DIN434 SS316 Stainless Steel Square Taper & Flat Spring Washers Fasteners
Our DIN434 washers are high-quality fastener accessories, including flat spring washers and square taper washers, crafted from premium stainless steel SS316. Manufactured strictly in compliance with DIN434 standards, these washers are designed to complement bolts and nuts, enhancing fastening stability and reliability in various industrial applications.
Stainless steel SS316 material delivers exceptional corrosion resistance, especially against seawater, chemical media, and humid environments, making them ideal for marine, food processing, chemical, and outdoor projects. The flat spring washers provide effective anti-loosening performance by creating elastic tension, preventing bolt loosening caused by vibration. The square taper washers feature a tapered design, ensuring tight fit with uneven surfaces and improving load distribution.
Precision machining ensures accurate dimensions, smooth surfaces, and perfect compatibility with standard bolts and nuts. Each washer undergoes strict quality inspection, including material composition testing and dimensional verification, to guarantee consistent performance and long service life. Widely used in machinery assembly, equipment maintenance, construction, and marine engineering, these DIN434 SS316 flat spring and square taper washers offer a durable, corrosion-resistant solution for secure fastening.
Product Description
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Product Name
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Factory Price Stainless Steel Helical Spring Lock Washer
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Material
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Stainless steel:A2-70,A2-80,A4-70,A4-80
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Color
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Polish, Passication
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Standard
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DIN,ASME,ASNI,ISO
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Grade
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SUS201, SUS304, SUS316, A2-70, A2-80, A4-80
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Finished
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Polish, Passication
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Thread
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Coarse, Fine
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Used
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Building Industry Machinery
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1. Certification: ISO, ROHS, SGS
2. Available Standard: DIN, ANSI, ASTM, JIS, BSW
3. Strength: Grade 4.8,Grade 8.8,Grade10.9,Grade12.9 A2-70, A4-70, A4-80
4. Finishing: Yellow, blue, white zinc plated, Galvanized,HDG,Chromate,Dacromet
5. Available material: Carbon steel, stainelss steel SS304, A2 ,Stainless steel SS314,A4.
6. Size: M2-M100, Length: 5-300mm, Moq: 500pcs, Port: Shenzhen, Shanghai
7. Available Packing: Plastic bags+Chipboard Cartons+Plywood pallet with Belt &Film.
| Size |
ID(mm) |
OD(mm) |
Thickness(mm) |
Unit weight,Kg/1000pcs |
| min |
max |
min |
max |
min |
max |
| SAE NO.4 |
3.05 |
3.37 |
7.8 |
8.12 |
0.64 |
1.01 |
0.29 |
| SAE NO.6 |
3.84 |
4.17 |
9.40 |
9.91 |
0.91 |
1.65 |
0.66 |
| SAE NO.8 |
4.65 |
4.98 |
11.00 |
11.51 |
0.91 |
1.65 |
0.87 |
| SAE NO.10 |
5.44 |
5.77 |
12.57 |
13.08 |
0.91 |
1.65 |
1.12 |
| SAE NO.12 |
6.22 |
6.73 |
14.15 |
14.66 |
1.30 |
2.03 |
1.81 |
| SAE 1/4 |
7.01 |
7.52 |
15.75 |
16.26 |
1.30 |
2.03 |
2.21 |
| SAE 5/16 |
8.61 |
9.12 |
17.30 |
17.86 |
1.30 |
2.03 |
2.51 |
| SAE 3/8 |
10.19 |
10.69 |
20.45 |
21.00 |
1.30 |
2.03 |
3.46 |
| SAE 7/16 |
11.79 |
12.29 |
23.24 |
23.80 |
1.30 |
2.03 |
4.48 |
| SAE 1/2 |
13.36 |
13.87 |
26.80 |
27.74 |
1.88 |
3.07 |
9.02 |
| SAE 9/16 |
14.96 |
15.47 |
29.18 |
30.12 |
1.88 |
3.07 |
10.43 |
| SAE 5/8 |
16.48 |
17.42 |
33.15 |
34.09 |
1.88 |
3.07 |
13.59 |
| SAE 3/4 |
20.45 |
21.39 |
37.13 |
38.07 |
2.74 |
4.06 |
20.11 |
| SAE 7/8 |
23.65 |
24.58 |
44.27 |
45.21 |
2.74 |
4.06 |
31.12 |
| SAE 1 |
26.80 |
27.74 |
50.62 |
51.56 |
2.74 |
4.06 |
40.67 |
| SAE 1-1/8 |
31.57 |
32.51 |
56.97 |
57.91 |
2.74 |
4.06 |
49.41 |
| SAE 1-1/4 |
34.75 |
35.69 |
63.32 |
64.26 |
3.45 |
4.88 |
75.03 |
| SAE 1-3/8 |
37.92 |
38.86 |
69.67 |
70.61 |
3.45 |
4.88 |
91.1 |
| SAE 1-1/2 |
40.10 |
42.04 |
76.02 |
76.96 |
3.45 |
4.88 |
110.8 |
| USS 3/16 NO.4 |
6.22 |
6.73 |
14.15 |
14.66 |
0.91 |
1.65 |
1.81 |
| USS 1/4 |
7.80 |
8.41 |
18.47 |
19.02 |
1.30 |
2.03 |
3.04 |
| USS 5/16 |
9.40 |
9.91 |
22.05 |
22.99 |
1.63 |
2.64 |
5.8 |
| USS 3/8 |
11.00 |
11.51 |
25.22 |
26.16 |
1.63 |
2.64 |
7.42 |
| USS 7/16 |
12.57 |
13.08 |
31.57 |
32.51 |
1.63 |
2.64 |
11.83 |
| USS 1/2 |
14.15 |
14.66 |
34.75 |
35.69 |
2.18 |
3.35 |
18.3 |
| USS 9/16 |
15.75 |
16.26 |
37.13 |
38.07 |
2.18 |
3.35 |
20.48 |
| USS 5/8 |
17.30 |
18.24 |
44.37 |
45.21 |
2.74 |
4.00 |
36.57 |
| USS 3/4 |
20.45 |
21.39 |
50.62 |
51.56 |
3.10 |
4.50 |
52.49 |
| USS 7/8 |
23.65 |
24.58 |
56.97 |
57.91 |
3.45 |
4.88 |
71.75 |
| USS 1 |
26.80 |
27.74 |
63.32 |
64.26 |
3.45 |
4.88 |
87.59 |
| USS 1.1/8 |
31.57 |
32.51 |
69.67 |
70.61 |
3.45 |
4.88 |
102.44 |
| USS 1.1/4 |
34.75 |
35.69 |
76.02 |
76.96 |
3.45 |
4.88 |
121.08 |
| USS 1.3/8 |
37.85 |
39.24 |
82.30 |
83.69 |
3.89 |
5.41 |
159.73 |
| USS 1.1/2 |
41.02 |
42.42 |
88.65 |
90.04 |
3.89 |
5.41 |
184.19 |
| USS 1.5/8 |
44.20 |
45.59 |
95.00 |
96.39 |
3.89 |
5.41 |
210.36 |
| USS 1.3/4 |
47.37 |
48.77 |
101.35 |
102.74 |
3.89 |
5.41 |
238.28 |
| USS 1.7/8 |
50.55 |
51.49 |
107.70 |
109.09 |
3.89 |
5.41 |
267.92 |
| USS 2 |
53.72 |
55.12 |
114.05 |
115.44 |
3.89 |
5.41 |
299.32 |
| USS 2-1∕4 |
60.08 |
61.46 |
120.4 |
121.79 |
4.91 |
6.29 |
387.49 |
| USS 2-1∕2 |
66.43 |
67.81 |
126.75 |
128.14 |
5.33 |
7.11 |
460.45 |
| USS 2-3∕4 |
72.77 |
74.67 |
133.1 |
135 |
5.79 |
7.87 |
544.46 |
| USS 3 |
79.12 |
81.02 |
139.45 |
142.35 |
6.32 |
8.3 |
631.12 |
Product Show
Packing Details
PLASTIC BAG+CARTON+WOOD FIX PALLET
EACH BAG AROUND 3-4KG AND 25KG PER CARTON AND LESS THAN 900KG PER PALLET

Package details:
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
FAQ
1.How do you let me trust you?
We are a Golden supplier in Alibaba who do business for more than 5 years. You can make an order by Alibaba to us directly.
2.How about your price?
High-quality products with a reasonable price suitable for your market.
3.How do you control your quality?
We request a QC inspection for each batch of goods. And we can provide you inspection report and mill certificate if you want..
4.Could you provide free samples?
For new customers, We can provide free samples for standard fasteners. But the clients will pay the express charges. For regular customers, We will send you free samples and pay express charges by ourselves.
5.How about your delivery time?
Generally speaking, All the goods have stock with little quantity, we can delivery them with one week. If the quantity is 1-2container, we can give you with 30-45days.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallet is about 900-960kg, We also can make the customer's logo on the cartons. Or we customized cartons according to customers' requirement, If you need small box packing, we can do according to your requirement.
7.What is your payment term?
We can accept T/T,LC for general order. For new customer, we request 20%-50% T/T in advance, and balance payment should against B/L copy. For regular customer, we can provide delay payment after B/L date about 30-90 days.