Unibridge DIN25201 Dacromet Coating Dual Double fold Stacked Self Locking Washer Saftey Knurling Wedge Lock Washers Loose proof Shock proof Gasket
Wedeg locking washers Dual-stacked Self locking washers S60C.35CrMo SK5 SK7 Dacromet
Unbridge self locking washers created the original wedge-locking technology that secures bolted joints, even when exposed to severe vibration and dynamic loads. It is impossible for our products to loosen unintentionally due to the wedge created underneath the bolt head and nut.
5.0
ODM&OEM:
Acceptable
Certification:
ISO9001, IATF16949
Lead time:
In stock
Port of loading:
Shanghai
Payment terms:
Negotiable
design customization
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product description
Unibridge Wedge-locking washers use mechanical force instead of surface friction to fasten bolted connections subjected to intense vibration and dynamic loads.
Throughout their service life, Those type of washers provide heightened operational dependability and decreased upkeep expenses, concurrently minimizing the likelihood of production interruptions, mishaps, and warranty assertions.
Highest corrosion resistance tested
Unibridge self locking steel washers guarantee the highest level of corrosion resistance available. They undergo a minimum of 1,000 hours of testing in the Neutral Salt Spray Test*, ensuring optimal performance over time, even in the most challenging environments.
Product parameters
| Washer Size | Bolt size (Metric) | Bolt size (UNC) | d | D | T | d | D | T | Weight(PCS) |
| (mm) | (mm) | (mm) | (inch) | (inch) | (inch) | pairs(g) | |||
| NL3 | M3 | #5 | 3.4 | 7 | 1.8 | 1/8” | 1/4” | 1/16” | 0.3 |
| NL3,5 | M3.5 | #6 | 3.9 | 7.6 | 1.8 | 1/8” | 5/16” | 1/16” | 0.4 |
| NL3,5sp | M3.5 | #6 | 3.9 | 9 | 1.8 | 1/8” | 3/8” | 1/16” | 0.6 |
| NL4 | M4 | #8 | 4.4 | 7.6 | 1.8 | 3/16” | 5/16” | 1/16” | 0.4 |
| NL4sp | M4 | #8 | 4.4 | 9 | 1.8 | 3/16” | 3/8” | 1/16” | 0.6 |
| NL5 | M5 | #10 | 5.4 | 9 | 1.8 | 3/16” | 3/8” | 1/16” | 0.5 |
| NL5sp | M5 | #10 | 5.4 | 10.8 | 1.8 | 3/16” | 7/16” | 1/16” | 1.1 |
| NL6 | M6 | 6.5 | 10.8 | 1.8 | 1/4” | 7/16” | 1/16” | 0.7 | |
| NL6sp | M6 | 6.5 | 13.5 | 2.5 | 1/4” | 1/2” | 1/8” | 2 | |
| NL1/4” | 1/4" | 7.2 | 11.5 | 2.5 | 1/4” | 7/16” | 1/8” | 1.2 | |
| NL1/4”sp | 1/4" | 7.2 | 13.5 | 2.5 | 1/4” | 1/2” | 1/8” | 1.8 | |
| NL8 | M8 | 5/16" | 8.7 | 13.5 | 2.5 | 5/16” | 1/2” | 1/8” | 1.5 |
| NL8sp | M8 | 5/16" | 8.7 | 16.6 | 2.5 | 5/16” | 5/8” | 1/8” | 2.9 |
| NL3/8” | 3/8" | 10.3 | 16.6 | 2.5 | 7/16” | 5/8” | 1/8” | 2.3 | |
| NL3/8”sp | 3/8" | 10.3 | 21 | 2.5 | 7/16” | 13/16” | 1/8” | 4.6 | |
| NL10 | M10 | 10.7 | 16.6 | 2.5 | 7/16” | 5/8” | 1/8” | 2.3 | |
| NL10sp | M10 | 10.7 | 21 | 2.5 | 7/16” | 13/16” | 1/8” | 4.4 | |
| NL11 | M11 | 7/16" | 11.4 | 18.5 | 2.5 | 7/16” | 3/4” | 1/8” | 2.9 |
| NL12 | M12 | 13 | 19.5 | 2.5 | 1/2” | 3/4” | 1/8” | 2.9 | |
| NL12sp | M12 | 13 | 25.4 | 3.4 | 1/2” | 1” | 1/8” | 9.1 | |
| NL1/2” | 1/2" | 13.5 | 19.5 | 2.5 | 1/2” | 3/4” | 1/8” | 2.7 | |
| NL1/2”sp | 1/2" | 13.5 | 25.4 | 3.4 | 1/2” | 1” | 1/8” | 9.3 | |
| NL14 | M14 | 9/16" | 15.2 | 23 | 3.4 | 5/8” | 15/16” | 1/8” | 6.3 |
| NL14sp | M14 | 9/16" | 15.2 | 30.7 | 3.4 | 5/8” | 1 3/16” | 1/8” | 14.6 |
| NL16 | M16 | 5/8" | 17 | 25.4 | 3.4 | 11/16” | 1” | 1/8” | 6.9 |
| NL16sp | M16 | 5/8" | 17 | 30.7 | 3.4 | 11/16” | 1 3/16” | 1/8” | 12.9 |
| NL18 | M18 | 19.5 | 29 | 3.4 | 3/4” | 1 1/8” | 1/8” | 8.9 | |
| NL18sp | M18 | 19.5 | 34.5 | 3.4 | 3/4” | 1 3/8” | 1/8” | 15.8 | |
| NL3/4” | 3/4" | 20 | 30.7 | 3.4 | 13/16” | 1 3/16” | 1/8” | 10.5 | |
| NL3/4”sp | 3/4" | 20 | 39 | 3.4 | 13/16” | 1 9/16” | 1/8” | 22 | |
| NL20 | M20 | 21.4 | 30.7 | 3.4 | 13/16” | 1 3/16” | 1/8” | 9.5 | |
| NL20sp | M20 | 21.4 | 39 | 3.4 | 13/16” | 1 9/16” | 1/8” | 20.9 | |
| NL22 | M22 | 7/8" | 23.4 | 34.5 | 3.4 | 15/16” | 1 3/8” | 1/8” | 12.5 |
| NL22sp | M22 | 7/8" | 23.4 | 42 | 4.6 | 15/16” | 1 5/8” | 3/16” | 31.9 |
| NL24 | M24 | 25.3 | 39 | 3.4 | 1” | 1 9/16” | 1/8” | 17.4 | |
| NL24sp | M24 | 25.3 | 48.5 | 4.6 | 1” | 1 15/16” | 3/16” | 45.1 | |
| NL1” | 1" | 27.9 | 39 | 3.4 | 1 1/8” | 1 9/16” | 1/8” | 15.3 | |
| NL1”sp | 1" | 27.9 | 48.5 | 4.6 | 1 1/8” | 1 15/16” | 3/16” | 42 | |
| NL27 | M27 | 28.4 | 42 | 5.8 | 1 1/8” | 1 5/8” | 1/4” | 31.4 | |
| NL27sp | M27 | 28.4 | 48.5 | 5.8 | 1 1/8” | 1 15/16” | 1/4” | 52.7 | |
| NL30 | M30 | 1 1/8" | 31.4 | 47 | 5.8 | 1 1/4” | 1 7/8” | 1/4” | 41 |
| NL30sp | M30 | 1 1/8" | 31.4 | 55 | 5.8 | 1 1/4” | 2 3/16” | 1/4” | 70 |
| NL33 | M33 | 1 1/4" | 34.4 | 48.5 | 5.8 | 1 3/8” | 1 15/16” | 1/4” | 38.9 |
| NL33sp | M33 | 1 1/4" | 34.4 | 58.5 | 5.8 | 1 3/8” | 2 5/16” | 1/4” | 80 |
| NL36 | M36 | 1 3/8" | 37.4 | 55 | 5.8 | 1 1/2” | 2 3/16” | 1/4” | 54.9 |
| NL36sp | M36 | 1 3/8" | 37.4 | 63 | 5.8 | 1 1/2” | 2 1/2” | 1/4” | 85.8 |
| NL39 | M39 | 1 1/2" | 40.4 | 58.5 | 5.8 | 1 9/16” | 2 5/16” | 1/4” | 58.9 |
| NL42 | M42 | 43.2 | 63 | 5.8 | 1 11/16” | 2 1/2” | 1/4” | 79.7 | |
| NL45 | M45 | 1 3/4" | 46.2 | 70 | 7 | 1 13/16” | 2 3/4” | 1/4” | 102 |
| NL48 | M48 | 49.6 | 75 | 7 | 1 15/16” | 2 15/16” | 1/4” | 120 | |
| NL52 | M52 | 2" | 53.6 | 80 | 7 | 2 1/8” | 3 1/8” | 1/4” | 135 |
| NL56 | M56 | 2 1/4" | 59.1 | 85 | 7 | 2 5/16” | 3 3/8” | 1/4” | 135 |
| NL60 | M60 | 63.4 | 89 | 7 | 2 1/2” | 3 9/16” | 1/4” | 152 | |
| NL64 | M64 | 2 1/2" | 67.1 | 95 | 7 | 2 5/8” | 3 3/4” | 1/4” | 167 |
| NL68 | M68 | 71.1 | 100 | 9.5 | 2 13/16” | 3 15/16” | 3/8” | 282 | |
| NL72 | M72 | 75.1 | 105 | 9.5 | 2 15/16” | 4 1/8” | 3/8” | 307 | |
| NL76 | M76 | 3" | 79.1 | 110 | 9.5 | 3 1/8” | 4 5/16” | 3/8” | 333 |
| NL80 | M80 | 83.1 | 115 | 9.5 | 3 1/4” | 4 1/2” | 3/8” | 360 | |
| NL85 | M85 | 88.1 | 120 | 9.5 | 3 1/2” | 4 3/4” | 3/8” | 378 | |
| NL90 | M90 | 92.4 | 130 | 9.5 | 3 5/8” | 5 1/8” | 3/8” | 477 | |
| NL95 | M95 | 97.4 | 135 | 9.5 | 3 13/16” | 5 5/16” | 3/8” | 498 | |
| NL100 | M100 | 103.4 | 145 | 9.5 | 4 1/16” | 5 11/16” | 3/8” | 589 | |
| NL105 | M105 | 108.4 | 150 | 9.5 | 4 1/4” | 5 15/16” | 3/8” | 613 | |
| NL110 | M110 | 113.4 | 155 | 9.5 | 4 7/16” | 6 1/8” | 3/8” | 635 | |
| NL115 | M115 | 118.4 | 165 | 9.5 | 4 11/16” | 6 1/2” | 3/8” | 753 | |
| NL120 | M120 | 123.4 | 170 | 9.5 | 4 7/8” | 6 11/16” | 3/8” | 779 | |
| NL125 | M125 | 128.4 | 173 | 9.5 | 5 1/16” | 6 13/16” | 3/8” | 766 | |
| NL130 | M130 | 133.4 | 178 | 9.5 | 5 1/4” | 7” | 3/8” | 792 |
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+86 18964658013
+86 18964658013Company Introduction
In 2007 Shanghai Unibridge Enterprise Co., Ltd. was founded. Specializing in CNC parts and fasteners production.
Now we have Head office locates in Shanghai, China and Branch in Hong Kong and Changshu Jiangsu province.
Contact with us
Contact person: Harris.zhang
WhatsApp: +86 18101761015
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Room 1830 No. 1459 Gaotai Road. JiaDing District, - 201801 Shanghai - PR. China