Publicado Por En julio 26, 2026 SPOKE NIPPLE SAPIM POLYAX BRASS OEM 2.0x13mm DOUBLE SQUARE HEAD BK SECURE LOCK (16mm over all length)Bulk Sapim nipples in a variety of styles - see type column for part specifications. Standard Polyax - The round shape of the head of the polyax nipples work like a ball-joint between the rim and the nipple ensuring a better spoke/nipple line. Secure Lock - Locking mechanism that prevents nipples from untightening during wheel truing, machine compatible. Double Square - Allows the use of internal or external spoke wrenches - wrench flats above and below the rim interface rather than standard slotted spoke nipples. Hex Square - Hexagonal head allows truing from the head side for hard to service spokes, and can resist higher torque without damage to the flats. Standard - OEM style, basic SHIPS TODAY! Order before 1:30PM EST, M - F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us