Fastening screw TRS | #4-20 BT 48° Thread

metalcylindrical headhex socket

Description TRS | #4-20 BT 48° Thread Material : Steel Standard: IFI, ANSI, ASTM, ISO, DIN, JIS, BS, AS, DIN 7500 TRS are designed for reliable and secure fastening into materials such as plastic. They have a trilobular lobed cross-section, and form threads in pre-existing holes by pushing material outward during installation. When installed in sheet metal, thread rolling screws often require an extruded hole; the extrusion forms a lead-in and provides extra length for improved retention. Thread forming screws are popular for applications where the loose chips formed by thread cutting processes must be avoided. JunHai / FastenerWorld Taiwan Thread Rolling Screws, #00,M1.0,SpecialParts, CNC/MachiningParts,MicroScrews,RivetNuts Jun Hai Enterprise CO., LTD. is major fastener supplier. #microscrews #specialparts #rivetnuts #ThreadRollingScrew etc.