Check the listing for details. COVERED TRAILER 13mm BALL STUDS FOR SHOCK MOUNTING. Condition: New. Listed at 7.50 USD. THIS AUCTION IS FOR ONE PAIR OF 13MM BALL STUDS FOR THE SUSPA GAS TRAILER COVER SHOCKSLOCK NUTS ARE INCLUDED, THESE ARE STANDARD 5/16" COURSE THREADIF YOUR UNSURE OF FITMENT, PLEASE E-MAIL US THROUGH EBAY'S "ASK SELLER A QUESTION" CANADA BUYERS PLEASE REMEMBER FIRST CLASS MAIL TAKES UP TO 16 BUSINESS DAYS. THANK YOU THE-PARTCONNECTION SHIPPING AND RETURN POLICIESALL PURCHASED ITEMS ARE SHIPPED OUT WITHIN 24HRS OF PURCHASEWE SHIP OUT EVERY WEEKDAY UNTIL 2:00 P.M. EASTERN STANDARD TIMEALL ITEMS PURCHASED AFTER 2:00 P.M. SHIP OUT THE NEXT BUSINESS DAYNO SATURDAY OR HOLIDAY SHIPPINGTHIS INCLUDES ALL TEN POSTAL HOLIDAYS, OF WHICH SIX ARE MONDAYSIF YOU NEED SOMETHING SHIPPED SOONER, PLEASE CONTACT USCONTACT US THROUGH E-BAY'S "ASK SELLER A QUESTION" ALL ITEMS MAY BE RETURNED WITHIN 30 DAYS OF PURCHASEALL RETURNED ITEMS MUST BE UNUSED, AND IN ORIGINAL PACKAGINGPLEASE E-MAIL FOR A RMA #, AND RETURN INSTRUCTIONSALL REFUNDS ARE MINUS ANY ORIGINAL SHIPPING COSTS OF SELLER, UNLESS ITEM IS DEFECTIVEALL DEFECTIVE ITEM RETURN SHIPPING COSTS ARE PAID BY THE-PARTCONNECTION