Made in China Stainless Steel 304 316 DIN 127 Top Quality Spring Lock Washer

Made in China stainless steel 304 316 DIN 127 Top Quality Spring Lock Washer A washer is a thin plate (typically disk-shaped) with a hole (typically in the middle) that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are as a spacer, spring (belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). Washers usually have an outer diameter (OD) about twice the width of their inner diameter (ID).Washers are usually metal or plastic. High quality bolted joints require hardened steel washers to prevent the loss of pre-load due to Brinelling after the torque is applied.The main uses of stud are:1, in the main body of large equipment, need to install the accessories, such as sight glasses, mechanical seal, deceleration machine frame, etc., this is just use the stud, end turned into the main body, the other end with nut after installed accessories, because the attachment is often removed, thread will wear or damage, use the stud replacement will be very convenient.2. When the thickness of the connecting body is very large and the length of the bolt is very long, the bolts will be used!3, used to connect thick plate and inconvenient to use hexagonal bolt connection, such as concrete roof frame, roof beam hanging monorail beam hanging parts.StandardDIN,ASTM/ANSI JIS EN ISO,AS,GBMaterialStainless Steel: SS201, SS303, SS304, SS316,SS316L,SS904L,F593Steel Grade: DIN: Gr.4.6,4.8,5.6,5.8,8.8,10.9,12.9;  SAE: Gr.2,5,8;ASTM: 307A,307B,A325,A394,A490,A449FinishingZinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide,Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel plated  Customized ProductsLead timeBusy season:15-30days,Slack seaon:10-15daysStock ProductsSteel:4.8Grade DIN6923,8.8Grade 10.9Grade of GB5783 and GB5782Stainless steel: All DIN Standard stainless steel BoltFree Samples for standard fastenerFor more information visit:hainafastener.en.made-in-china.comAbout UsJiaxing Haina Fastener co. Ltd was established in 2010, located in the hometown of fasteners jiaxing city. For many years of export experience, our products has been best-selling in Europe, the United States, the Middle East and Southeast Asia. The products are manufactured by more functions machine, which is brought in domestic and foreign well-known enterprises. The products made are fully compatible with the international standards, well received by domestic and foreign customers. Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.Our ServicesProfessional Manufacturer: All of our Fastener are designed and manufactured according to buyers' specification and performance.Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.Cost effective: Competitive prices with professional factory supplyPerfect fastening solution with 10 years experiences to solve your problem: Wide range of parts selection.Customized Ideal Fasteners: customized services according to the samples and drawings offeredworkshopPacking detailsCertificateRFQ1.How do you let me trust you. We have own import & export right, and we are Gold mumber of alibaba and made in china, We get credit guarantee from Alibaba Group. you can make an order by alibaba to us directly. 2.How about your price.High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.3. How do you control your quality.We request QC inspect every productions links for each bacth goods.And we can provide you MTC and mill certificate when the goods is finished.4.Could you provide free samples?For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer,We will send you free samples and pay express charges by ourself.5.Do you accept small order?Sure, we can accept any orders, we keep lots of stock for ALL STAINLESS STEEL FASTENER, CARBON STEEL NUT AND PART BOLT,Like hex weld nut, cage nut, wing nut, square weld nut,cap nut, hex nut,flange nut.Metric 8.8Grade,10.9Grade 12.9Grade Hex bolt and Hex Socket cap screw,Part ASME Hex cap screw.6.How about your delivery timeGeneral speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce your goods.7.What is your packing.Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requestment8.What is your payment termWe can accept T/T,LC for general order ,Paypal and Western union for small order or samples order.