National Scientific Target 10-425 Screw-Thread Vials National Scientific Caps. Combining top-notch and uncompromising quality with an affordable price the Thermo Scientific target 10-425 Screw-Thread Vials Thermo Scientific Caps - C4010-99/ 66064-162 can fulfill your laboratory needs while still offering a great value for the money. Vials feature a 40percent larger opening than standard vials and a uniformly flat bottom for security with inserts. Made from Type I Class A borosilicate glass. target I-D vials have a ceramic write-on ID patch with graduations at 0.5 1.0 and 1.5mL. Silanized vials help to limit protein adsorption. Inserts are designed for wide-opening 2mL vials. Conical-style Polyspring inserts are available in borosilicate glass or polypropylene. Flat-bottom MicroSerts inserts are made from borosilicate glass. Convenience kits include vials and caps with pre-inserted septa. Preassembled kits have vials with preattached caps and septa. Certified vial kits are tested and certified to meet or exceed up to 17 critical performance parameters; certificate enclosed with kit. National Scientific Target 10-425 Screw-Thread Vials National Scientific C4010-99 Caps