Metallics QK10B 8 x 3/4 in. 1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.09
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Metallics QK10B 8 x 3/4 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - 10000qty

Metallics QK10B 8 x 3/4 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - Each

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Model: QK10B
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.09
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8 x 3/4 in. 1/4 Hex Head Slotted Sharp Point Self-Piercing & Tapping Screws - Steel Zinc - 10000qty

  • Features

    • Twin lead threads help to reduce driving torque.
    • Undercut area beneath the head allows greater length of thread engagement.
    • Hex 1/4 Head with Slotted Drive
    • 8 Diameter, 3/4" Length
    • Steel Zinc Material

  • 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:
10000 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:
4-Mar
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:
10000
Order Minimum Uom Imperial:
TH
Pack Type:
Box
Product Group:
Fasteners
Product Height:
6.13 in
Product Length:
9 in
Product Weight:
38.8 lbs
Product Width:
9 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 QK10B – Frequently Asked Questions

1) How many Metallics QK10B screws come in a box?
The QK10B ships in a box of 10,000. That is the order minimum on this #8 x 3/4 in. self-piercing screw, so it is a bulk-stock item rather than a small contractor pack. The full box weighs 38.8 lbs.
2) Do I need to pre-drill for these self-piercing screws?
No pilot hole. The QK10B has a sharp point that pierces light-gauge steel on its own, and twin lead threads to cut driving torque. Hardened to Rockwell C28-38 so the point holds up through the sheet.
3) Are the Metallics QK10B screws Buy American and ARRA compliant?
Both are flagged compliant on the QK10B, which is what a government or institutional procurement file usually needs. Country of origin is listed as multiple.
4) What driver do I need for the Metallics QK10B hex head screw?
A 1/4 inch hex driver or nutsetter. The head is hex with a measured width across flats of 0.244 to 0.25 in. and a head height of 0.096 to 0.11 in. It is also slotted (slot width 0.045 to 0.054 in., depth 0.052 to 0.074 in.), so a flat blade works for hand starts or removal in tight spots.
5) Is the QK10B screw head washered, and how much bearing surface does it give?
It has an integral washer face with an outside diameter of 0.322 to 0.348 in. and a thickness of 0.019 to 0.031 in. That spreads load over sheet metal and strap without needing a separate washer. There is also an undercut under the head so more thread engages in the material.
6) Will these zinc-plated screws hold up outdoors?
The QK10B is steel with a zinc finish, which is a dry indoor-to-protected-location plating. For exposed exterior work or wet locations, step up to a stainless or hot-dip coated fastener instead.
7) Can I use the published head dimensions to spec a hole or clearance?
Treat them as a guide. Metallics states there is no single standard for self-piercing screw dimensions and that head dimensions differ from standard tapping screws, so the QK10B figures are nominal ranges and small deviations can occur. Size clearance off the upper end of the washer OD range, 0.348 in.
8) What thread count and steel grade are these #8 self-tapping screws?
15 threads per inch on a #8 diameter, 3/4 in. long, made from AISI 1018-1022 carbon steel and case hardened to Rockwell C28-38. The 15 TPI twin lead is coarser than a machine thread, which is what lets it tap its own hole in sheet steel.
How fast can I get the Metallics QK10B 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 QK10B come with a warranty?
Absolutely. The Metallics QK10B 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 QK10B?
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 QK10B from ZenSupply?
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