Standard T Slot Sizes
You may want to verify the slot size. Unless someone recut them they should be a common size (1/2', 9/16' or 5/8'). Take flat file and run it down both sides of the slots to remove any burrs or mushrooming. STN T-slot nuts are used for setting up work on machine tools. They are also used with stud sets and have numerous applications on jig and fixture work. Note: Safety design tapped one thread short of going through to prevent stud from being screwed into table. Table T-slot centerline distance (lathe and mill) 1.5″ T-slot nominal dimensions.Note: The T-slots are extruded into the material. Table surfaces are machined for flatness, but the slots themselves require no additional finishing processes. Slot width, top:.25″ T width, bottom:.40″ Upper slot depth:.10″ T Slot depth:.10″. T-Slots and T-Nuts - Metric Sizes Standard metric T-slots and T-nuts. Sponsored Links. Standard Metric T-Slots. Size s1 (mm) t1 (mm) a1 (mm) h1 (mm) M4: 5: 10 - 11.
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Standards for T-slots
T-BOLTS, SLOTS, NUTS, AND TONGUES 1646 Table 2. American National Standard T-Bolts ANSI/ASME B5.1M-1985 (R1998) T-BOLTS Nominal T-Bolt Size and Thread A 2 ab a For inch tolerances for thread dia meters of bolts or studs a nd for threads see page 1716.
T-slots come in standard sizes. Needless to say things designed to fit in the T-slots are designed to fit these standard sizes. Similarly, the cutters designed for cutting T-slot are designed to cut standard size T-slots.
fig outline of a T-slot
The key characteristic of a T-slot is its width. Of course this can be metric or imperial
Metric T-slots (all in millimeters)
A b B+ C C+ Hmin Hmax
6 11 +1.5 5 +1 13 11
8 14.5 +1.5 7 +1 18 15
10 16 +2 7 +1 21 17
12 19 +2 8 +1 25 20
Imperial T-slots (All in inches)
diam of bolt width of slot depth of throatmax
Standard T Slot Sizes Machine
A
1/4 9/32 3/8 1/8 9/16 1/2 15/64 13/64
5/16 11/32 7/16 5/32 21/32 19/32
3/8 7/16
1/2 9/16
Standard T Slot Sizes Dimensions
5/8 11/16