Home BSP Threads G1/4" BSP

G1/4" BSP Thread Specifications

Complete dimensions for G1/4" BSP pipe thread. TPI: 19, Pitch: 0.05263" (1.337 mm).

Thread Dimensions

DesignationG1/4" BSP
Nominal Pipe Size1/4"
TPI19
Pitch0.05263" (1.337 mm)
Outside Diameter0.518" (13.16 mm)
Pitch Diameter0.4843" (12.3 mm)
Minor Diameter0.4506" (11.45 mm)
Thread Angle55° (Whitworth form)
Thread Depth0.0337" (0.856 mm)

Tap Drill Size

Tap drill: 0.4506" (11.45 mm)

Common Applications