Metallics QK15W8M 8 x 1 in. 1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.31
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Metallics QK15W8M 8 x 1 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Gray - Steel Zinc - Each

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Model: QK15W8M

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

$50.31
$0.31
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8 x 1 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Gray - Steel Zinc - 8000qty

  • 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.

  • Features

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

Manufacturer Resources

Product Specs

Minimum Purchase:
8000 units
Arra Compliant:
N
Buy American Compliant:
No
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Color:
White
Fastener Head Height:
0.096 - 0.11 in.
Fastener Head Type:
Hex
Fastener Head Width:
0.244 - 0.25 in.
Fastener Length:
1
Hardness:
Rockwell C28-38
Language Code:
EN
Material Standard:
AISI 1018 - 1022
Order Minimum Imperial:
8000
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:
15
Washer Od:
0.322 - 0.348 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 QK15W8M – Frequently Asked Questions

1) What is the minimum order quantity on the Metallics QK15W8M self-piercing screw?
The QK15W8M ships in box quantities with a minimum of 8,000 each. It's a bulk-buy item for shops doing repetitive sheet metal work, not a small-count box.
2) Do I need to pre-drill for the Metallics QK15W8M screw?
No pilot hole needed in sheet metal. The QK15W8M is a sharp point self-piercing and tapping screw, so it pierces and forms its own thread as it drives. Twin lead threads cut the driving torque, and the undercut under the head gives you more thread engagement in thin material.
3) Will these self-piercing screws meet a Buy American requirement on a federal job?
No. The QK15W8M 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 screw will not satisfy it.
4) Can I drive these screws with a nut driver or do I need a screwdriver?
Either. The head is a 1/4 inch hex with a slot cut in it, so a 1/4 inch nut driver or hex socket works, and a flat blade fits the slot for hand work in tight spots. Slot width runs 0.045 to 0.054 inch and slot depth 0.052 to 0.074 inch. Head width measures 0.244 to 0.25 inch.
5) What size and thread count is the Metallics QK15W8M?
It's a #8 diameter screw, 1 inch long, with 15 threads per inch. That TPI is coarser than a standard #8 machine thread, which is what lets it tap its own hole in sheet metal on the first pass.
6) Does the Metallics QK15W8M come with a sealing washer under the head?
There's an integral washer at the head, with an outside diameter of 0.322 to 0.348 inch and a thickness of 0.019 to 0.031 inch. That gives you a bearing surface wider than the 1/4 inch hex itself, which helps on thin sheet where the head could otherwise pull through.
7) Is the Metallics QK15W8M hard enough to tap into steel studs or raceway?
Case hardness is Rockwell C28-38, made from AISI 1018 to 1022 steel. That's a case hardened low carbon steel screw intended for piercing and tapping sheet gauge material, not for drilling heavy structural steel.
8) Are these screws plated for corrosion resistance, and what do the heads look like?
The QK15W8M is zinc plated steel. The head carries a white color finish, which is useful when you want the fastener to disappear against white sheet metal or trim.
9) How much does the hex head of this self-piercing screw stand off the surface?
Head height runs 0.096 to 0.11 inch. Worth noting that self-piercing screw head dimensions are not the same as standard tapping screw heads, and there is no single industry standard for them, so treat the published figures as a guide rather than a tolerance you can machine to.
10) Can I get the Metallics JQK self-piercing screw in a different length or a smaller box?
The QK15W8M itself is the #8 by 1 inch configuration in the JQK series. Other sizes and quantities within the series are available by request.
How fast can I get the Metallics QK15W8M 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 QK15W8M come with a warranty?
Absolutely. The Metallics QK15W8M 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 QK15W8M?
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 QK15W8M from ZenSupply?
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