Nut Locknut .375 Unc Gr C Yzd

Enhance your heavy equipment’s performance with the Case Construction Nut Locknut .375 UNC Gr C YZD #232-1446. Designed for durability and reliability, this essential component ensures secure fastening, making it perfect for demanding construction environments.

Compatible equipment

This part fits SERIES - CASE ROW CROP CULTIVATOR, SERIES - ECONOMY PLOWS, CONCORD AIR SYSTEM, CASE COMBINE, CASE AGRI-KING TRACTOR (S/N 8675001 & AFTER), CASE CRAWLER EXCAVATOR, CASE CRUZ-AIR WHEELED EXCAVATOR, FRAME ASSEMBLY CONVERT TO 2-BOTTOM PLOW, CASE TORQUE CONVERTER CRAWLER TRACTOR (BEFORE S/N 7109000), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7109000 TO 7110299), CASE TORQUE CONVERTER CRAWLER TRACTOR (S/N 7110300 & AFTER), CASE CRAWLER TRACTOR, CASE CRAWLER TRACTOR (NORTH AMERICA), CASE AGRI-KING DIESEL TRACTOR, CASE LOGGER CRAWLER EXCAVATOR, CASE FELLER/BUNCHER CRAWLER EXCAVATOR, TRACTOR - HIGHWAY SUPPLEMENT, CASE DIESEL TRACTOR, CASE TRACTION KING TRACTOR (AFTER S/N 9806101), CASE TRACTION KING TRACTOR (BEFORE S/N 9806101), DAVID BROWN SELECTAMATIC TRACTOR (S/N 700001 & UP), DAVID BROWN DIESEL TRACTOR (S/N 11150001 & AFTER), DAVID BROWN SELECTAMATIC DIESEL TRACTOR, CASE AGRI-KING TRACTOR (PRIOR TO S/N 8736001), CASE AGRI-KING TRACTOR (S/N 8736001 & AFTER), CASE AGRI-KING TRACTOR (PRIOR TO S/N 8727601), CASE AGRI-KING TRACTOR (S/N 8727601 & AFTER), TRACTOR - VEGETABLE SPECIAL EQUIPMENT, 169 - HAY BALER W/ENGINE & KNOTTER, 170 - HAY BALER W/PTO & KNOTTER, 171 - HAY BALER W/ENGINE & WIRE TWISTER, 172 - HAY BALER W/PTO & WIRE TWISTER, 192 - FORD 150 PTO HAY BALER, 270 - FORD 150 PTO HAY BALER W/TWINE KNOTTER, 337 - 530 SERIES BALER - TWINE TIE W/ENGINE & ELECTRIC STARTER, 338 - 530 SERIES BALER - WIRE TIE W/ENGINE & ELECTRIC STARTER, 71 - HAY BALER - KNOTTER W/ELECTRIC STARTER, 80 - PTO HAY BALER W/KNOTTER, DAVID BROWN DIESEL TRACTOR, TRACTOR - ORCHARD & GROVE / ROWCROP EQUIPMENT, CASE TRACTION KING DIESEL TRACTOR, FORD HAY BALER, SERIES - CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER, CASE UNI-LOADER SKID STEER LOADER W/DEUTZ ENGINE, SERIES-B CASE UNI-LOADER SKID STEER LOADER (S/N 9816704 THRU 9825291), CASE AGRI-KING TRACTOR (''''SPIRIT OF ''76'''' OPTION), CASE UNI-LOADER SKID STEER LOADER (AFTER S/N JAF0069386), CASE UNI-LOADER SKID STEER LOADER (UP TO S/N JAF0069586), CASE UNI-LOADER SKID STEER LOADER (NORTH AMERICA), CASE DIESEL TRACTOR (PRIOR TO S/N 17895000), CASE DIESEL TRACTOR (S/N 17895000 THRU 002 & UP), 131 - 712 SERIES IND LOADER - IND TRACTOR, 132 - BUCKET TREAD WIDTH 5/8 YD., 133 - BUCKET TREAD WIDTH 3/4 YD. - 740 SERIES, 134 - BUCKET TREAD WIDTH 1 YD., 135 - MANURE FORK BUCKET W/7 TINES, 153 - FORD 713 SERIES 10'' BASIC BACKHOE, 154 - FORD 713 SERIES 12'' BASIC BACKHOE, 155 - FORD 713 SERIES 14'' BASIC BACKHOE, 181 - 712 SERIES LOADER SUPER DUTY IND, 299 - FORD 723 SERIES 10'' BASIC BACKHOE, 300 - FORD 723 SERIES 12'' BASIC BACKHOE, 301 - FORD 723 SERIES 14'' BASIC BACKHOE, 332 - 712 SERIES FRAME A FORD IND LOADER, 337 - FRAME ASSY. LOADER 2000LB W/D.A. LIFT CYLINDER - 724 SERIES, 377 - FRAME ASSY. EXTRA-H.D. LOADER W/D.A. CYLINDER - 725 SERIES, 393 - KIT ATTACHING SERIES 740, 421 - LIFT ARM ASSEMBLY SERIES 740, 422 - FRAME ASSEMBLY W/FLOAT (4400) SERIES 735, 423 - FRAME ASSEMBLY W/FLOAT (3500) SERIES 735, 424 - FRAME ASSEMBLY W/FLOAT (PRIOR 2 & 4000 IND.) SERIES 735, 425 - FRAME ASSEMBLY STD. (3400 & PRIOR 2 & 4000) SERIES 730, 426 - FRAME ASSEMBLY W/FLOAT (3400 & PRIOR 2 & 4000) SERIES 730, 427 - FRAME ASSEMBLY S.A. LIFT CYLINDER SERIES 730, 428 - KIT ATTACHING & HYDRAULIC (PRIOR 2 & 4000) SERIES 730, 429 - KIT ATTACHING & HYDRAULIC (3400 IND.) SERIES 730, 430 - KIT ATTACHING & HYDRAULIC (PRIOR 2 & 4000 IND.) SERIES 730 735, 433 - BUCKET H.D. MATERIAL 7/8 YD. (U.S. ONLY), 434 - BUCKET H.D. MATERIAL 1 YD. (U.S. ONLY), 435 - BUCKET LIGHT MATERIAL 1-1/8 YD. (U.S. ONLY), 436 - KIT COUNTERWEIGHT BOX SERIES 740, 437 - KIT PIN ADAPTER (ATTACHMENTS TO 740 SERIES LOADERS), 442 - KIT PIN ADAPTER (740 ATTACHMENTS TO OTHER SERIES LOADERS), 449 - 727 SERIES FARM LOADER BASIC, 450 - LIFT ARM ASSEMBLY SERIES 740, 451 - FRAME ASSEMBLY W/FLOAT SELF-LEVELING (3500) 735 SERIES, 452 - FRAME ASSEMBLY W/FLOAT SELF-LEVELING (4400) 735 SERIES, 453 - FRAME ASSEMBLY W/SELF-LEVELING (3400) 730 SERIES, 490 - DIVERTER VALVE KIT 740 SERIES, 491 - DIVERTER VALVE KIT 730/735 SERIES, 496 - FRAME ASSY. W/FLOAT SELF LEVELING & DIVERTER VALVE (3500) 735, 497 - FRAME ASSY. W/FLOAT SELF LEVELING & DIVERTER VALVE (4400) 735, 498 - FRAME ASSY. W/FLOAT SELF LEVELING & DIVERTER VALVE (3400) 730, 499 - NON SELF-LEVELING CONTROL VALVE (2 SECTIONS) 740 SERIES, 500 - SELF-LEVELING VALVE & PLUMBING KIT 740 SERIES, 501 - LIFT ARM ASSEMBLY 740 SERIES, 503 - KIT VALVE PLUMBING FOR 19-500 KIT 740 SERIES, 509 - FRAME ASSEMBLY W/FLOAT (4400) 735 SERIES, 510 - FRAME ASSEMBLY W/FLOAT (3500) 735 SERIES, 511 - FRAME ASSEMBLY W/FLOAT (PRIOR 2 & 4000 IND.) 735 SERIES, 512 - FRAME ASSEMBLY (3400) 730 SERIES, 513 - FRAME ASSEMBLY W/FLOAT (3400) 730 SERIES, 514 - FRAME ASSY. W/FLOAT SELF LEVEL. & DIV. VALVE (3500) 735, 515 - FRAME ASSY. W/FLOAT SELF LEVEL. & DIV. VALVE (4400) 735, 516 - FRAME ASSY. W/FLOAT SELF LEVEL. & DIV. VALVE (3400) 730, 517 - KIT ATTACHING & HYD. (PRIOR 2 & 4000 - 68/69) 730 SERIES, 518 - KIT ATTACHING & HYD. (3400 IND. - 68/69) 730 SERIES, 521 - KIT 4-IN-1 DROTT BUCKET ATTACHING & CONTROL VALVE 740 SERIES, 522 - KIT ATTACHING & HYD. (2100 & 3100) 730 SERIES, 524 - BUCKET 4-IN-1 DROTT 3/4 YD. 740 SERIES, 525 - FRAME ASSEMBLY W/FLOAT (515 & 4400) 735 SERIES, 528 - FRAME ASSEMBLY 730 SERIES, 529 - FRAME ASSEMBLY W/FLOAT 730 SERIES, 530 - FRAME ASSEMBLY W/FLOAT SELF LEVEL. & DIV. VALVE 735 SERIES, 531 - FRAME ASSY. W/FLOAT SELF LEVEL. & DIV. VALVE (515 & 4400) 735 SERIES, 532 - FRAME ASSEMBLY W/FLOAT SELF LEVEL. & DIV. VALVE 730 SERIES, 533 - PUMP KIT HYDRAULIC 13.7 GPM (GEAR TYPE PUMP) 730 SERIES, 534 - PUMP KIT HYDRAULIC 19.1 GPM (GEAR TYPE PUMP) 730/735 SERIES, 535 - PUMP KIT HYDRAULIC 21.5 GPM (GEAR TYPE PUMP) 735 SERIES, 536 - DRIVE KIT HYDRAULIC PUMP (515 & 4400) 735 SERIES, 537 - DRIVE KIT HYDRAULIC PUMP (420 & 3500) 735 SERIES, 538 - KIT ATTACHING & HYD. (PRIOR 2 & 4000 IND.) 730/735 SERIES, 539 - KIT ATTACHING & HYD. (PRIOR 2 & 4000 AP) 730 SERIES, 540 - KIT ATTACHING & HYD. (3400 335 IND. 69/) 730 SERIES, 541 - KIT ATTACHING & HYD. (2100 & 3100 AP 69/8-70) 730 SERIES, 547 - FRAME ASSEMBLY W/FLOAT (4400) 735 SERIES, 548 - FRAME ASSEMBLY W/FLOAT SELF LEVEL. & DIV. VALVE (4400) 735 SERIES, 549 - KIT HEAVY DUTY LOADER BUCKET TOOTH 740 SERIES, 607 - BUCKET H.D. MATERIAL 7/8 YD. 740 SERIES (EXCEPT U.S.), 608 - BUCKET H.D. MATERIAL 1 YD. 740 SERIES (EXCEPT U.S.), 611 - BUCKET H.D. MATERIAL 1 YD. 740 SERIES (EXCEPT U.S.), 612 - BUCKET LIGHT MATERIAL 1-1/8 YD. 740 SERIES (EXCEPT U.S.), 638 - LOADER STD. LIFT W/FLOAT (3550 420) 735 SERIES, 639 - LOADER SELF-LEVELING W/FLOAT & DIV. VALVE (3500 & 420) 735 SERIES (U, 640 - LOADER SELF-LEVELING W/FLOAT & DIV. VALVE (3550 & 420) 735 SERIES (N, 707 - KIT ATTACHING (2100 & 3100 W/2 POST ROPS) 730 SERIES, 708 - KIT ATTACHING (4140SU W/2 POST ROPS) 730 SERIES, 854 - 4500 LB LOADER LIFT ARM ASSEMBLY, 863 - 2500 LB LOADER LIFT ARM ASSEMBLY, 929 - 1/2 CU. YD. MATERIAL BUCKET, 955 - 2800 LB LOADER LIFT ARM ASSEMBLY, CASE DIESEL TRACTOR (PRIOR TO S/N 17897500), CASE DIESEL TRACTOR (S/N 17897500 TO 17897505 17897510 & AFTER, PRECISION AIR CART, LOADER AND BACKHOE, CASE IH AXIAL-FLOW COMBINE (NA), CASE IH AXIAL-FLOW COMBINE (NA) BTW HAJ292001&HAJ300000, CASE IH AXIAL-FLOW COMBINE (NA) BSN JJC0276540, CASE IH AXIAL-FLOW COMBINE (NA) BTW HAJ292001 & HAJ300000, CASE TRACTION KING TRACTOR (AFTER S/N 8762940), CASE TRACTION KING TRACTOR (BEFORE S/N 8762940), BACKHOE, CASE TRACTION KING TRACTOR, PRECISION DISK DRILL, BACKHOE AND LOADER FOR 530CK TRACTORS, BACKHOE FOR W7 W9A W9B W10, BACKHOE AND LOADER, BACKHOE FOR 310G AND 450 CRAWLER, BACKHOE FOR 580CK, BACKHOE FOR W SERIES RIGID LOADERS, LOADER, BACKHOE FOR CRAWLER MODELS 750 850 1150, BACKHOE FOR 680CK TRACTOR, BACKHOES FOR CRAWLER MODELS 750 850 1150, 3 CYL UTILITY TRACTOR, CASE LOADER BACKHOE ATTACHMENTS, DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6266131 & AFTER), LOADER AND BACKHOE FOR 580CK SERIES B, DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6270716 & AFTER), DROTT SERIES-E CRAWLER EXCAVATOR (S/N 6271140 & AFTER), DROTT SERIES-B FELLER/BUNCHER CRAWLER EXCAVATOR, DROTT SERIES-A CRAWLER EXCAVATOR, DROTT SERIES-B CRAWLER EXCAVATOR, CASE TRACTOR, CASE IH TRACTOR, CASE CRAWLER TRACTOR (PRIOR TO S/N 3038436), CASE CRAWLER TRACTOR (S/N 3038436 TO 3060306), CASE CRAWLER TRACTOR (S/N 3060306 & AFTER), CASE LONG TRACK CRAWLER TRACTOR, CASE PULL-TYPE COMBINE W/PTO DRIVE, CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169), CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER), CASE CONSTRUCTION KING LOADER BACKHOE, CASE WHEEL TRACTOR W/LOADER BACKHOE, CASE SERIES-E CRAWLER EXCAVATOR (S/N 6280543 & AFTER), DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6279926 & AFTER), SERIES - FORD HAY BALER, CASE CONSTRUCTION KING FORKLIFT, 3 CYL TRACTOR LOADER, SERIES - FORD HEAVY DUTY HAY BALER, CASE CONSTRUCTION KING LOADER BACKHOE AFTER S/N 3739160 (EUROPE), CASE CONSTRUCTION KING LOADER BACKHOE BEFORE S/N 3739160 (EUROPE), LOADER BACKHOE (NORTH AMERICA), LOADER BACKHOE (NORTH AMERICA) (ASN JJG0020000), SERIES 2 LOADER BACKHOE TIER 2 (NA) - ASN N4C303000, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N8C500000, BACKHOE LOADER (LIVERY) - TIER 3 NRC, BACKHOE LOADER (LIVERY) - TIER 4B, BACKHOE LOADER - TIER 3 NRC, BACKHOE LOADER - TIER 4A - FROM PIN NCC560000, BACKHOE LOADER - TIER 4B, BACKHOE LOADER 2WD - TIER 3 NRC - MY18, BACKHOE LOADER 2WD - TIER 3 NRC - MY19, BACKHOE LOADER 2WD - TIER 4B - MY18, BACKHOE LOADER 2WD - TIER 4B - MY19, BACKHOE LOADER 4WD - TIER 3 NRC - MY18, BACKHOE LOADER 4WD - TIER 3 NRC - MY19, BACKHOE LOADER 4WD - TIER 4B - MY18, BACKHOE LOADER 4WD - TIER 4B - MY19, LOADER BACKHOE (TIER 3), LOADER BACKHOE - TIER 3 NRC, CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-E CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-K CONSTRUCTION KING LOADER BACKHOE, SERIES 2 LOADER BACKHOE TIER 2 (NA) - ASN N4C304000, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N8C5040000, SERIES 2 LOADER BACKHOE TIER 2 (NA) - ASN N4C307000, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N8C508000, BACKHOE LOADER - TIER 4A - FROM PIN NCC564000, LOADER BACKHOE - TIER 3, BACKHOE LOADER (LIVERY) - WIDE TRACK - TIER 3 NRC, BACKHOE LOADER (LIVERY) - WIDE TRACK - TIER 4B, BACKHOE LOADER - WIDE TRACK - TIER 4B, BACKHOE LOADER 4WD - WIDE TRACK - TIER 3 NRC - MY18, BACKHOE LOADER 4WD - WIDE TRACK - TIER 3 NRC - MY19, BACKHOE LOADER 4WD - WIDE TRACK - TIER 4B - MY18, BACKHOE LOADER 4WD - WIDE TRACK - TIER 4B - MY19, BACKHOE LOADER WIDE TRACK - TIER 3, BACKHOE LOADER WIDE TRACK - TIER 3 NRC, BACKHOE LOADER WIDE TRACK - TIER 4A, TURBO LOADER BACKHOE, SERIES 2 LOADER BACKHOE TIER 2 (NA) - ASN N4C309000, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N8C508500, SERIES 3 LOADER BACKHOE TIER 3 (NA) - ASN N7C431854, BACKHOE LOADER - TIER 4A, CASE SKID KING WHEEL LOADER, CASE ROTARY FIELD CUTTER, CASE TURBO HORIZONTAL DIRECTIONAL DRILLING MACHINE, SERIES - FORD SELF PROPELLED COMBINE, CRAWLER DOZER TIER 3 (HYDRO), CASE CONSTRUCTION KING LOADER BACKHOE (S/N 9101501 TO 9102281), CASE CONSTRUCTION KING LOADER BACKHOE (UP TO S/N 9101501), CASE SERIES-B CONSTRUCTION KING LOADER BACKHOE (S/N 9102282 TO 9103968, CASE SERIES-B LOADER BACKHOE (S/N 9103967 TO 9105879), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 910600 TO 9111008), CASE SERIES-C CONSTRUCTION KING LOADER BACKHOE (S/N 9111009 & AFTER), CASE SERIES-2 TELESCOPIC HANDLER, CASE TELESCOPIC HANDLER, CASE TIER-2 TELESCOPIC HANDLER, SERIES - FORD LOADER, SERIES - FORD BACKHOES, SERIES - FARM LOADER, FORD LOADER, SERIES - INDUSTRIAL LOADER, CASE CRAWLER TRACTOR (BEFORE S/N 7070351), DAVID BROWN SELECTAMATIC LIVEDRIVE DIESEL TRACTOR, SERIES - 6 CYL TRACTOR, 6 CYL AG TRACTOR ROW CROP, 6 CYL AG TRACTOR INDUSTRIAL, CASE CRAWLER TRACTOR (EUROPE), CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA), CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA), DAVID BROWN IMPLEMATIC LIVEDRIVE TRACTOR, DAVID BROWN IMPLEMATIC NARROW LIVEDRIVE TRACTOR, DAVID BROWN IMPLEMATIC TRACTOR, 6 CYL AG TRACTOR, 6 CYL AG TRACTOR FLAT DECK, DAVID BROWN IMPLEMATIC NARROW TRACTOR, DAVID BROWN SELECTAMATIC TRACTOR (S/N 530001 TO 563379), DAVID BROWN LIVEDRIVE DIESEL TRACTOR, DAVID BROWN DIESEL TRACTOR W/Q CAB (S/N 11000001 TO 11021851), DAVID BROWN SELECTAMATIC TRACTOR, SERIES - CASE COMFORT KING TRACTOR (ASN 8258382), DAVID BROWN IMPLEMATIC LIVEDRIVE TRACTOR (S/N 9503A400001 & ON), FRAME & HITCH ASSEMBLY SINGLE BOTTOM PLOW, 12'''' BOTTOM FRONT, 12'''' BOTTOM REAR, 14'''' BOTTOM FRONT, 14'''' BOTTOM REAR, 16'''' BOTTOM REAR, 15'''' SINGLE COULTER ASSEMBLY W/CLAMP, 15'''' COULTER ASSEMBLY W/CLAMP (SET OF 2), GAUGE WHEEL, CASE CRAWLER EXCAVATOR (S/N 6203751 & AFTER), DAVID BROWN SELECTAMATIC TRACTOR (S/N 11070001 & AFTER), ENGINE FOR 900 DAVID BROWN SELECTAMATIC TRACTOR (S/N 482001 TO 800000), AIR DELIVERY SYSTEM, 10 INCH AND 12 INCH AIR TILL DRILL, BIG RECTANGULAR BALER, FORD 6 CYL TURBO ENGINE, 10'''' AIR TILL DRILL, 12'''' AIR TILL DRILL, AIR DOUBLE DISK DRILL, NARROW TRANSPORT, CASE TRENCHER W/1.8L DIESEL ENGINE, CASE TRENCHER W/2.1L ENGINE, CASE TRENCHER, SERIES - CASE FIELD CULTIVATORS, CRAWLER DOZER, MOTOR GRADER, CASE TRENCHER W/LOADER BACKHOE, MOTOR GRADER S/N 98L00120 & AFTER, CASE PLANTER, CASE IH AIR TILL DRILL, SINGLE DISK NO-TILL AIR DRILL, CASE UNIT LOADER, CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9119672) (NORTH AMERICA) including models 100, 1002, 1010, 1060, 1070, 1080, 1080B, 1085B, 1085C, 1086B, 10PT0015, 1100, 1124, 1150, 1150B, 1150C, 1150D, 1150E, 1150G, 1150H, 1155D, 1155E, 1170, 1175, 1187.

Frequently asked questions

What is the part number?

The manufacturer part number is 232-1446.

Is this a genuine OEM part?

Yes. Southeastern Equipment stocks OEM and quality aftermarket parts for heavy equipment. Contact us if you need a specific OEM source or aftermarket option.

Will this fit my machine?

See the compatible equipment list above. If your model is not listed, call us with your machine's serial number and we can confirm.

Where does this ship from?

Southeastern Equipment Company ships parts nationwide from our US warehouse. Orders placed before 2 PM ET typically ship same day.

Free pickup at any of our 17 branches across Ohio, Indiana, Michigan, and Kentucky. Select your preferred branch at checkout.

30-day no-fault returns. Bought the wrong part? Send it back for a full refund — no restocking fees, no minimums.