The DIN127 B4 YAY.PUL (YAY.RON.) DIN 127 B4 The DIN127 B4 from STD is a reliable YAY.PUL (YAY.RON.) DIN 127 B4, tailored for versatile applications. Crafted with a size of M4, height of nan, and an outer diameter of nan, it ensures precision and reliability. Made from nan material and available in nan color, it offers both durability and aesthetic value. Packaged in BULK and compliant with nan standards, the DIN127 B4 is a dependable solution for professionals seeking top-notch quality.