Klein Tools S18 9/16-Inch Nut ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$68.71
$14.17
Klein Tools S18 9/16-Inch Nut Driver, 4-Inch Hollow Shank

Klein Tools S18 9/16-Inch Nut Driver, 4-Inch Hollow Shank

(No reviews yet) Write a Review

Model: S18
Selected Model is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$68.71
$14.17
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like
9/16-Inch Nut Driver, 4-Inch Hollow Shank

  • Features

    • Internal flanges provide solid, twist-resistant shaft anchor
    • Meets or exceeds applicable ASME / ANSI specifications
    • Smooth Comfordome handles fit the palm of the hand comfortably
    • Hollow shafts facilitate work on stacked circuit boards or other long bolt applications
    • Standard length works for most applications
    • Handles are color-coded for easy identification
    • Chrome-plated shaft helps prevent corrosion
    • Fits over long bolts and studs

Manufacturer Resources

Product Specs

Department:
Electrical
Product Group:
Hand Tools
Product Subgroup:
Screwdrivers & Drivers
Product Type:
Nut Driver

Klein Tools S18 – Frequently Asked Questions

1) Will the Klein Tools S18 nut driver fit over a long bolt or stud?
Yes. The S18 has a hollow 4-inch shank, so it slips down over long bolts and studs instead of stopping at the end of the thread. That is what makes it usable on stacked circuit boards and panel work where the stud runs well past the nut. The driver takes 9/16-inch hex nuts.
2) What size nut does the Klein S18 driver take?
It drives 9/16-inch hex nuts. Nut drivers are single-size, so the S18 is not adjustable and will not cover 1/2-inch or 5/8-inch nuts. If you are working a panel with mixed hardware you need the matching sizes alongside it. Klein color-codes the handles by size so you can grab the right one out of a pouch without reading the stamp.
3) Is a hollow shank nut driver better than a 1/4-inch hex bit socket in a drill for electrical panel work?
Different jobs. A hollow-shank driver like the S18 runs the nut down a long stud or threaded rod, and the hand feel lets you seat a terminal nut without stripping or over-torquing it. A bit-and-socket in a driver is faster on short bolts but bottoms out as soon as the stud is longer than the socket is deep, and it gives you no feel. Most electricians carry both and reach for the nut driver on terminations.
4) Does the S18 shaft twist loose in the handle under load?
The handle has internal flanges that anchor the shaft against twisting, which is the usual failure point on a cheap nut driver once you put real torque on a seized nut. The shaft is chrome plated to resist corrosion, and the tool meets or exceeds applicable ASME/ANSI specifications.
5) Is 4 inches long enough, or should I get a longer shank nut driver?
Four inches is the standard shank length and handles most work, including recessed nuts in enclosures and load centers. Go to a 6-inch or longer shank only when the nut sits deep in a cabinet or behind an obstruction that the handle would hit. For a stud that runs long but is reachable, the S18's hollow shaft already clears it.
6) What is the exact part number to order the Klein 9/16-inch hollow shank nut driver?
Klein Tools model and manufacturer part number S18. That is the 9/16-inch size with the 4-inch hollow shank and Comfordome handle. It ships as a single tool, not a set, and there is one configuration only, so there is no finish or handle option to specify.
7) Is this nut driver comfortable enough for a day of repetitive panel terminations?
The S18 uses Klein's Comfordome handle, a smooth rounded dome that sits in the palm so you can push through torque with your hand rather than pinching a thin grip. That matters on MRO and multi-family work where you are running dozens of terminal nuts in a shift.
How fast can I get the Klein Tools S18 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools S18 come with a warranty?
Absolutely. The Klein Tools S18 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools S18?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools S18 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!