1/2" ID x 17 mm OD Top Hat Spanner Bushing SKU# 351100 $4.30 QTY Add to Cart Volume discounts are available for bulk or frequent orders. Contact Us. Jump to Full Product Specification Lead Time to Ship, Shipping & Returns Lead Time to Ship: Ship Weight: 0.1 lbs 30 Day Returns Returned product is subject to a 30% restocking fee.