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Lock Screw(ND Patch)
Lock Screw(ND Patch)
  • Products Name: Lock Screw(ND Patch)
  • High Quality Product
    Competitive Price
    Punctual Delivery
    Best Service Support

Products Infomation

How ND Patch Works:
When assembled with a mating part the resilient ND Patch is compressed. The compressed engineered plastic (typically a Nylon Patch) provides locking action in the thread instead of at the bearing surface due to its vibration dampening characteristics. In general, the resilience of ND Patch holds the fastener in place without adhesives or thread distortion. Due to its resilience, Patch can be repeatedly adjusted and reused.
ND Patch and ND Patch 360° Ring are normally positioned one to three threads back from the end of the fastener to assure ease of starting. The normal coating length of the Patch is four to six threads. Special Patch location and coating length can be specified for specific applications.
As with all of our preapplied products, ND Industries can apply Patch to your fasteners at any one of our regional service centers, or we can supply you with fasteners already coated with ND Patch.

Specifications:
Primary usage Lock and Seal
Reusability 15 Cycles
Material Nylon 11 (Nylon Patch)
Color Yellow (other colors available)
Hardness Shore D (ASTM D2240) 70-80 Durometer
Salt Spray Resistance (ASTM B117) 1000+ hours (X scribe)
Taber Abrasion (ASTM D4060) 10-18 mg loss CS-10 wheel, 1000 g load, 1000 cycles. (varies with color)
Dielectric Strength (ASTM D149 short time) 800-1200 volts/mil 10.0 mils (varies with color)
Direct Impact Resistance (MPTM 0002) 160 in. lbs. (10.0 mils)
Temperature Resistance -70 to 250
Shelf Life Indefinite under ideal storage conditions [+40°F (+4°C) to +90°F (+32°C)], but recertification must occur once a year.

Features:
Saves Time: Fasteners coated with ND Patch can be automatically fed through standard feeding devices.
Improved Sealing: ND Patch 360° Ring provides excellent locking performance as well as increased sealing ability by completely filling the thread helix with an elastic 360° nylon dam.
Retains Full Strength: ND Patch process involves no drilling or milling, so there is no loss of the fasteners strength or hardness and no troublesome burrs or chips.
Saves Money: Use of ND Patch eliminates the need for costly lock washers, cotter pins, or castellated nuts. You get a close fit without the costs involved in obtaining close tolerances. Moreover, ND Patch is less expensive than applying bottled thread locking compounds at the point of assembly.
Resists Heat & Cold: ND Patch meets and exceeds IFI Specifications 124 & 524 as well as Military specification MIL-DTL-18240F, Type P, for temperatures from -70°F (-56°C) to +250°F (121°C).
Chemical Resistant: ND Patch will not dry, shrink, or lose resiliency when exposed to commercial solvents, alcohol, gasoline, oil, caustic soda, jet fuel, etc.
Reusable: Fasteners coated with ND Patch can be reused repeatedly without damage to threads. ND Patch is particularly resistant to deformation, which makes it ideal for repeated use.
Saves Effort: ND Patch greatly reduces the need for retightening.
ND Patch meets or exceeds the performance requirements of the following specifications and/or standards:

MILITARY
• U.S. Military: MIL-N-25027, MIL-F-18240E, MIL-DTL-18240F

AUTOMOTIVE
• Chrysler: PF-5144, PF-6157, PF-6158
• Ford: ES-382101-S100, ES-378813-S100, ES-N800688-S100, WA970, ES-21002-S100
• General Motors: GM 6189P

INDUSTRIAL
• DIN: 267 Part 28
• IFI: 124
• IFI: 524
• IFI: 100

OEM
• John Deere: JDT905
• Mack Trucks: 3/6 AXS5, 10 AMS1
• Bendix: WI-287, UI-146
• Meritor (Rockwell): Q-70
• Case IH: BM-050
• Clark Equipment: 95G-96G, 81D-82D
• Detroit Diesel: 9S240
• Eaton: 205372
• Kelsey - Hayes: B-3736
• Navistar: Noun Code 0810
• New Process Gear: PS-616
• Outboard Marine: 1767

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