VWR® 11 mm Crimp Top Vials, Kits, Caps, and Inserts, Wide Opening. Supplier: VWR International. Description: 11 mm crimp top, wide neck opening design, allows easy filling, requires inserts with a diameter of 6 mm. New Product. ,46610-742APK,46610-742ACS,46610-740ACS,46610-740APK,66010-539ACS,66010-539APK.