Drilled head capstan sealing screws and closure meter screws are supplied in socket head and countersunk socket head forms. Socket head cap screws are listed to GB/T 70.1-2008 / DIN 912 / ISO 4762; countersunk socket head cap screws are listed to GB/T 70.3-2008 / DIN 7991 / ISO 10642. A Class 8.8 option with black oxide finish and hexagon socket drive is mentioned for the hexagon socket head cap variant.

Please confirm required sizes, lengths and finishes when enquiring. The source shows MOQ 100 pcs and indicates OEM/ODM, samples and bulk supply — verify availability, pricing and lead time with your sales contact before ordering.