Hex Capscrew Grade 5 3/8in-16 X 3 3/4in

Enhance your heavy equipment’s performance with the Case Construction Hex Capscrew – Grade 5. Measuring 3/8in-16 x 3 3/4in, this durable fastener ensures reliable strength and stability for your machinery. Perfect for demanding construction environments.

Compatible equipment

This part fits BACKHOE, CASE ENGINE, CASE CRAWLER EXCAVATOR, CASE CRUZ-AIR WHEELED EXCAVATOR, CASE CRAWLER TRACTOR, CASE LOGGER CRAWLER EXCAVATOR, DROTT CRAWLER EXCAVATOR, CASE UNI-LOADER SKID STEER LOADER, LOADER AND BACKHOE, LOADER, CASE/BELOIT SKID KING WHEEL LOADER, DROTT SERIES-A CRAWLER EXCAVATOR, BACKHOE AND LOADER FOR 530CK TRACTORS, BACKHOE FOR W7, W9A, W9B, W10, CASE WHEEL TRACTOR, BACKHOE AND LOADER, BACKHOE FOR 310G AND 450 CRAWLER, BACKHOE FOR 580CK, BACKHOE FOR W SERIES RIGID LOADERS, BACKHOE FOR CRAWLER MODELS 750, 850, 1150, BACKHOE FOR 680CK TRACTOR, BACKHOES FOR CRAWLER MODELS 750, 850, 1150, SERIES A INTERNATIONAL LOADER TRACTOR, BACKHOE FOR 450, 450B, 850, 850B, AND W14, CASE LOADER BACKHOE ATTACHMENTS, LOADER AND BACKHOE FOR 580CK SERIES B, CASE TRENCHER, DROTT SERIES-B FELLER/BUNCHER CRAWLER EXCAVATOR, DROTT SERIES-B CRAWLER EXCAVATOR, INTERNATIONAL HARVESTER COMPACT LOADER, CASE CONSTRUCTION KING WHEEL TRACTOR, CASE LONG TRACK CRAWLER TRACTOR, CASE WHEEL TRACTOR W/LOADER BACKHOE, CASE CONSTRUCTION KING LOADER BACKHOE, CASE LOAD KING WHEEL LOADER, IND - CASE CRAWLER TRACTOR, CASE CONSTRUCTION KING FORKLIFT, CASE CONSTRUCTION KING TRACTOR W/SHUTTLE TRANSMISSION, CASE CONSTRUCTION KING WHEEL TRACTOR W/HYDROSTATIC TRANSMISSION, CASE CONSTRUCTION KING LOADER BACKHOE - 4WD SUPPLEMENT, CASE CONSTRUCTION KING LOADER BACKHOE - TURBO SUPPLEMENT, CASE SUPER-D CONSTRUCTION KING LOADER BACKHOE, CASE SUPER-E CONSTRUCTION KING LOADER BACKHOE, CASE SKID KING WHEEL LOADER, CASE TERRATRAC GASOLINE CRAWLER TRACTOR, MOTOR GRADER - ASN 020001, MOTOR GRADER TIER 2- BTW 020101-020187, MOTOR GRADER - ASN 022001, MOTOR GRADER TIER 2 - ASN 022101, MOTOR GRADER - ASN N5AF04007, MOTOR GRADER - ASN 024001, MOTOR GRADER TIER 2 - BTW 024102-024129, CASE FORKLIFT, SKID STEER LOADER - S5 NA, SKID STEER LOADER - TIER 4F - NA, COMPACT TRACK LOADER, CASE UNIT LOADER, CASE WHEEL LOADER, CASE WHEEL LOADER W/POD CAB - NEW YORK STATE SPECIAL, CASE ARTICULATED WHEEL LOADER including models 31, 504BD, 1080, 1080B, 1085B, 1085C, 1086B, 1150B, 1150D, 1150E, 1150G, 1150H, 1155D, 1155E, 1187, 1187B, 120, 1450, 1450B, 1455B, 1550, 1816, 1816C, 1818, 1835.

Frequently asked questions

What is the part number?

The manufacturer part number is 86505979.

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.