Thread Triangles w/ Holding Loop - 13-109-4

Thread Measuring Triangles

• Thread Triangles quickly measure pitch diameter of all 60 degree threads from 4 to 80 pitch, standard and special.
• Instantly classifies thread as 2a, 3a.
• No complicated formulas to figure! For any standard thread refer directly to chart
• Thread Triangles nest well into the “V” of the thread instead of making just point contact
• Micrometer rests on two parallel flat surfaces for better feel
• Each set includes: thread triangle, holders and chart

13-109-4

• Alternative way to hold thread triangle in place

See all Thread Triangles