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[China]
Trade Verify
Address: 117-119, building 28, Nanfang stainless steel trading center, Xinwu District, Wuxi
Contact name:david
EUROTECH FASTENERS (WUXI) CO., LTD |
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Verified Suppliers
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Description
Our Locking Washers are made from metal, with either a stainless steel or zinc plated finish. These External Tooth Lock Washers have been developed for locking screws, bolts and nuts in place, and offer ideal prevention for the loosening of PCB spacers caused by vibrations.The Tooth Lock Washer, also known as an Electrical Contact Washer, has tooth-like serrations on the external diameter that help the toothed washer prevent bolted joints from loosening, through the use of friction.Our stainless steel toothed washers offer good corrosion and wear resistance. The zinc plated external tooth washer option, is ideal for applications where a high mechanical strength is needed. The lower material cost makes it an alternative to brass, when conductivity is not a critical issue. Zinc plating provides a professional finish and is RoHS compliant.
This external tooth lock washer is ideal for added security in fixings and fastenings. They function in the same way as a standard washer, by distributing the load of a bolt against a surface material, but have a locking action that prevents turning of the fastener, meaning there is less chance of the fixing loosening over time or under repeated stress. As such they are commonly used wherever vibration is a factor.
Specification
Material | 1.StainlessSteel:SS201,SS303,SS304,SS316,SS410,SS420 2.Steel:C45(K1045), C46(K1046),C20 3.Carbon Steel: 1010,1035,1045 4.Aluminum or Aluminum Alloy:Al6061,Al6063,Al7075,etc 5.Brass:H59,H62,Copper,Bronze |
Grade | SAE J429 Gr.2, 5,8; ASTM A307Gr.A,A193 B7,B8,B8M,A194 2H, Class
4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. |
Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel,
Chrome, H.D.G and etc. |
Thread | UNC,UNF,UEF,UN,UNS |
Standard | ISO, DIN, ANSI, JIS, BS and Non-standard |
Sample Service | Samples are all in free. |
Certificate | ISO9001,CE, SGS, BV |
Advantage | 1. Competitive price; 2. OEM service available |
Packing | Bulk in cartons (25kg Max.)+wood Pallet or according to customer
special demand |
Payment terms | FOB, CIF, CFR, L/C, or others. |
Delivery method | by sea, by air or by express service |
Lead Time | 7-15 work days after order confirmed |
Application | Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind
Energy; Mechanical Machine; Automobile: Home Decorating and etc. |
Notes | Special specifications and marks can be made according to customers
requirements; |
| Size | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 |
| Diameter (ID) | 2.2MM | 2.7MM | 3.2MM | 3.2MM | 4.3MM | 5.3MM | 6.4MM | 8.4MM |
| Diameter (OD) | 4.5MM | 5.5MM | 6MM | 6MM | 8MM | 10MM | 11MM | 15MM |
| Thickness (T) | 0.3MM | 0.4MM | 0.4MM | 0.5MM | 0.5MM | 0.6MM | 0.7MM | 0.8MM |
| Size | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 |
| Diameter (ID) | 10.5MM | 13MM | 15MM | 17MM | 19MM | 21MM | 23MM | 25MM |
| Diameter (OD) | 18MM | 20.5MM | 24MM | 26MM | 30MM | 33MM | 36MM | 38MM |
| Thickness (T) | 0.9MM | 1.0MM | 1.0MM | 1.2MM | 1.4MM | 1.4MM | 1.5MM | 1.5MM |
Features and Benefits
Shakeproof Washers - External
Bright zinc plated for corrosion-resistance
Ideal for dynamic loads and vibration environments
Applications
External tooth lock washers, sometimes known as star washers, are a
type of washer specifically designed to prevent loosening in larger
fastener heads (as opposed to internal tooth types that are better
for smaller fastener heads.) They are designed to fortify
fastenings against dynamic loads, and as such are used in machinery
or materials that are often subjected to vibration or continuous
movement. They might typically be used in;
Domestic appliances such as washers and dryers
Industrial machinery
Automotive industries
