Introducing the Rotary 50438 10mm x 37. 5mm Cover Washer - a must-have for any DIY enthusiast or professional mechanic. This high-quality washer is perfect for securing and protecting various equipment and machinery. The Rotary 50438 is designed to withstand heavy use, ensuring longevity and durability. Say goodbye to weak and flimsy washers - the Rotary 50438 is built to last. Trust the trusted brand, Rotary, to provide you with top-notch products like the 50438. Upgrade your equipment with the Rotary 50438 and experience unmatched performance. Don't settle for less, choose the Rotary 50438 for all your washer needs.