distric... Handan city Yongnian District Maide Fasteners Co. Ltd Handan Maide Fastener Co.Ltd has own factory and the factory has over 15years experience in fasteners products. Our factroy occupied5000 square meters,and located in the largest distribution center of fasteners--Yongnian distric...
Get in touch with us
Leave a Message, we will call you back quickly!