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Nut Type Nut Type | Show |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Fastener Strength Grade/Class Fastener Strength Grade/Class |
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About Nuts, Materials, and Finishes
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Selecting Compatible Lead Screws and Nuts
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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.
For technical drawings and 3-D models, click on a part number.
Metric Low-Strength Steel Thin Square Nuts
About half the strength and two-thirds the height of medium-strength steel square nuts, use these metric nuts in light duty, low-clearance 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. A zinc plating protects these nuts from corrosion in wet environments.
These nuts meet DIN 562, an international standard that signifies their material and dimensions are compatible with other products and tools.
For technical drawings and 3-D models, click on a part number.
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 | 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 1/4"-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 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, 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.
| Thread Size | Thread Pitch, mm | Ht., mm | Wd., mm | No. of Thread Starts | Speed Ratio | Travel Distance per Turn, mm | Thread Fit | Hardness | Each | |
360 Brass | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M10 | 2 | 20 | 19 | 1 | 1:1 | 2 | Class 7H | Not Rated | 000000000 | 000000 |
| M12 | 3 | 25 | 25 | 1 | 1:1 | 3 | Class 7H | Not Rated | 000000000 | 00000 |
| M16 | 4 | 35 | 28 | 1 | 1:1 | 4 | Class 7H | Not Rated | 000000000 | 00000 |
| M20 | 4 | 50 | 38 | 1 | 1:1 | 4 | Class 7H | Not Rated | 000000000 | 00000 |