DIN thread types (excerpt from DIN 202) Profile (diagram) Type of thread Symbol Short designation 1 Examples Range of nominal sizes As specified

DIN thread types (excerpt from DIN 202) Profile (diagram) Type of thread Symbol Short designation 1 Examples Range of nominal sizes As specified in Application Parallel (single-start or multi-start) knuckle thread Rd Parallel knuckle thread Parallel knuckle thread with clearance \ 30° 7 Parallel knuckle thread BH Rd 40 x 7 6 Rd 40 x 7s P 76 8 mm to 200 mm DIN 405-1 and DIN 405-2 General Rd 40 x 5 10 mm to 300 mm DIN 20400 Mining with increased bearing depth Rd 80 x 10 50 mm to 320 mm DIN 15403 Lifting hooks Rd 70 20 mm to 100 mm DIN 7273-1 Steel sheet components and associated couplings Rd 59 x 7 34 mm to 79 mm DIN 262-1 and DIN 262-2 Rail vehicles Rd 59 x 7 left-hand Rd 50 x 7 50 mm DIN 264-1 and DIN 264-2 Rail vehicles Rd 50 x 7 left-hand Rd 40 x 7 7 40 mm 80 mm and 110 mm DIN 3182-1 Respiratory equipment GL 25 x 3 8 mm to 40 mm DIN 168-1 Glass containers Edison thread E 27 14 mm 16 mm 18 mm 27 mm 33 mm DIN 40400 D-type fuses E 14 and E 27 screw threads also for lamp caps and holders E 5 5 mm DIN EN 60061-1 Lamp caps E 10 10 mm E 40 40 mm 28 x 2 28 mm and 40 mm DIN EN 60399 External screw threads for lamp holders and internal screw threads for lamp shade carrier rings 1 Full designations are given in the relevant standards. E D 457 Technical information threading WALTER PROTOTYP