Trapezoidal Threads (Tr) Unit: mm

SP

SizeMinor D Max.iameter Min.Drill SizeRecommended Hole Size
Tr10×28.2368.0008.208.18
Tr12×210.23610.00010.2010.20
Tr12×39.3159.0009.209.20
Tr14×311.31511.00011.2011.20
Tr16×313.31513.00013.2013.20
Tr16×412.37512.00012.2512.30
Tr18×414.37514.00014.2514.30
Tr20×416.37516.00016.2516.30
Tr22×517.45017.00017.2517.30
Tr24×519.45019.00019.2519.30
Tr25×520.45020.00020.2520.30
Tr26×521.45021.00021.2521.30
Tr26×620.50020.00020.3020.40
Tr28×523.45023.00023.2523.30
Tr30×624.50024.00024.3024.40

ROLL

CARBIDE

LONG

HAND

TAPS

EG (STI)

SPECIAL

THREADS,

GAUGES

THREAD

MILLS

DIES

CENTER

DRILLS