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Screws 10 x 1-1/4 IHW 5/16 Hd Combo S (1000 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics QK521M – Frequently Asked Questions
1) What size and drive does the Metallics QK521M screw use?
It's a #10 x 1-1/4 inch screw with an indented hex washer head, 5/16 inch across the hex, and a combination drive, so you can run it with a 5/16 nut driver or a Phillips/slotted bit depending on how you're set up. Sold 1000 pieces to the box.
2) Will a 5/16 nut driver fit the QK521M hex washer head screw?
Yes. The head is a 5/16 inch indented hex washer, which is the standard nut driver size electricians already carry for strap and box screws. The combo slot also lets you drive it with a bit if you can't get a driver on the head in a tight box.
3) What part number do I order for the Metallics 10 x 1-1/4 hex washer head combo screw?
QK521M is the Metallics part number, and it's the only model on the item, so there's no finish or size choice to specify when you order.
4) Is 1-1/4 inches long enough for a #10 screw into a wood stud or joist?
A #10 x 1-1/4 inch screw gives roughly an inch of thread into wood once you account for a strap, clamp, or thin plate under the washer head. That's adequate for fastening boxes, straps, and supports to framing. If you're going through drywall into the stud behind it, step up to a longer screw, because 1-1/4 inches leaves very little bite past a 1/2 inch board.
5) How many screws come in a box of Metallics QK521M?
One thousand pieces per box. That's a bulk-pack quantity aimed at crews and MRO stockrooms running the same #10 x 1-1/4 screw across a job rather than buying a small card at a time.
How fast can I get the Metallics QK521M 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 Metallics QK521M come with a warranty?
Absolutely. The Metallics QK521M 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 Metallics QK521M?
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 Metallics QK521M 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.