Enco: 1-800-USE-ENCO The Lowest Prices... Guaranteed!
Find It
 
Use drop list for more search types
Buy It Enco Model #
 
Order Pad
Shopping Cart
View Cart
Log In Home Shop Enco My Account Customer Support About Enco
 
 User ID
 
 Password Go
 Log In Help
 
 
Enter Email Address for Special Offers
 
Shop Enco Catalogs
  Master Catalog
  HOTdeals
  Enco Outlet
 
My Account
  Contact Information
  User ID and Password
  Shipping Addresses
  Order Status/History
 
Shopping Assistance
  Request A Catalog
  Machinery Manuals
  Special Offers Email
  Site Map
 
Customer Support
  Enco FAQs
  Terms of Sale
  Contact Enco
  Tax And Shipping
  Testimonials
  Rebates
 
McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
FREE UPS Ground Shipping on orders over $199. (Terms and conditions apply)

Keystone Threaded Rods to Keystone Ball Screws, Nuts & Accessories

Image Description Price Buy
Buy 3/4-6RH13A Keystone Precision B-7 Alloy Steel Acme Threaded Rods & Nuts 3/4-6RH13A Keystone Precision B-7 Alloy Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: B-7
  • Thread Size: 3/4-6
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 3/4-6RH13A
  • Length (Inch): 36
  • Length Ft. (Feet): 3
  • Material: Alloy Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Enco Part Number: 328-2592
Click for More Details
$45.81 ea

In Stock
Buy 4140750-3 Keystone General-Purpose Alloy Steel Acme Threaded Rods & Nuts 4140750-3 Keystone General-Purpose Alloy Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material: Alloy Steel
  • Thread Size: 3/4-6
  • Thread Direction: Right Hand
  • Type: General-Purpose Acme Threaded Rod
  • Manufacturer Part Number: 4140750-3
  • Thread Fit: 2G
  • Length Ft. (Feet): 3
  • Rotation: Right Hand
  • Enco Part Number: 319-7389
Click for More Details
$45.18 ea

In Stock
Buy Keystone General-Purpose Alloy Steel Acme Threaded Rods & Nuts Keystone General-Purpose Alloy Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material: Alloy Steel
  • Thread Size: 3/4-6
  • Thread Direction: Right Hand
  • Type: General-Purpose Acme Threaded Rod
  • Manufacturer Part Number: 4140750-3
  • Thread Fit: 2G
  • Length Ft. (Feet): 3
  • Rotation: Right Hand
  • Thread Direction: Right Hand
  • Thread Fit: 2G
  • brand: Keystone
  • Type: General-Purpose Acme Threaded Rod
  • Rotation: Right Hand
  • Thread Size: 3/4-6
  • Material: Alloy Steel
  • Available in 2 Variations
Price Range:
$45.18 - $76.19

Buy 2-2LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 2-2LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 2-2
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 2-2LGICY
  • Outside Diameter (Decimal Inch): 6.0000
  • Internal Thread Size: 2-2
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Height (Decimal Inch): 4.0
  • Enco Part Number: 328-2875
Click for More Details
$448.74 ea

Backordered
Buy 2-2RGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 2-2RGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 2-2
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 2-2RGICY
  • Outside Diameter (Decimal Inch): 6.0000
  • Internal Thread Size: 2-2
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Height (Decimal Inch): 4.0
  • Enco Part Number: 328-2918
Click for More Details
$448.74 ea

In Stock
Buy 1-10RH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts 1-10RH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 304
  • Thread Size: 1-10
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 1-10RH61SS
  • Length (Inch): 72
  • Length Ft. (Feet): 6
  • Material: Stainless Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Enco Part Number: 328-2727
Click for More Details
$446.50 ea

Backordered
Buy 1-6RH3 Keystone Precision 1018 Low Carbon Steel Acme Threaded Rods & Nuts 1-6RH3 Keystone Precision 1018 Low Carbon Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 1018
  • Thread Size: 1-6
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 1-6RH3
  • Length (Inch): 36
  • Thread Fit: 2C
  • Length Ft. (Feet): 3
  • Material: Low Carbon Steel
  • Type: Precision Acme Threaded Rod
  • Rotation: Right Hand
  • Enco Part Number: 328-2777
Click for More Details
$44.93 ea

In Stock
Buy 1/4-12L4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 1/4-12L4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 1/4-12
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 1/4-12L4STGICY
  • Outside Diameter (Decimal Inch): 1.3500
  • Internal Thread Size: 1/4-12
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 4
  • Number Starts: 4
  • Rotation: Left Hand
  • Height (Decimal Inch): 0.75
  • Enco Part Number: 328-2869
Click for More Details
$44.86 ea

In Stock
Buy 3/8-8L4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 3/8-8L4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 3/8-8
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 3/8-8L4STGICY
  • Outside Diameter (Decimal Inch): 1.3500
  • Internal Thread Size: 3/8-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 4
  • Number Starts: 4
  • Rotation: Left Hand
  • Height (Decimal Inch): 0.75
  • Enco Part Number: 328-2889
Click for More Details
$44.86 ea

Backordered
Buy 5/16-8L2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/16-8L2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/16-8
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/16-8L2STGICY
  • Outside Diameter (Decimal Inch): 1.3500
  • Internal Thread Size: 5/16-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 2
  • Number Starts: 2
  • Rotation: Left Hand
  • Height (Decimal Inch): 0.75
  • Enco Part Number: 328-2890
Click for More Details
$44.86 ea

In Stock
Buy 1/4-12R4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 1/4-12R4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 1/4-12
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 1/4-12R4STGICY
  • Outside Diameter (Decimal Inch): 1.3500
  • Internal Thread Size: 1/4-12
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 4
  • Number Starts: 4
  • Rotation: Right Hand
  • Height (Decimal Inch): 0.75
  • Enco Part Number: 328-2912
Click for More Details
$44.86 ea

In Stock
Buy 3/8-8R4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 3/8-8R4STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 3/8-8
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 3/8-8R4STGICY
  • Outside Diameter (Decimal Inch): 1.3500
  • Internal Thread Size: 3/8-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 4
  • Number Starts: 4
  • Rotation: Right Hand
  • Height (Decimal Inch): 0.75
  • Enco Part Number: 328-2932
Click for More Details
$44.86 ea

Backordered
Buy 5/16-8R2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/16-8R2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/16-8
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/16-8R2STGICY
  • Outside Diameter (Decimal Inch): 1.3500
  • Internal Thread Size: 5/16-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 2
  • Number Starts: 2
  • Rotation: Right Hand
  • Height (Decimal Inch): 0.75
  • Enco Part Number: 328-2933
Click for More Details
$44.86 ea

Backordered
Buy 3/8-8R2 Keystone Precision Bronze Acme Round Nuts & Acme Cylinder Nuts 3/8-8R2 Keystone Precision Bronze Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 3/8-8
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 3/8-8R2
  • Outside Diameter (Decimal Inch): 0.6800
  • Internal Thread Size: 3/8-8
  • Acme Type: Precision
  • External Thread Size: 0.562-18
  • Material: Bronze
  • Number of Starts: 2
  • Number Starts: 2
  • Thread Length (Decimal Inch): 0.3800
  • Rotation: Right Hand
  • Height (Decimal Inch): 0.62
  • Enco Part Number: 328-2447
Click for More Details
$43.70 ea

In Stock
Buy 3/8-8L2 Keystone Precision Bronze Acme Round Nuts & Acme Cylinder Nuts 3/8-8L2 Keystone Precision Bronze Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 3/8-8
  • Thread Direction: Left Hand
  • Manufacturer Part Number: 3/8-8L2
  • Outside Diameter (Decimal Inch): 0.6800
  • Internal Thread Size: 3/8-8
  • Acme Type: Precision
  • External Thread Size: 0.562-18
  • Material: Bronze
  • Number of Starts: 2
  • Number Starts: 2
  • Thread Length (Decimal Inch): 0.3800
  • Rotation: Left Hand
  • Height (Decimal Inch): 0.62
  • Enco Part Number: 328-2448
Click for More Details
$43.70 ea

Backordered
Buy 1-6RH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts 1-6RH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 304
  • Thread Size: 1-6
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 1-6RH61SS
  • Length (Inch): 72
  • Length Ft. (Feet): 6
  • Material: Stainless Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Enco Part Number: 328-2723
Click for More Details
$427.33 ea

Backordered
Buy 1-4LH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts 1-4LH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 304
  • Thread Size: 1-4
  • Thread Direction: Left Hand
  • Manufacturer Part Number: 1-4LH61SS
  • Length (Inch): 72
  • Length Ft. (Feet): 6
  • Material: Stainless Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Enco Part Number: 328-2718
Click for More Details
$425.84 ea

Backordered
Buy 1-5LH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts 1-5LH61SS Keystone Precision 304 Stainless Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 304
  • Thread Size: 1-5
  • Thread Direction: Left Hand
  • Manufacturer Part Number: 1-5LH61SS
  • Length (Inch): 72
  • Length Ft. (Feet): 6
  • Material: Stainless Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Enco Part Number: 328-2722
Click for More Details
$423.87 ea

In Stock
Buy 38906RH6 Keystone Precision 316 Stainless Steel Acme Threaded Rods & Nuts 38906RH6 Keystone Precision 316 Stainless Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 316
  • Thread Size: 7/8-6
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 38906RH6
  • Length (Inch): 72
  • Thread Fit: 2C
  • Length Ft. (Feet): 6
  • Material: Stainless Steel
  • Type: Precision Acme Threaded Rod
  • Rotation: Right Hand
  • Enco Part Number: 328-2813
Click for More Details
$422.10 ea

In Stock
Buy 1-5RH3 Keystone Precision 1018 Low Carbon Steel Acme Threaded Rods & Nuts 1-5RH3 Keystone Precision 1018 Low Carbon Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 1018
  • Thread Size: 1-5
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 1-5RH3
  • Length (Inch): 36
  • Thread Fit: 2C
  • Length Ft. (Feet): 3
  • Material: Low Carbon Steel
  • Type: Precision Acme Threaded Rod
  • Rotation: Right Hand
  • Enco Part Number: 328-2775
Click for More Details
$42.88 ea

In Stock
Buy 3/8-10RH13A Keystone Precision B-7 Alloy Steel Acme Threaded Rods & Nuts 3/8-10RH13A Keystone Precision B-7 Alloy Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: B-7
  • Thread Size: 3/8-10
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 3/8-10RH13A
  • Length (Inch): 36
  • Length Ft. (Feet): 3
  • Material: Alloy Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Enco Part Number: 328-2552
Click for More Details
$42.27 ea

In Stock
Buy 5/8-8RH6 Keystone Precision 1018 Low Carbon Steel Acme Threaded Rods & Nuts 5/8-8RH6 Keystone Precision 1018 Low Carbon Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: 1018
  • Thread Size: 5/8-8
  • Thread Direction: Right Hand
  • Manufacturer Part Number: 5/8-8RH6
  • Length (Inch): 72
  • Thread Fit: 2C
  • Length Ft. (Feet): 6
  • Material: Low Carbon Steel
  • Type: Precision Acme Threaded Rod
  • Rotation: Right Hand
  • Enco Part Number: 328-2770
Click for More Details
$42.27 ea

In Stock
Buy 5/8-10LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/8-10LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/8-10
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/8-10LGICY
  • Outside Diameter (Decimal Inch): 1.8600
  • Internal Thread Size: 5/8-10
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Height (Decimal Inch): 1.25
  • Enco Part Number: 328-2891
Click for More Details
$42.23 ea

Temporarily Unavailable
Buy 5/8-5LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/8-5LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/8-5
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/8-5LGICY
  • Outside Diameter (Decimal Inch): 1.8600
  • Internal Thread Size: 5/8-5
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Height (Decimal Inch): 1.25
  • Enco Part Number: 328-2892
Click for More Details
$42.23 ea

In Stock
Buy 7/16-8L2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 7/16-8L2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 7/16-8
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 7/16-8L2STGICY
  • Outside Diameter (Decimal Inch): 1.4650
  • Internal Thread Size: 7/16-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 2
  • Number Starts: 2
  • Rotation: Left Hand
  • Height (Decimal Inch): 1.0
  • Enco Part Number: 328-2894
Click for More Details
$42.23 ea

Backordered
Buy 5/8-10RGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/8-10RGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/8-10
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/8-10RGICY
  • Outside Diameter (Decimal Inch): 1.8600
  • Internal Thread Size: 5/8-10
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Height (Decimal Inch): 1.25
  • Enco Part Number: 328-2934
Click for More Details
$42.23 ea

In Stock
Buy 5/8-5RGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/8-5RGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/8-5
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/8-5RGICY
  • Outside Diameter (Decimal Inch): 1.8600
  • Internal Thread Size: 5/8-5
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Right Hand
  • Height (Decimal Inch): 1.25
  • Enco Part Number: 328-2935
Click for More Details
$42.23 ea

In Stock
Buy 7/16-8R2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 7/16-8R2STGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 7/16-8
  • Thread Direction: Right Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 7/16-8R2STGICY
  • Outside Diameter (Decimal Inch): 1.4650
  • Internal Thread Size: 7/16-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 2
  • Number Starts: 2
  • Rotation: Right Hand
  • Height (Decimal Inch): 1.0
  • Enco Part Number: 328-2937
Click for More Details
$42.23 ea

Backordered
Buy 1-1/2-2-2/3LHA Keystone Precision B-7 Alloy Steel Acme Threaded Rods & Nuts 1-1/2-2-2/3LHA Keystone Precision B-7 Alloy Steel Acme Threaded Rods & Nuts
Brand: Keystone
  • Material Grade: B-7
  • Thread Size: 1-1/2-2-2/3
  • Thread Direction: Left Hand
  • Manufacturer Part Number: 1-1/2-2-2/3LHA
  • Length (Inch): 72
  • Length Ft. (Feet): 6
  • Material: Alloy Steel
  • Type: Precision Acme Threaded Rod
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Enco Part Number: 328-2627
Click for More Details
$416.29 ea

In Stock
Buy 5/8-8LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts 5/8-8LGICY Keystone Machinable Gray Iron Acme Round Nuts & Acme Cylinder Nuts
Brand: Keystone
  • Thread Size: 5/8-8
  • Thread Direction: Left Hand
  • Nut Type: Machinable Round Nut
  • Manufacturer Part Number: 5/8-8LGICY
  • Outside Diameter (Decimal Inch): 1.8600
  • Internal Thread Size: 5/8-8
  • Acme Type: Precision
  • Material: Gray Iron
  • Number of Starts: 1
  • Number Starts: 1
  • Rotation: Left Hand
  • Height (Decimal Inch): 1.25
  • Enco Part Number: 328-2893
Click for More Details
$41.16 ea

In Stock
 
Keystone Threaded Rods to Keystone Ball Screws, Nuts & Accessories
Title |  Brand |  Popularity |  Price |  Category |  Favorites
Popularity |  Our Choices |  All-Around Favorites |  Title
Title |  Brand |  Category |  Price |  Popularity |  Favorites


Home | Shop Enco | My Account | Customer Support | FAQs |
Master Catalog | HOTdeals | Enco Outlet | Privacy Policy | Site Map |
 
Copyright © 2014 by Enco
400 Nevada Pacific Hwy., Fernley, NV 89408
800-USE-ENCO (800-873-3626)
 
 
 

 

 

GOOGLE Plus Like Us on Facebook Follow Us on Twitter Link to us on Linkedin Follow our Pins