Product Information Specifications Outside Diameter Inch/mm: 7/16"/11.11mm Inside diameter: 1/4"/6.52mm Length Inch/mm: Varies Wall Thickness Inch/mm: 3/32"/2.38mm Fits Metric Bolt M6 Fits Imperial Bolt 1/4" Tolerance OD/ID Inch/mm +/-.005", +/-.15mm Tolerance Length Inch/mm +/-.007", +/-.2mm Aluminum Spacer 7/16" OD X 1/4" ID This Diagram shows the measuring system we use on our products. We use the same system on all spacers store wide. Please be sure to select the correct length you are looking for. MetalSpacersOnline also carries black anodized spacers MetalSpacersOnline also carries aluminum tubing MetalSpacersOnline also carreis mild steel spacers MetalSpacersOnline also carries assortment kits MetalSpacersOnline also carries flange nuts Buying Options Buying Options Buying Options Add to Cart Buying Options Customer Reviews 4.5 out of 5 stars 34 4.7 out of 5 stars 4 4.9 out of 5 stars 26 5.0 out of 5 stars 2 4.5 out of 5 stars 17 Price — no data — no data — no data $99.00$99.00 — no data Similar Products ✓ ✓ ✓ ✓ no data