Metallics QK16M 8 x 1-1/4 in. ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.14
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Metallics QK16M 8 x 1-1/4 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - 1000qty

Metallics QK16M 8 x 1-1/4 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - Each

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Model: QK16M
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.14
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8 x 1-1/4 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - 1000qty

  • 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.
    • Steel Zinc Material
    • Hex 1/4 Head with Slotted Drive
    • 8 Diameter, 1-1/4" Length

Manufacturer Resources

Product Specs

Minimum Purchase:
1000 units
Arra Compliant:
C
Buy American Compliant:
C
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:
1/1/04
Hardness:
Rockwell C28-38
Language Code:
EN
Material Standard:
AISI 1018 - 1022
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Head_Slot_Sharp_Pt_Self_Pierce_TS.pdf
Order Minimum Imperial:
1000
Order Minimum Uom Imperial:
TH
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
6.03 lbs
Product Width:
4.5 in
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 QK16M – Frequently Asked Questions

1) Do I need to pre-drill for the Metallics QK16M self-piercing screws?
No pilot hole needed in thin-gauge material. The QK16M 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 lets more thread engage the material.
2) Are the Metallics QK16M screws sold individually or in bulk?
Bulk. The order minimum is 1,000 pieces, supplied in a jar. The packed jar weighs 6.03 lbs and measures 4.5 x 7.25 x 4.5 inches.
3) What size driver fits the Metallics QK16M hex head screw?
A 1/4 inch hex driver or nutsetter. The head is hex type measuring 0.244 to 0.25 inch across, with a head height of 0.096 to 0.11 inch. It is also slotted, so a flat blade works for hand driving: the slot runs 0.045 to 0.054 inch wide and 0.052 to 0.074 inch deep.
4) Does the QK16M screw have a built-in washer head?
Yes, the head carries an integral washer with an outside diameter of 0.322 to 0.348 inch and a thickness of 0.019 to 0.031 inch. That extra bearing surface spreads load on sheet metal and on soft materials where a plain hex head would pull through.
5) Are these screws hardened enough to pierce sheet metal?
They are case hardened to Rockwell C28-38 and made from AISI 1018 to 1022 steel, which is the grade combination used for piercing and tapping into light-gauge steel. Finish is zinc plating over steel for general indoor corrosion resistance.
6) Do Metallics QK16M screws meet Buy American requirements for a federal job?
They are flagged Buy American compliant and ARRA compliant, which is what a government or institutional spec usually asks for on fasteners. Country of origin is listed as multiple.
7) Will a standard #8 tapping screw head dimension chart match these?
No, and that trips people up. Head dimensions on self-piercing screws differ from standard tapping screws, and there is no single industry standard for self-piercing screw dimensions. Use the QK16M's own figures: 0.244 to 0.25 inch across the hex, 0.096 to 0.11 inch head height, 0.322 to 0.348 inch washer OD. Treat them as a guide, since deviations can occur.
8) What thread count do the Metallics #8 self-piercing screws have?
15 threads per inch on the #8 x 1-1/4 inch size. That is a coarser twin-lead thread than a standard #8 machine screw, which is what lets it tap its own hole and drive with less torque.
9) What part number do I order for the #8 x 1-1/4 inch Metallics self-piercing screw?
QK16M is the Metallics part number, from the JQK series of hex head slotted sharp point self-piercing and tapping screws. Other sizes and quantities in the series are available by request.
How fast can I get the Metallics QK16M 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 QK16M come with a warranty?
Absolutely. The Metallics QK16M 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 QK16M?
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 QK16M from ZenSupply?
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