8T-4131: M20 x 2.5mm Hex Nut

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8T-4131: M20 x 2.5mm Hex Nut

Cat® M20 Steel Hexagonal Full Nut

Brand: Cat

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8T-4131: M20 x 2.5mm Hex Nut

Cat® M20 Steel Hexagonal Full Nut

Brand: Cat

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Frequently bought together

8T-4131

3K-0360

3J-1907

View All Parts

Frequently bought together

8T-4131: M20 x 2.5mm Hex Nut

3K-0360: 2.21 x 16.36mm 90A NBR O-Ring

3J-1907: 1.98 x 11.89mm 90A NBR O-Ring

217-3655: 50mm Long Formed Steel Retainer

6V-9746: 1.78 x 18.94mm 90A NBR O-Ring

6V-8397: 1.78 x 9.27mm 90A NBR O-Ring

Diagram

Description

Specifications

Compatible Models

Parts diagram for 8T-4131

Specifications for part number 8T-4131

Units of Measure

Metric

Thickness (mm):

18.0

Thread Size (dia x pitch) (mm):

M20x2.5

Thickness (in):

0.709

Height (mm):

18.0

Nut Type:

Hex

Drive (mm):

30.0

Material:

Steel,Carbon Steel,Alloy Zinc

Material Description:

ISO 898-2 Class 12 hardness

Coating:

Zinc Flake

Hand of Thread:

Thread Size (in):

Nut Width - 3 (mm):

30.0

Thread Size (mm):

M20

Class or Grade:

Iso 898-2 Class 12

Hardened:

Yes

Thread:

Coarse Thread UNC

Hole Thread Pitch:

2.5

Finish Notes:

Caterpillar is changing from Zinc Plating to a Zinc Flake finish for many hex nuts. Until stock of the current plating is depleted, you may receive either Zinc Plating or Zinc Flake due to the exhaust process.

Finish:

Zinc Flake

Drive (in):

1.181

Compatible Models for part number 8T-4131

INTEGRATED TOOLCARRIER

IT12B IT14F IT14G IT14B IT62G IT62H IT14G2 IT24F IT28G IT28F IT62G II IT18F IT38H IT38G IT38F

WHEEL HARVESTER

550B 580B 550 570 580 570B 560B

MULTI PROCESSOR JAWS

VT60 VT50 VT40 VT30

ROTARY DRILL

MD6310 MD6250 MD6200 MD6380

MINI HYD EXCAVATOR

301.7D CR 302.2D 302.4D 302.7D 308E2 304E2 304CR 305.5 301.8 301.9 301.6 301.5 304SR 303E CR 301.7D 301.8C 301.7CR 305E2 304.5E2 308E CR 308E SR 307.5 307-A 302CR 308E2 SR 305.5E2 307D 307C 307B 307E 308E2CR 308E 308D 308C 308E2 CR 307E2 308E2SR 308.5 308 306 307 310 303.5E2 302.7CR

TRACK FELLER BUNCHER

1190 2491 541 2 2590 TK711 511 522 521 1190T 521B 532 522B 541 551 552 2290 1390 TK732 TK1051 TK722 552 2 TK721 TK752 TK751 TK741 1290T 2390 2391 1090

EXCAVATOR

330 L 349D L 320-A L 320-A S 320-A N 324D 324E 325-A 320D2 320D3 336D2 L 323F 323D 312-A 322C 324E LN 321C 548 325D L 330 LN 558 330C FM 538 325B 325C 325D 336E H 329D LN M325D MH 324E L 312E L 330 GC 320D RR 345D L 320N 320B 320C 320D 320E 314E LCR 323F L 365C 365B 349F LXE 320D LN 312F GC 325 LN 320D FM RR 336D LN 349 GC 320E L 325D FM 320D GC 323D2 L 330C L 320D FM 312D2 GC 313 GX 313 GC 349D2 L 329D 329E 330-A 330C LN 325D MH 313F LGC 320D2 L 329D2 330C MH 345C MH 326F LN 336D 336F 314D CR 335F 336F XE 325C L 330B LN 311-A 320D LRR 326F L 336D L 312D2 L 350-A L 324D L 320E RR 312D L 322B L 324D FM LL 323F LN 345C L 323D3 323D2 315-A 323E L 336F LN 320E LN 330F 315B FM L 330B 330C 330D 320 L 365B L M325D L MH 316 GC 336D2 LXE 323F SA MH3295 316 GX 340D2 L 320D L 325C FM 340F L UHD 330B L 325 L 307-A 330F LN 322-A L 325-A LN 336 GC 328D LCR 340F L LRE 325F LCR 320-A 340D L 330F L 329F L 335F LCR 312 GX 312 GC 385C L MH 315F LCR 329D2 L M312 M315 M318 M320 345B II 325B L M315F 375-A L M317F M318F 385C FS 345B 345C 345D 307 349F L 385C L 315 313 336F L XE 312C L 323E LN 314E CR 349D 350 L 349F 340F 345B L 330-A L 314D LCR 336F LN XE 323D S 323D L 326D2 L 385B 385C 365C L 323E SA 345B II MH 336D2 L XE 320C L 325D FM LL 390D 336E LNH 350-A 315 GC 325B LN 349D2 336D2 568 FM 320B LL 313D2 LGP 352 UHD 340 349 324D FM 352 350 355 320 326 324 325 329E L 319 330 336 333 330-A LN 365B II 324D LN 311D LRR 312E FM538 312F 312B 312C 312D 322B LN 326D L FM548 311B 311C 330D2 323D LN 330D FM 312B L 320D2 GC 320D2 FM 330-A L 365C L MH FM558 314C FM568 330GC 313D 312D2 352F 320E LRR 336F L 325-A L 323D SA 322 L 330D2 L 314F CR 336F LNXE 329E LN 320B FM LL 320B S 320B N 320B L 336E LH 325-A FM L 313D2 GC 390D L 326D2 320F L 313D2-GC 313D2 326GC 330D L 330D MH 329D L 330D LN 320C FM 319C 568 FM LL 318C 345D L VG 311F LRR 336D2 XE 315B L 321D LCR 375-A 316E L 322C FM

SHOVEL

6040

PAVING COMPACTOR

C13 MARINE CB2.7 CB2.5 MG630 CC2.7

HYDRAULIC LIFT

MIS MISC

ROTARY MIXER

RM800 RM500B

MULTI PROCESSOR

MP324 MP318 MP40 MP20 MP30 MP15 VT50 VT60 VT30 VT40

WORK TOOL

550 MISC SCARIFIER

PETROLEUM TRANSMISSION

TH31-E61

PETROLEUM ENGINE

C175-16

SOIL COMPACTOR

CP68B CS76B CS74B CS12 GC CS78B CP56B CS64B CP7 CP5 CS5 825H 825G 825K CP11 CP12 CP13 CP14 CP16 CP17 CS68B CS66B CS11 GC 825 CP44B CP12 GC CS20 CS10 CS11 CS12 CS13 CS14 CS16 CS17 CS19 CS56B CS10 GC CS54B CP13 GC CP74B CS13 GC CS44B 825G II

DEMOLITION AND SORTING

G306 G308

BACKHOE LOADER

420F2 450E 450F 420XE 414E 416F2 416E 416F 416C 416D 416B 434F2 432F2 426B 426C 428F2 424D 424B 422F 422E 424B2 420D 420E 415F2 420F 426 F2 428F 428D 428E 428B 428C 430D 430E 430F 427F2 438C 438D 438B 424B HD 415 416 426 428 436C 424 420 436B 434E 434F 432E 432F 432D 438 434 436 430 432 444 446 440 450 430F2 442D 442E 446D 446B 444F 444E 444F2 422F2

PETROLEUM GEN SET

C27 C15

WHEEL LOADER

988 XE 986H 986K 980XE 988G 988H 988K 950GC 907K 972 XE 928HZ 906K 906M 908K 908M 980 XE 924GZ 924HZ 972M XE 938G II 993K 972XE 994F 994D 994H 988GC 950G 950H 950K 950M 950L 918F 966XE 980GC 966F II 962M Z 950M Z 966M XE 982XE 960F 966 XE 962H 962G 962L 962K 962M 966F 966H 966L 966K 966M 924F 924H 924G 924K 928F 926M 962 928H 928G 966 972 966 GC 986 980 982 950G II 988 994 992 980G II 988K XE 926 924 930 938 950 982 XE 908 907 906 950 GC 970F 972H 972K 972M 972L 930G 930H 930K 930M 936F 962G II 938G 938F 938H 938K 938M 966K XE 980H 980G 980L 980K 980M 982M 950F II

FORWARDER

554 564 584 574 574B 584HD

ARTICULATED TRUCK

D300E II 725 740 745 730 735 725C 730C2 D400E II 725C2 740 GC 730C 735C 735B 735 OEM D250E II D350E II 730 EJECTOR 740C 740B 745C

WHEELED EXCAVATOR

M320F W330B W345C MH M318D M318C M318F M318C MH M315C M315D M316C M316F M316D M313C M313D M315D2 M315GC M320D2 M322D MH M314 M315 M330D M318D MH M323F M322D M322C W345B II M325B

PNEUMATIC COMPACTOR

PS-200B PS-150B PS-300B PS-300C PF-300C PF-300B CW34 PS-360B CW12 PF-290B CW-34

INDUSTRIAL ENGINE

C32 C27 3516B C4.4 C13

WHEEL SCRAPER

637K

QUARRY TRUCK

777E 773E 772G 770G

AUGER

A13

BLADE

SNOW WING

FELLING HEAD

HF222 HF221

SHOVEL LOGGER

345C

POWER MODULE

OEM POWER PMG3516 XQ2280 C32 C18

SITE PREP TRACTOR

586C 2864C

OFF HIGHWAY TRUCK

777G 777E 794 AC 773GC 798 AC 785D 796 AC 789G 789D 772 770 793D 777 775 773 793F 789 785 793 798

GRAPPLE-ORANGE PEEL

GSH22-15 GSH20B GSH22 GSH20 GSH15

MOTOR GRADER

120M 2 140M 3 140M 2 12M 3 AWD 404F-22 24 16 14 18 120M 120K 12M 3 12M 2 163H NA 160M 2 160M 3 16GC 16M3 140K 2 160M 3 AWD 24H 24M 160K 160M 140M 3 AWD 14M-3 120 GC 140M 140K 143H 140 GC 18M3 16M 160 14L 150 14M 140 12M 12K 14M3 120 120K 2

HYDRAULIC SHOVEL

6020 6015 6040 6030 6020B 6060 6015B

MARINE ENGINE

3516C C9

HAMMER

H35E S H45S H50 H45 H63 H65DS 70S H70 H80 H130GC S H80E H130GC H55E S H75E S H35S H180GC H120GC S H160S H55DS H90CS H70S H140GC 100 B20 H200 B35 H45E S H210 H45DS H140GC S H65E S H63S H65S H100S H140 H55S H100 H95E S H195 H165 H155 H185 H175 H35DS H90C 70 63 H120GC B8 B9 B6 B4 B2 B1 H160GC H50S 160

LOG LOADR FORST MACH

558

GRAPPLE-MECHANICAL

VPG-45 VPG-55 G125 G140

EXPANDED MINING PRODUCTS

LD350

FRONT SHOVEL

385C 5080 5090B

PETROLEUM PACKAGE

TH31-E61 CX35-C18I TH31-C9T TH31-C9I CX31-C13I TH35-C11I TH35-C13T TH35-C13I TH35-C15T TH35-C15I

RECLAIMER MIXER

RM400 RM800 RM500B RM-500 RM-350B RM-300

ENGINE

G3520

LOCOMOTIVE ENGINE

C175-20 C32

COLD PLANER

PM620 PM622 PC404 PC406 PM-465 PC45 PC35 PM820 PM825 PM822 PM-565B PM312 PM313 PM310 PC9 PC6 PM-201 PC306 PM-565

ELECTRIC ROPE SHOVEL

7495 HF 7495

GEN SET ENGINE

G3520 POWER SYS G3516C C15 GEN SE

SHEAR

S3090 S3070 S3050 S308 S3

RIPPER

ROTARY/TRACK DRILLS

MD6290 MD6240 MD6420B MD6420C MD6420

SKID STEER LOADER

226B3 226D3 270XE 260 270 236D3 232D3 216B3

INDUSTRIAL LOADER

415F2 IL

WHEEL FELLER BUNCHER

573C 573D 2670C 2670D 553C 2570C 2570D 563C 563D 2470C

STUMP GRINDER

SG18 SG16

GENERATOR

SR5 SR4B XQ330

WHEEL TRACTOR-SCRAPER

627 623 621 637 632 631 613G 627K LRC 623K LRC 631K 637K 623K 621K 627K 657 651

BUCKET

CRUSHER

P325 P315 P335 P360 VHC-40 VHC-50 CR3 CR28 VHC-30 CR35 CR50

SHEAR-MECHANICAL

S128 S115 VPS-35 VPS-45

SPL EXCAVATOR BASED SOLN

OEM-PM

TRACK SKIDDER

527 517

WHEEL SKIDDER

545D 545C 545 555D 535D 535C 535B 525D 525C 525B

ASPHALT COMPACTOR

CB2.7 GC CB2.5 GC CC2.7 GC CB10

UNDERGROUND ARTICULATED TRUCK

AD22

FORESTRY PRODUCTS

FM528 LL 538 548 558 568 FM528

TOWED SCRAPER

TS185 TS180 TS225 TS220

PULVERIZER

VPC-50 VPC-40 VPC-60 P40 P25 P28 P140 P130 P120 P225 P215 P235 VHP-50 VHP-40 VHP-30

WHEEL TRACTOR

623H 621H 627H 631K 621K OEM 637K 651

HEX BASED SPL SOLUTION

320E 330F OEM

TRACK LOADER

939C 973C 973D 973K 963D 963B 963C 963K 953D 953K 963 973 953

WHEEL DOZER

834G 834H 834K 834 824K 824

LANDFILL COMPACTOR

836 826 826G II 826G 826H 826K 836H 836G 836K

TELEHANDLER

RT80 TH337C TL1055D TH336C TH330B TH460B TH103 TL943 TL1255 TH514C TH82 TH83 TH1255 TH560B TH340B TL642 TH210 TH215 TH0842 TH314D TH220B RT100 TH355B TH350B TH360B TL1055 TH407C TH62 TH63 TH406C TH1055 TL943D TH580B TL642D TH0642 TH414C TL1255D TH417D TH417C

COMPACT WHEEL LOADER

920K 906H2 914 910 903 902 901 908 902C2 906 930 920 910G 910F 910E 910K 910M 907H2 903C2 914K 914M 914G 918M 901C 902C 906H 903D 903C 908M 908H2 906M 907H 907M 908H 914G2 901C2

UTILITY COMPACTOR

CB4.4 CB4.0 CB2.5 GC CC2.7 GC CB2.7 CB2.5 CB2.9 CB2.7 GC CC2.6 CC2.7

ASPHALT SCREED

AS2252C AS2302C SE60 VT XW SE60 FM SE47 FM SE60 SE60VT XW AS3251C SE47 V AS3301C

LOGGER

322C

BULLDOZER

8SU 8U 8A

UNDERGROUND ART TRUCK

AD45B AD60 AD55 AD63 AD30 AD45 AD22 AD55B

UNDERCARRIAGE

OEMS

WHEEL SAW

SW360 SW345 SW45 SW60 SW360B SW460B SW460

QUICK COUPLER

S50 PIN GRAB COUPLER

LOAD HAUL DUMP

OTHER R1700 XE R1600G R1600H R1700G R1700

MATERIAL HANDLER

M325D MH M325D L MH

WINCH

57H

ROTARY CUTTER

RC7 RC20

TRACK-TYPE TRACTOR

D10 D11 D8 GC D6R D6T D6M D6N D6K D7E D6N LGP D7R XR D6T LGP D3K2 XL D6T XW D6T XL D5C III D8GC D5R XL D7R D8T D8R D8N D9T D9R D6T XW PAT D6R LGP D7R SERIES D6N OEM D10T D11T D7R LGP D6T LGPPAT D6R STD D6T XL PAT D7R II D5R LGP D6R II D5R2 D6N XL D6 XE D3K2 LGP D6GC D6R XL D4C III D6K XL D6K2 D7E LGP D6R III D6XE 30/30 D9 D1 D6 D5 D8 D7 D5H XL D10T2 D8R II DEUCE

ASPHALT PAVER

AP1055 AP655 PE636 AP600 AP500F AP-1000E AP-1000D AP-1000F BG-2255C AP500 AP555F AP600F BG1055E AP555 BG500E BG555E AP400 AP300F BG-260D AP655F BG1000E AP-500E SE47 BG-2455D BG-2455C AP-555E BG600D AP355F AP455 AP-600D AP655F L AP-655C AP-655D AP355 AP-1055B AP-1055F AP-1055D AP-1055E AP300 BG655D AP1000

MARINE AUXILIARY

3516C

PIPELAYER

561N 561M PL83 PL87 PL72 PL61 583T

MINING EXCAVATOR

5130 5110B 5230 5130B

SHEAR-DEMOLITION/SCRAP

S365 S340 S325 S320 S305 VHS-60 VHS-50 VHS-40 VHS-30 VHS-10 S80 S25 S50 S40 S30

VIBRATORY COMPACTOR

CS-431C CS-68B CP-533D CP-533C CP-533E CS-433E CS-433C CS-66B CP-663E CS-64B CB-534C CB-534B CB-534D CB-535B CB-634 CB-536D CS54B CD-54 CS56B CP-44B CB-34 XW CS-563C CS-563D CS-563E CP44B CS-663E CS-78B CS-531D CS-531C CS-79B CP-433C CP-433E CP12 CS-76B CS-533C CS-533D CP74B CS-533E CS-74B CP-563E CP-563D CP-563C CS512 GC CB-523B CB-525B CP12 GC CC-34 CP-563 CP-54B CS44B CP-56B CP-573E CP76B CS-573C CS-573D CS-573E CB10 CS-44B CS-323C CP-64 CP-54 CP-56 CP-44 CP11 GC CP-34 CC4.0 CS12 CS14 CP-76 CP-74 CS78B CB-64 CB-54 CB-564D CB-434B CB-434D CB-434C CB-434 CB-334E XW CS79B CP-68B CS-583E CS-583C CS-583D CS74B CB-34 CS10 GC CP68B CVP16 CS-56 CS11 GC CS-54 CS-56B CS-44 CS-34 CS-54B CS-563 CVP55 CS-423E CP-323C CVP40 CS-76 CS-74 CVP28 CS-64 CB-54B CB-534 CB-523 CB-525 CB-634C CB-634D CB4.0 CB4.4 CD-54B CB-14B CS7 CB-334E CB-334D CB-335E CB-335D CP7 CS68B CP54B CP-74B CVP75 CVP110 CS-683E CP56B

MOBILE HYD POWER UNIT

330D L 329D L 323D LN 330D2 349D L 329E 330 MHPU 349E L HVG 325D 385C 323F OEM 336F 336D 336E 330F 330D 330C 323D L 330FMHPU 385C L 336D L C7.1 345D 345C 336E HVG 324D LN 349D2 345C L 336FMHPU 340D2 L 325D L

POWER PACKAGE

C32

GENERATOR SET

G3520 G3516 G3512 3508 3412C D1500 XQ1140 C13GENSET DG500 3516 3512 XQ425 G3516B D600 GC G3516H 3508B C4.4 C18 I6 C13 XQ375 3412 C32 GENSET 3456 C18 GEN SET C7.1 3056 3054 XQP1100 C3.3 G3520H 3512C 3512B C32B 3516C 3516B 3516E DE500 XQ230 C18 GEN SE XQ125CM D550GC C9 3516B GEN 3516C GEN SET DE630 G3412 DG400 C32 GEN SET C18 C15 C13 C15 I6 DG450 C9.3 C9 GEN SET C175-16GENSET DG350 C27 XQ330 C32 C15 GEN SE C175-20 C175-16 G3412C 3408C 3406C

FORK

MISC

EJECTOR TRUCK

730C 740B D400E II 730C2 EJ 740 730

FOREST PRODUCTS

OTHER

MULTI PROCESSOR JAW

MP30 MP40 MP15 MP20

WIDE BODY TRUCK

707

ROAD RECLAIMER

RM600 RM500 RM800 RM400 RM500B RM-350B

ENGINE - MACHINE

C27

CHALLENGER

55 35 45 MTC735 MTC745 MTC755 MTC765

SHEAR-STRAIGHT

S465 S440

TRUCK

793F XQ 775G 777D 777G 775G OEM 785 797 770G 795F XQ 772G 773E 773G 772 770 794 AC 772G OEM 795F AC 793F AC MT4400D AC 773G LRC 793F OEM 793D 793B 793C 793F 797F 797B 775G LRC 793F CMD 789D 770G OEM 785G 773G OEM 785C 785D

COMPACTOR

CC-34B CB10 CB-34B XW CB-36B CB-34B CD10 CCS7 CCS9

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Key

Factory Fit

This part is designed to fit your Cat equipment based on the manufacturer’s specifications.

Any changes to the manufacturer’s configuration might result in the product not fitting your Cat equipment. Please consult your Cat Dealer before purchasing to ensure that this part is appropriate for your Cat equipment in its current condition and assumed configuration. This indicator cannot guarantee compatibility for all parts.

Remanufactured

Non-Returnable

Kit

Replaced

Remanufactured

Non-Returnable

Kit

Replaced