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About Nuts, Materials, and Finishes
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Square Weld Nuts
Square weld nuts have more weld points than hex weld nuts for a stronger hold. Weld them on flat uncoated steel surfaces. All have a collar pilot that assists alignment and prevents welding spatter from getting into threads.
For technical drawings and 3-D models, click on a part number.

Thread | ||||||||
---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Wd., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||
M12 | 1.75 | 19 | 8.1 | 17.4 | DIN 928 | 25 | 000000000 | 000000 |
Metric Steel Hex Weld Nuts



You can weld these nuts to flat and uneven uncoated steel surfaces for a strong permanent hold. A collar pilot assists alignment and prevents welding spatter from getting into threads.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
M12 | 1.75 | 19 | 8.6 | 14.8 | 1.4 | 14.8 | DIN 929 | 25 | 000000000 | 000000 |
Metric Stainless Steel Hex Weld Nuts



You can weld these nuts to flat and uneven uncoated stainless steel surfaces for a strong permanent hold. They have a collar pilot that assists alignment and prevents welding spatter from getting into threads.
For technical drawings and 3-D models, click on a part number.
Thread | Collar | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Wd., mm | Ht., mm | Dia., mm | Ht., mm | For Hole Dia., mm | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
M12 | 1.75 | 19 | 8.6 | 14.8 | 1.4 | 14.8 | DIN 929 | 10 | 000000000 | 000000 |
T-Slot Nuts

Designed to slide into T-slot tracks on machine tool tables, use these nuts to secure clamps and workpieces.
Fully threaded nuts allow a stud to extend beyond the bottom of the nut. Partially threaded nuts keep studs from traveling past the bottom of the nut and damaging your table.
Stainless steel nuts have excellent corrosion resistance. They are a good choice for use with stainless steel parts or in EDM applications.
For technical drawings and 3-D models, click on a part number.

Base | Fully Threaded | Partially Threaded | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Thread Pitch, mm | For Slot Wd., mm | Ht., mm | Wd., mm | O'all Ht., mm | Specifications Met | Each | Each | ||
Black-Oxide Steel | ||||||||||
M12 | 1.75 | 14 | 9 | 22 | 16 | __ | 000000000 | 00000 | 000000000 | 00000 |
M12 | 1.75 | 16 | 9 | 25 | 16 | __ | 000000000 | 0000 | 000000000 | 0000 |
M12 | 1.75 | 17 | 11 | 29 | 19 | __ | 000000000 | 0000 | 000000000 | 0000 |
M12 | 1.75 | 18 | 10 | 28 | 20 | DIN 508 | 000000000 | 0000 | 000000 | 00 |
M12 | 1.75 | 20 | 12 | 32 | 24 | DIN 508 | 000000000 | 00000 | 000000 | 00 |
18-8 Stainless Steel | ||||||||||
M12 | 1.75 | 14 | 8 | 22 | 16 | DIN 508 | 000000000 | 0000 | 000000 | 00 |
Drop-In T-Slot Nuts

Install these nuts from the top of the T-slot track and secure with a quarter turn to anchor clamps and workpieces. Also known as quarter-turn T-slot nuts.
Fully threaded nuts allow a stud to extend beyond the bottom of the nut.
For technical drawings and 3-D models, click on a part number.
Thread | Base | Fully Threaded | |||||
---|---|---|---|---|---|---|---|
Size | Pitch, mm | For Slot Wd., mm | Ht., mm | Wd., mm | O'all Ht., mm | Each | |
Black-Oxide Steel | |||||||
M12 | 1.75 | 14 | 8 | 22 | 16 | 000000000 | 00000 |
Secure-Hold T-Slot Nuts

After sliding the nut into a T-slot track, tighten the set screw to keep it in place. Use these nuts to secure clamps and workpieces in a machine table. They’re fully threaded to allow a stud to extend beyond the bottom of the nut.
For technical drawings and 3-D models, click on a part number.
T-Slot Nut and Setup Stud Kits


For mounting items to your machine table, these kits contain the full system of necessary components. Choose the kit with slot width matching that of your table.
Each kit includes T-slot nuts, setup studs, flange nuts, coupling nuts, and a T-slot cleaning tool.
T-Slot Nut | Setup Stud | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Slot Wd. | No. of Pieces | Includes | Threading | Base Ht. | Base Wd. | Overall Ht. | Threading | Min.Tensile Strength, psi | Material | Each | |
M12 Thread Size × 1.75mm Thread Pitch | |||||||||||
14mm | 37 | 4 T-Slot Nuts 4 Setup Studs each in 80 mm, 110 mm, 140 mm, 150 mm, 175 mm, and 200 mm Lengths 4 Flange Nuts 4 Coupling Nuts 1 T-Slot Cleaner | Partially Threaded | 9mm | 22mm | 16mm | Threaded on Both Ends | 125,000 | Black-Oxide Steel | 0000000 | 0000000 |
16mm | 37 | 4 T-Slot Nuts 4 Setup Studs each in 80 mm, 110 mm, 140 mm, 150 mm, 175 mm, and 200 mm Lengths 4 Flange Nuts 4 Coupling Nuts 1 T-Slot Cleaner | Partially Threaded | 9mm | 25mm | 16mm | Threaded on Both Ends | 125,000 | Black-Oxide Steel | 0000000 | 000000 |
17mm | 37 | 4 T-Slot Nuts 4 Setup Studs each in 80 mm, 110 mm, 140 mm, 150 mm, 175 mm, and 200 mm Lengths 4 Flange Nuts 4 Coupling Nuts 1 T-Slot Cleaner | Partially Threaded | 11mm | 29mm | 19mm | Threaded on Both Ends | 125,000 | Black-Oxide Steel | 0000000 | 000000 |
Setup Clamp and T-Slot Fastener Kits

Get everything needed for basic workholding on a machine table. Select a kit that matches your table's slot width. Each kit includes studs, setup clamps, step blocks, T-slot nuts, flange nuts, coupling nuts, and a T-slot cleaning tool.
Step Block | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Slot Wd., mm | No. of Pieces | Includes | Ht. Range, mm | Wd., mm | T-Slot Nut Base Wd., mm | Material | Container Type | Each | |
M12 × 1.75 mm Thread Size | |||||||||
14 | 53 | 24 Studs (4 each in 80 mm, 110 mm, 125 mm, 150 mm, 175 mm, and 200 mm lengths) 6 Step Setup Clamps (2 each in 64 mm, 102 mm, and 152 mm lengths) 3 Step Block Pairs 6 T-Slot Nuts 6 Flange Nuts 4 Coupling Nuts T-Slot Cleaner | 19-152 | 25 | 22 | Steel | Wall-Mount Steel Holder | 0000000 | 0000000 |
16 | 49 | 24 Studs (4 each in 80 mm, 110 mm, 125 mm, 150 mm, 175 mm, and 200 mm lengths) 6 Step Setup Clamps (2 each in 64 mm, 102 mm, and 152 mm lengths) 3 Step Block Pairs 6 T-Slot Nuts 6 Flange Nuts 4 Coupling Nuts T-Slot Cleaner | 19-152 | 25 | 25 | Steel | Wall-Mount Steel Holder | 0000000 | 000000 |
Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck with industry standard 1.5 mm × 60° serrations or wider 3 mm × 60° serrations.
Jaw nuts with M6, M8, M10, M12, M16, and M20 threads fit most chucks made by Kitagawa, LMC, Samchully, Seoam, Auto Strong, and other brands.
For technical drawings and 3-D models, click on a part number.