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Precision Acme Lead Screws and Nuts
Lead Screws—Right-Hand Thread
Thread Size | Lg. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1018 Low-Carbon Steel | |||||||||||||
| 3/8"-10 | 18" | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Not Rated | Not Rated | 99030A988 | 000000 | ||
| 3/8"-10 | 3 ft. | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 126 | 64,000 | 99030A327 | 00000 | ||
| 3/8"-10 | 6 ft. | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 126 | 64,000 | 99030A727 | 00000 | ||
304 Stainless Steel | |||||||||||||
| 3/8"-10 | 3 ft. | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 150 | 72,000 | 98980A120 | 00000 | ||
| 3/8"-10 | 6 ft. | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 150 | 72,000 | 98980A335 | 000000 | ||
Lead Screws—Left-Hand Thread
Thread Size | Lg., ft. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1018 Low-Carbon Steel | |||||||||||||
| 3/8"-10 | 3 | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 126 | 64,000 | 99030A527 | 000000 | ||
| 3/8"-10 | 6 | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 126 | 64,000 | 99030A427 | 00000 | ||
304 Stainless Steel | |||||||||||||
| 3/8"-10 | 3 | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 150 | 72,000 | 98980A002 | 00000 | ||
| 3/8"-10 | 6 | Stub Acme | 1:1 | 1 | 0.1" | ±0.009"/1 ft. | Acme Class 2C | Brinell 150 | 72,000 | 98980A003 | 000000 | ||
Round Nuts—Right-Hand Thread
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Stub Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | — | 95365A523 | 000000 | ||
932 Bearing Bronze | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 700 | — | 1343K133 | 00000 | ||
PET | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Not Rated | Not Rated | 350 | 15 to 175 | 1349K138 | 00000 | ||
Round Nuts—Left-Hand Thread
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Stub Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | — | 95365A623 | 000000 | ||
932 Bearing Bronze | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 700 | — | 1343K233 | 00000 | ||
PET | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Not Rated | Not Rated | 350 | 15 to 175 | 1349K139 | 00000 | ||
Externally Threaded Nuts—Right-Hand Thread
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
673 Bronze | |||||||||||||||||
| 3/8"-10 | 5/8" | 0.688" | Stub Acme | 1:1 | 1 | 0.1" | 9/16"-18 | 3/8" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A127 | 000000 | ||
PET | |||||||||||||||||
| 3/8"-10 | 5/8" | 0.688" | Acme | 1:1 | 1 | 0.1" | 9/16"-18 | 3/8" | Acme Class 2C | Not Rated | Not Rated | 350 | 15 to 175 | 95075A227 | 00000 | ||
Acme Lead Screws and Nuts
Lead Screws—Right-Hand Thread
Thread Size | Thread Type | Lg. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alloy Steel | ||||||||||||||
| 3/8"-10 | Stub Acme | 12" | 1 | 1:1 | 0.1" | Acme Class 2G | ASTM Grade B7 | Rockwell C35 | 125,000 | ASTM A193 | 93410A912 | 000000 | ||
| 3/8"-10 | Stub Acme | 3 ft. | 1 | 1:1 | 0.1" | Acme Class 2G | ASTM Grade B7 | Rockwell C35 | 125,000 | ASTM A193 | 93410A608 | 00000 | ||
| 3/8"-10 | Stub Acme | 6 ft. | 1 | 1:1 | 0.1" | Acme Class 2G | ASTM Grade B7 | Rockwell C35 | 125,000 | ASTM A193 | 93410A315 | 000000 | ||
18-8 Stainless Steel | ||||||||||||||
| 3/8"-10 | Stub Acme | 12" | 1 | 1:1 | 0.1" | Acme Class 2G | — | Rockwell B96 | Not Rated | — | 95061A606 | 00000 | ||
| 3/8"-10 | Stub Acme | 3 ft. | 1 | 1:1 | 0.1" | Acme Class 2G | — | Rockwell B96 | Not Rated | — | 95061A810 | 00000 | ||
| 3/8"-10 | Stub Acme | 6 ft. | 1 | 1:1 | 0.1" | Acme Class 2G | — | Rockwell B96 | Not Rated | — | 95061A518 | 000000 | ||
Lead Screws—Left-Hand Thread
Thread Size | Thread Type | Lg., ft. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alloy Steel | ||||||||||||||
| 3/8"-10 | Stub Acme | 3 | 1 | 1:1 | 0.1" | Acme Class 2G | ASTM Grade B7 | Rockwell C35 | 125,000 | ASTM A193 | 93410A411 | 000000 | ||
| 3/8"-10 | Stub Acme | 6 | 1 | 1:1 | 0.1" | Acme Class 2G | ASTM Grade B7 | Rockwell C35 | 125,000 | ASTM A193 | 93410A412 | 00000 | ||
Hex Nuts—Right-Hand Thread
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | |||||||||||||
| 3/8"-10 | Stub Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 94815A018 | 00000 | ||
Zinc-Plated Carbon Steel | |||||||||||||
| 3/8"-10 | Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B75 | Not Rated | 98948A113 | 00000 | ||
18-8 Stainless Steel | |||||||||||||
| 3/8"-10 | Stub Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | Rockwell B97 | Not Rated | 95066A207 | 00000 | ||
Hex Nuts—Left-Hand Thread
Thread Size | Thread Type | Ht. | Wd. | No. of Thread Starts | Speed Ratio | Travel Distance per Turn | Thread Fit | Fastener Strength Grade/Class | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Carbon Steel | ||||||||||||||
| 3/8"-10 | Stub Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | SAE Grade 2 | Rockwell B85 | 64,000 | 91808A019 | 00000 | ||
18-8 Stainless Steel | ||||||||||||||
| 3/8"-10 | Stub Acme | 23/64" | 11/16" | 1 | 1:1 | 0.1" | Acme Class 2G | — | Rockwell B97 | Not Rated | 95066A357 | 00000 | ||
Fast-Travel Precision Acme Lead Screws and Nuts
Lead Screws—Right-Hand Thread
Thread Size | Lg. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1018 Low-Carbon Steel | |||||||||||||
| 3/8"-10 | 18" | Stub Acme | 2:1 | 2 | 0.2" | ±0.009"/1 ft. | Acme Class 2C | Not Rated | Not Rated | 99030A989 | 00000 | ||
| 3/8"-10 | 3 ft. | Stub Acme | 2:1 | 2 | 0.2" | ±0.009"/1 ft. | Acme Class 2C | Not Rated | Not Rated | 99030A991 | 00000 | ||
304 Stainless Steel | |||||||||||||
| 3/8"-10 | 18" | Stub Acme | 2:1 | 2 | 0.2" | ±0.009"/1 ft. | Acme Class 2C | Not Rated | Not Rated | 98980A974 | 00000 | ||
| 3/8"-10 | 3 ft. | Stub Acme | 2:1 | 2 | 0.2" | ±0.009"/1 ft. | Acme Class 2C | Not Rated | Not Rated | 98980A975 | 00000 | ||
| 3/8"-10 | 6 ft. | Stub Acme | 2:1 | 2 | 0.2" | ±0.009"/1 ft. | Acme Class 2C | Brinell 150 | 72,000 | 98980A340 | 000000 | ||
Round Nuts—Right-Hand Thread
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Stub Acme | 2:1 | 2 | 0.2" | Acme Class 2C | Brinell 217 | Not Rated | Not Rated | — | 95365A511 | 000000 | ||
932 Bearing Bronze | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 2:1 | 2 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 700 | — | 1343K121 | 00000 | ||
PET | |||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 2:1 | 2 | 0.2" | Acme Class 2C | Not Rated | Not Rated | 350 | 15 to 175 | 1349K118 | 00000 | ||
Round Nuts—Left-Hand Thread
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
932 Bearing Bronze | ||||||||||||||
| 3/8"-10 | 3/4" | 1.344" | Acme | 2:1 | 2 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 700 | 1343K221 | 000000 | ||
Externally Threaded Nuts—Right-Hand Thread
External Thread | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Dia. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Size | Lg. | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Temp., ° F | Each | |||
673 Bronze | |||||||||||||||||
| 3/8"-10 | 5/8" | 0.688" | Stub Acme | 2:1 | 2 | 0.2" | 9/16"-18 | 3/8" | Acme Class 2C | Brinell 70 | Not Rated | Not Rated | — | 95072A128 | 000000 | ||
PET | |||||||||||||||||
| 3/8"-10 | 5/8" | 0.688" | Acme | 2:1 | 2 | 0.2" | 9/16"-18 | 3/8" | Acme Class 2C | Not Rated | Not Rated | 350 | 15 to 175 | 95075A228 | 00000 | ||
Ultra-Precision Lead Screws and Nuts
Lead Screws—Right-Hand Thread
Thread Size | Lg., ft. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
303 Stainless Steel | ||||||||||||
| 3/8"-10 | 3 | Rounded Acme | 1:1 | 1 | 0.1" | ±0.0006"/1" | Brinell 160 | 90,000 | 6350K704 | 0000000 | ||
| 3/8"-10 | 6 | Rounded Acme | 1:1 | 1 | 0.1" | ±0.0006"/1" | Brinell 160 | 90,000 | 6350K705 | 000000 | ||
Flange Nuts—Right-Hand Thread
Flange | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Dia. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Each | |||
Acetal | ||||||||||||||||||
| B | 3/8"-10 | 1" | 0.625" | 1 7/64" | 3/16" | Rounded Acme | 1:1 | 7/8" | 1 | 0.1" | Not Rated | 9,700 | 75 | 3 | 6350K33 | 000000 | ||
Acetal with Wear-Compensating Spring | ||||||||||||||||||
| C | 3/8"-10 | 1 29/32" | 0.703" | 1 1/2" | 3/16" | Rounded Acme | 1:1 | 1 1/8" | 1 | 0.1" | Not Rated | 9,700 | 10 | 3 | 6350K53 | 00000 | ||
Fast-Travel Ultra-Precision Lead Screws and Nuts
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Style B | Style C |
Lead Screws—Right-Hand Thread
Thread Size | Lg., ft. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
303 Stainless Steel | ||||||||||||
| 3/8"-10 | 3 | Rounded Acme | 2:1 | 2 | 0.2" | ±0.0006"/1" | Brinell 160 | 90,000 | 6350K706 | 0000000 | ||
| 3/8"-10 | 6 | Rounded Acme | 2:1 | 2 | 0.2" | ±0.0006"/1" | Brinell 160 | 90,000 | 6350K14 | 000000 | ||
Flange Nuts—Right-Hand Thread
Flange | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Thread Size | Lg. | Dia. | Dia. | Thk. | Thread Type | Speed Ratio | Bolt Circle Dia. | No. of Thread Starts | Travel Distance per Turn | Hardness | Tensile Strength, psi | Dynamic Thrust Load Cap., lb. | No. of Mounting Holes | Each | |||
Acetal | ||||||||||||||||||
| B | 3/8"-10 | 1" | 0.625" | 1 7/64" | 3/16" | Rounded Acme | 2:1 | 7/8" | 2 | 0.2" | Not Rated | 9,700 | 75 | 3 | 6350K34 | 000000 | ||
Acetal with Wear-Compensating Spring | ||||||||||||||||||
| C | 3/8"-10 | 1 29/32" | 0.703" | 1 1/2" | 3/16" | Rounded Acme | 2:1 | 1 1/8" | 2 | 0.2" | Not Rated | 9,700 | 10 | 3 | 6350K54 | 00000 | ||















































