zDwfDc 76PCS M6 Barrel Nuts M6 x 10mm/11mm/12mm/13mm/15mm/20mm Black Metric C…
The hole size is 6 mm, which is only suitable for M6 furniture bed bolts. MATERIAL：Barrel nuts made of carbon steel, galvanized surface, strong, effectively prolong product life. — If the item cannot use or you received your item not as expected.