Screw 32 X 5/16IN

Enhance your heavy equipment performance with the Case Construction Screw – 32 x 5/16in #A20663. Designed for durability and precision, this essential component ensures reliable operation and longevity for your machinery. Perfect for maintenance and repairs.

Compatible equipment

This part fits CASE CRAWLER EXCAVATOR, 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 LOGGER CRAWLER EXCAVATOR, CASE SKID KING WHEEL LOADER, DROTT ENGINES FOR 35 CRAWLER - B SERIES, CASE ENGINE, DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6266131 & AFTER), DROTT SERIES-D CRAWLER EXCAVATOR (S/N 6270716 & AFTER), DROTT SERIES-E CRAWLER EXCAVATOR (S/N 6271140 & AFTER), CASE CABLE LAYER W/301B ENGINE (PRIOR TO S/N 3058169), CASE CABLE LAYER W/336 ENGINE (S/N 3058169 & AFTER), CASE SERIES-E CRAWLER EXCAVATOR (S/N 6280543 & AFTER), 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 CONSTRUCTION KING LOADER BACKHOE, CASE CRAWLER TRACTOR (AFTER S/N 7070351), CASE CRAWLER TRACTOR (BEFORE S/N 7070351), CASE CRAWLER TRACTOR (S/N 7073469 & AFTER) (NORTH AMERICA), CASE CRAWLER TRACTOR (UP TO S/N 7073468) (NORTH AMERICA), CASE CRAWLER EXCAVATOR (S/N 6203751 & AFTER), CASE UNIT LOADER (PRIOR TO S/N 8229367), CASE WHEEL LOADER (S/N 8208732 TO 9808999), CASE WHEEL LOADER (S/N 9809000 TO 9811800), CASE WHEEL LOADER (S/N 9811801 & AFTER), CASE UNIT LOADER, CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9119672) (NORTH AMERICA), CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER) (NORTH AMERICA), CASE UNIT LOADER W/POD CAB (S/N 9119672 & AFTER), CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9119672), CASE ARTICULATED WHEEL LOADER (NORTH AMERICA), CASE WHEEL LOADER (S/N 9123140 & AFTER) (NORTH AMERICA), CASE WHEEL LOADER, CASE WHEEL LOADER (PRIOR TO S/N 9123140), CASE WHEEL LOADER W/POD CAB - NEW YORK STATE SPECIAL, CASE WHEEL LOADER (NORTH AMERICA), CASE ARTICULATED WHEEL LOADER, CASE ARTICULATED WHEEL LOADER (PRIOR TO S/N 9120696), CASE ARTICULATED WHEEL LOADER W/POD CAB (S/N 9120696 & AFTER), CASE WHEEL LOADER (PRIOR TO S/N 17754000), CASE WHEEL LOADER (S/N 9811301 & AFTER) (NORTH AMERICA), CASE WHEEL LOADER (PRIOR TO S/N 8150186), CASE UNIT LOADER (S/N 8160001 TO 8208732) including models 1080, 1080B, 1150, 1150B, 1150C, 1150D, 1155D, 1187, 1187B, 1280, 1280B, 1450, 1450B, 1455B, 300C, 336B, 336DBT, 35, 40, 400C, 475, 50, 504BD, 600, 680CK.

Frequently asked questions

What is the part number?

The manufacturer part number is A20663.

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.

Ships nationwide. In-stock parts ordered before 2:30 PM ET ship the same business day. Your exact shipping cost and delivery estimate are calculated at checkout from your ZIP code and the part’s size and weight; oversized and truck-freight items may need extra transit time and freight charges.

Free branch pickup is also available across Ohio, Indiana, Michigan, and Kentucky — just choose it at checkout.

30-day returns. New, unused parts in original packaging may be returned within 30 days. Some items — including electrical, special-order, and direct-from-supplier parts — are non-returnable. See our full return policy.