About Nuts, Materials, and Finishes
More
Selecting Compatible Lead Screws and Nuts
More
Metric 18-8 Stainless Steel Thin Square Nuts
Two-thirds the height of typical square nuts and made of stainless steel, these metric nuts are designed for use in low-clearance applications in humid, damp, and washdown environments. They’re often called square jam nuts because they can be jammed together to hold each other in place. They’re easily gripped with a wrench due to their flat, broad sides, which also prevent them from rotating in channels and square holes. Compared to hex nuts, a greater area is in contact with the fastened surface. And compared to steel nuts, they’re slightly less strong.
These nuts meet DIN 562, an international standard that signifies their material and dimensions are compatible with other products and tools.
Black-oxide stainless steel nuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
| M2 | 0.4 | 4 | 1.2 | DIN 562 | 25 | 000000000 | 000000 |
| M2.5 | 0.45 | 5 | 1.6 | DIN 562 | 25 | 000000000 | 00000 |
| M3 | 0.5 | 5.5 | 1.8 | DIN 562 | 50 | 000000000 | 0000 |
| M4 | 0.7 | 7 | 2.2 | DIN 562 | 50 | 000000000 | 00000 |
| M5 | 0.8 | 8 | 2.7 | DIN 562 | 50 | 000000000 | 0000 |
| M6 | 1 | 10 | 3.2 | DIN 562 | 50 | 000000000 | 00000 |
| M8 | 1.25 | 13 | 4 | DIN 562 | 25 | 000000000 | 00000 |
| M10 | 1.5 | 17 | 5 | DIN 562 | 10 | 000000000 | 0000 |
Black-Oxide 18-8 Stainless Steel | |||||||
| M3 | 0.5 | 5.5 | 1.8 | DIN 562 | 10 | 000000000 | 00000 |
| M4 | 0.7 | 7 | 2.2 | DIN 562 | 10 | 000000000 | 00000 |
Metric Medium-Strength Steel Thin Square Nuts
Made of Class 04 steel and about two-thirds the height of standard steel square nuts, these nuts are suitable for most low-clearance fastening applications. Also known as square jam nuts, they’re commonly jammed together to hold each other in place. Their flat, broad sides make them easy to grip with a wrench and keep them from rotating in channels and square holes. Compared to hex nuts, a greater area is in contact with the fastened surface.
These nuts meet DIN 562, an international standard that signifies their material and dimensions are compatible with other products and tools.
Black-oxide steel square nuts have a dark surface color and are mildly corrosion resistant in dry environments.
Zinc-plated steel square nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Steel—Class 04 | |||||||
| M3 | 0.5 | 5.5 | 1.8 | DIN 562 | 10 | 000000000 | 00000 |
| M4 | 0.7 | 7 | 2.2 | DIN 562 | 10 | 000000000 | 0000 |
Zinc-Plated Steel—Class 04 | |||||||
| M3 | 0.5 | 5.5 | 1.8 | DIN 562 | 100 | 000000000 | 0000 |
| M4 | 0.7 | 7 | 2.2 | DIN 562 | 100 | 000000000 | 0000 |
| M5 | 0.8 | 8 | 2.7 | DIN 562 | 100 | 000000000 | 00000 |
| M6 | 1 | 10 | 3.2 | DIN 562 | 100 | 000000000 | 00000 |
| M8 | 1.25 | 13 | 4 | DIN 562 | 50 | 000000000 | 00000 |
| M10 | 1.5 | 17 | 5 | DIN 562 | 25 | 000000000 | 00000 |
Acme Lead Screws and Nuts
Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction and size.
360 brass components have excellent machinability and good corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut or handle moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.
| Thread Size | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Specifications Met | Each | |
360 Brass | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/8"-12 | 3/8" | 3/4" | 1 | 1:1 | 0.083" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1/2"-10 | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 0000 |
| 5/8"-8 | 5/8" | 1" | 1 | 1:1 | 0.125" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-5 | 3/4" | 1 1/4" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-6 | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 7/8"-6 | 7/8" | 1 1/2" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-5 | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-6 | 1" | 1 5/8" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-10 | 1" | 1 5/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/8"-5 | 1 1/8" | 1 3/4" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/4"-5 | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/2"-4 | 1 1/2" | 2 1/4" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 2"-4 | 2" | 3" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 000000 |
Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.
| Thread Size | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Specifications Met | Each | |
360 Brass | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/8"-12 | 3/8" | 3/4" | 1 | 1:1 | 0.083" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1/2"-10 | 1/2" | 7/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 5/8"-8 | 5/8" | 1" | 1 | 1:1 | 0.125" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-5 | 3/4" | 1 1/4" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 3/4"-6 | 3/4" | 1 1/4" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 7/8"-6 | 7/8" | 1 1/2" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-5 | 1" | 1 5/8" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-6 | 1" | 1 5/8" | 1 | 1:1 | 0.167" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1"-10 | 1" | 1 5/8" | 1 | 1:1 | 0.1" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/4"-5 | 1 1/4" | 2" | 1 | 1:1 | 0.2" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
| 1 1/2"-4 | 1 1/2" | 2 1/4" | 1 | 1:1 | 0.25" | Class 2G | Rockwell B55 | ASTM B16 | 000000000 | 00000 |
Metric Lead Screws and Nuts
Found in hand-powered clamps, vises, grates, doors, and work tables, lead screws and nuts have broad, square threads that are well suited for quick assembly, high clamping forces, and lifting and lowering heavy objects. To ensure compatibility, please select components that have the same thread direction, size, and pitch. Class 7e and 7H components are compatible.
360 brass components have excellent machinability and good corrosion resistance.
Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
For technical drawings and 3-D models, click on a part number.
Square nuts fasten and position lead screw components. Square nuts have large sides, which make them easier to grip with a wrench than hex nuts and keep them from rotating in channels and square holes.