Tapping screw and washer assemblies with plain washers subscription-only BS EN 4652-113 specifies the

BS EN 4652-113 specifies the characteristics of bayonet coupling (BNC interface) coaxial bulkhead receptacle − 50 ohms

ISO 8434-1 discusses tubes that are rigid conductors and hoses that are flexible conductors

The method is not applicable to powders for hardmetals

BS EN 14125 applies to pipework made from thermoplastics

cryogenic valves are kept in a naturally closed condition

Tapping screw and washer assemblies with plain washers subscription-only BS EN 4652-113 specifies the1 Scope This International Standard specifies the requirements for tapping screws and plain washer assemblies with thread sizes from ST2,2 to ST9,5 inclusive, flat seating heads and mechanical properties as specified in ISO 2702. The plain washers are captive, i. e. prevented from disassembly and free to rotate.