Self-Locking Nylon Patch

Self-Locking Bolts

CTP Self-Locking Nylon Patch Fasteners are coated with a precision-applied nylon patch that delivers reliable thread locking and sealing performance in high-vibration applications.

Advantages of using parts coated with self locking
nylon patch:

  • Powerful lock and seal: with the self locking nylon patch, parts
    hold their place even during extreme vibration.
  • Reusable: using steady pressure and standard hand tools, parts
    with self locking nylon patching can be easily adjusted and reused
    as many times as needed.
  • Minimize Stripping: because the self locking nylon patch remains
    a thick, flexible coating, its cold flow properties would truly minimize
    stripping of soft threads during reuse.
  • Shelf Life: All parts coated with the self locking nylon patch can be
    stored indefinitely before use.

BENEFITS

  • Resists vibration loosening
  • Maintains clamp load integrity
  • Locks and seals in one operation
  • No liquid thread locker required
  • Helps prevent thread corrosion
  • Available in multiple sizes and applications

APPLICATIONS

  • Engines
  • Hydraulic systems
  • Drivetrain assemblies
  • Final drives
  • Undercarriage components
  • Frame assemblies

Self-Locking Bolts - Standard

wdt_ID Part No. Size Length Grade Finish Application
1 8T6468 1/2"-13 1" 8 PLAIN 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 12H, 12H ES, 12H NA, 12K, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 14G, 14H, 14H NA, 160G, 160H, 160H ES, 160H NA, 160K
2 5P6851 1/2"-13 1-1/2" 8 PLAIN 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 3304, D10
3 0308538 1/2"-13 1-1/4" 8 PLAIN 120G, 12G, 130G, 14G, 16G, 16H NA, 235, 245, 3408, 3412, 345B L, 350, 3606, 3612, 525, 525B, 572R, 572R II, 578, 583R, 583T, 587R, 587T, 589, 621, 621B, 621E, 621F, 621G, 621H, 621K, 621R, 623, 623B
4 3K4425 1/2"-13 1-1/4" 8 ZINC 950
5 5P4143 1/2"-13 2" 8 PLAIN 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 12G, 14G, 225, 816, 834B, 836, 920, 930, 943, 950, 953, 953C, 955L, 966C, 977L, 983B, D10, D10R, D10T, D10T2, D11N, D11R, D11T
6 8T2861 1/2"-13 2-1/2" 8 PLAIN 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 963, 973, 992C, D4H, D4H XL, D5H, D7H
7 0310215 1/4"-20 .625" 8 ZINC 143H, 163H, 163H NA, 3126, 3126B, 3176B, 3176C, 3196, 3304, 3306, 3306B, 3406, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412D, 3412E, 3456, 3508B, 3512, 3512B, 3512C, 3516B, 3516C, 517, 527, 589
8 8N2662 1/4"-20 1" 12.9 SOCKET HEAD 12G, 140G, 14G, 1673C, 225, 231D, 3208, 3304, 3306, 518, 613B, 613C, 637D, 955L, CS-551, D4D, D4E, D5B, D6D, D7G, PR-1000, PS-500
9 310214 1/4"-20 1/2" 8 PHOSPHATE 916, 926E, 936E, IT28
10 4N2955 1/4"-20 7/8" 12.9 SOCKET HEAD 120G, 12G, 140B, 14G, 1673C, 215, 225, 235, 3160, 3208, 3304, 3304B, 3306, 3306B, 3408B, 3408C, 3412, 3412C, 518, 613B, 627B, 637D, 941, 950, 955L, D4D, D5, D5B, D6C, D6D, D7F, PM3412, SCT673, SPS342

Self-Locking Bolts - Metric

wdt_ID Part No. Size Length Grade Finish Application
1 1271960 M6-1.00 16MM 12.9 SOCKET HEAD 416C, 426C, 428C, 436C, 438C, 515, 525, 525B, 525C, 533, 535B, 535C, 543, 545, 545C, 545D, 555D, 725, 725C, 730, 730C, 735, 735B, 740, 740B, 814F, 814F II, 815F, 815F II, 816F, 816F II, 824G, 824G II
2 3E4315 M8-1.00 14MM 10.9 PLAIN 120M, 120M 2, 12M, 140M, 160M, 938G, 938G II, 938H, 938K, 950F, 950F II, 950G, 950G II, 950H, 950K, 960F, 962G, 962G II, 962H, 962K, C175-16, IT38G, IT38G II, IT38H, IT62G, IT62G II, IT62H
3 6I0572 M8-1.25 20MM 10.9 PLAIN 120M, 120M 2, 12M, 216, 228, 236, 247, 2470C, 248, 2570C, 267, 2670C, 287, 3034, 3054, 3054B, 3054C, 3054E, 3056, 3056E, 307, 312, 312B L, 312C, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D2, 313D2 LG
4 8T5091 M8-1.25 20MM 10.9 PLAIN 1090, 1190, 1190T, 120M 2, 1290T, 12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 160M 2, 160M 3, 160M 3 AWD, 216, 216B, 216B3, 226B, 226B3, 228, 232B, 236, 236B, 242B, 246C, 246D, 247, 247B, 247
5 2264370 M10-1.5 12MM 12.9 SOCKET HEAD 414E, 416D, 416E, 416F, 420D, 420E, 420F, 422E, 422F, 424D, 428D, 428E, 428F, 430D, 430E, 430F, 432D, 432E, 432F, 434E, 434F, 442D, 442E, 444E, 444F, 450E, 450F, CP-533E, CP-54B, CP-56, CP-573E
6 6I0302 M10-1.5 25MM 10.9 ZINC 120M, 12M, 3034, 3054, 3054B, 3056, 307, 312, 312B L, 312C, 315, 315B L, 317, 416B, 416C, 416D, 420D, 424D, 426B, 426C, 428B, 428C, 428D, 430D, 432D, 436C, 438B, 438C, 438D, 442D, 554, 908, 914G
7 1749638 M10-1.5 30MM 10.9 FLANGED 3054, 3054B, 3054C, 3054E, 3056, 312D2, 312D2 GC, 312D2 L, 313D2, 313D2 LGP, 315C, 318D2 L, 414E, 416C, 416D, 416E, 416F, 420D, 420E, 420F, 422E, 422F, 424D, 426C, 428C, 428D, 428E, 428F, 430D, 430E
8 1430811 M12-1.75 35MM 12.9 PLAIN 336D2, 336E H, 336E L, 336E LH, 336F L, D300E II
9 7X3350 M12-1.75 35MM 10.9 PLAIN 140G, 3114, 3116, 3126, 3126B, 3126E, 525B, 525C, 535B, 535C, 545C, 793, 793B, 793C, 797, 797B, 815B, 910E, 918F, 924F, 924G, 924GZ, 924H, 924HZ, 924K, 928F, 928G, 950F, 950F II, 993K, C7, IT12B, IT18
10 2869155 M16-2.00 120MM 10.9 PLAIN 120M, 120M 2, 12M, 12M 2, 12M 3, 12M 3 AWD, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 938H, IT38H

* Other part no. not included in the list are available. Please contact your sales representative if you have any questions. Part Numbers are used for reference purposes only. Komatsu® is the registered trademark of Komatsu Ltd. John Deere® is the registered trademark of John Deere Company.

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