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Screw Pitch Gage, Inch 30 Leaves, Starrett

Screw Pitch Gage, Inch 30 Leaves, Starrett - Main image
$41.75 $57.99 In stock

Starrett screw pitch gage with 30 leaves. Measures 60° threads from 4 - 42 threads per inch (TPI).

Starrett screw pitch gages are among the most useful tools in any mechanic's toolbox. They quickly determine the pitch of various threads. These thread gage tools consist of a substantial steel case with a number of folding leaves at both ends, each leaf having teeth corresponding to a definite pitch, marked on each leaf.

The screw pitch gage features a locking device at both ends of the case, so leaves can be securely locked in position for use. Leaves have a special narrow design, permitting checking internal threads in nuts, etc., as well as external threads.

Leave Sizes: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 11.5, 12, 13, 14, 15 threads per inch (TPI)
Leave Sizes: 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42 threads per inch (TPI)

Starrett catalog number 6.

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Customer Reviews (4.4 / 5 · 5 reviews)

Thomas Z. ★★★★★

Finally got tired of guessing threads by trying random bolts, and this gage has thirty leaves so I can check everything from 4 to 42 TPI. The leaves feel sturdy and lock in place well, which makes reading the pitch quick and accurate.

Amelia ★★★★★

The markings on each leaf are crisp and easy to read, and having 30 leaves means I rarely need another gage for common threads. Covers exactly the 60° threads I work with in my shop, from coarse to fine.

Kevin H. ★★★★★

The leaves snap firmly into place and the markings are crisp enough to read in bad lighting, which made checking an old 12 TPI bolt a quick job. I've used cheaper pitch gauges before and this one just feels sturdier and more precise in hand.