Metallics QK205M 10 x 1/2 in. ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Metallics QK205M 10 x 1/2 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - 5000qty

Metallics QK205M 10 x 1/2 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - Each

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Model: QK205M
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.09
$0.09
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10 x 1/2 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - 5000qty

  • Features

    • Undercut area beneath the head allows greater length of thread engagement.
    • Twin lead threads help to reduce driving torque.
    • Steel Zinc Material
    • Hex 1/4 Head with Slotted Drive
    • 10 Diameter, 1/2" Length

  • Additional Notes

    • Other sizes and quantities available by request.| Head dimensions of self-piercing screws differ firom those of standard tapping screws. | There is no single standard for self·piercing screw dimensions. These values are offered as a guide; deviations from these specifications may occur.

Manufacturer Resources

Product Specs

Minimum Purchase:
5000 units
Arra Compliant:
N
Buy American Compliant:
No
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.096 - 0.11 in.
Fastener Head Type:
Hex
Fastener Head Width:
0.244 - 0.25 in.
Fastener Length:
2-Jan
Hardness:
Rockwell C28-38
Language Code:
EN
Material Standard:
AISI 1018 - 1022
Order Minimum Imperial:
5000
Order Minimum Uom Imperial:
EA
Pack Type:
Box
Product Group:
Fasteners
Screw Point Type:
Sharp Point
Slot Depth:
0.052 - 0.074
Slot Width:
0.045 - 0.054
Sub Division:
Electrical-E H2
Thread Per Inch:
12
Washer Od:
0.384 - 0.414 in.
Washer Thickness:
0.019 - 0.031 IN
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Self-Piercing & Tapping Screw
Type2:
Self-Piercing & Tapping Screw
Series:
JQK
Product Finish:
Zinc
Product Details:
Self-Piercing & Tapping Screw
Product Material:
Steel Zinc

Metallics QK205M – Frequently Asked Questions

1) Do I need to pre-drill for the Metallics QK205M self-piercing screw?
No pilot hole needed. The QK205M is a self-piercing and tapping screw with a sharp point, so it pierces and forms its own thread in sheet metal as it drives. Twin lead threads cut the driving torque, which helps when you are running a lot of them with a cordless driver.
2) What thread count and size is the Metallics QK205M, and will it match a #10-12 tapped hole?
It is a #10 diameter screw with 12 threads per inch at 1/2 inch length, so it matches #10-12 self-tapping prep, not a #10-24 or #10-32 machine screw thread. If the hole in your box or strut is machine-tapped, use a machine screw instead.
3) Will the QK205M meet a Buy American or ARRA requirement on a public project?
No. The QK205M is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your specification carries a domestic sourcing clause, this part will not satisfy it.
4) What driver do I need for the Metallics QK205M hex head screw?
It takes a 1/4 inch hex driver, and the head is also slotted so a flat blade works in tight spots where a socket will not fit. Measured head width runs 0.244 to 0.25 in. with a head height of 0.096 to 0.11 in., and the slot is 0.045 to 0.054 in. wide by 0.052 to 0.074 in. deep.
5) Is the QK205M a washer head screw, and will it hold a cover plate without a separate washer?
The head has an integral washer, 0.384 to 0.414 in. outside diameter and 0.019 to 0.031 in. thick, so it bears on the panel without adding a loose washer. The undercut under the head also gives more thread engagement in thin material.
6) Are these zinc screws okay for outdoor or damp electrical work?
The QK205M is zinc plated carbon steel, AISI 1018-1022. Zinc plating is for dry indoor or protected service. For exterior, wet, or corrosive locations, step up to stainless steel fasteners.
7) How are the Metallics QK205M screws packaged and what is the smallest quantity I can buy?
They ship in a box with a 5000 each minimum, so this is a bulk buy sized for crews doing repetitive sheet metal and enclosure work rather than a small repair.
8) How hard are these screws, and will the point hold up driving into steel studs or enclosures?
Case hardness is Rockwell C28-38, which is what lets the sharp point pierce sheet steel and form its own thread. That is a sheet metal fastener rating, not an anchor for structural steel or concrete.
9) Can I use the published head dimensions to check clearance against a standard tapping screw?
Treat them as a guide only. Metallics states that head dimensions on self-piercing screws differ from standard tapping screws and that no single standard governs self-piercing screw dimensions, so deviations from the listed head and washer figures can occur. If you have a tight clearance window, verify against a sample.
How fast can I get the Metallics QK205M 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 QK205M come with a warranty?
Absolutely. The Metallics QK205M 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 QK205M?
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 QK205M from ZenSupply?
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