Made of widely used carbon spring steel with higher strength, hardness, elasticity and hardenability.
Size: 3mm/ 0.12" inner diameter, 7mm/ 0.27" outer diameter, 0.5mm/ 0.02" thickness.
Flat washers evenly distribute pressure not only on the nut but also on the head of the fastener.
The washer prevents damage to the material and reduces the possibility that the nut will come loose from uneven surfaces.
Specification:
M3 x 7 x 0.5mm Steel Flat Washers Inner Diameter: 3mm/ 0.12" ; Outer Diameter: 7mm/ 0.27" ;
Thickness: 0.5mm/ 0.02"
Surface Treatment: Blackening
Material:
It is a carbon spring steel with a wide range of uses. Compared with 65 steel, it has higher strength, hardness, elasticity and hardenability.
This steel is generally used after quenching and tempering at medium temperature.
Material Chemical Composition (%):
Carbon: 0.62-0.70, silicon: 0.17-0.37, manganese: 0.90-1.20, phosphorus ≤ 0.035, sulfur ≤ 0.035, nickel ≤ 0.25, chromium ≤ 0.25, copper ≤ 0.25
Main products
About us
Jiangsu Hongniu Automotive Parts Co., Ltd. was founded in June 2000. Located in Tangzhuang Town, the eastern suburbs of the historic and cultural city of Gaoyou, with convenient transportation. The company covers an area of 35000 square meters and currently has over 300 employees, including 70 high-level and intermediate professional and technical personnel. Registered capital of 20 million yuan, total assets of 78 million yuan, and fixed assets of 56 million yuan. Main products: Series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc. Widely used in industries such as aerospace, machinery, wind power, textiles, automotive manufacturing, petroleum, forging, etc. We have maintained good cooperative relationships with dozens of large and medium-sized enterprises in China, and are highly favored by our customers with our good reputation and excellent quality.
FAQ
Q1: What is your main products?
A1: Our main sale products: series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc.
Q2: How long is your delivery time?
A2: Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.
Q3: What is your payment method?
A3: 30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 5000USD, would suggest you pay 100% inadvance to reduce the bank charges.
Q4: Can you provide a sample?
A4: Sure, Our sample is provided free of charge, but not including courier fees.
Q5: Can you customize the product according to the requirements of drawing sheets and so on?
A5: Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.
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