Metallics TEKDHH19B 10 x 1-1/2...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.24
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Metallics TEKDHH19B 10 x 1-1/2 in. 5/16 High Hat Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - Steel Zinc - 10000qty

Metallics TEKDHH19B 10 x 1-1/2 in. 5/16 High Hat Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - Steel Zinc - Each

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Model: TEKDHH19B
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10 x 1-1/2 in. 5/16 High Hat Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - Steel Zinc - 10000qty

  • Features

    • 5/16 High Hat Hex Head with Hex Drive
    • Steel Zinc Material
    • 10 Diameter, 1-1/2" Length
    • #3 Drill Point

  • Additional Notes

    • For Maximum Drilling Engagement “Don’t Slip When You Drive” | Other sizes and quantities available by request | SAE J78 does not include Specifications for #7 diameter drill screws. | This table is only a guide and does not constitute a warranty of any type.

Manufacturer Resources

Product Specs

Minimum Purchase:
10000 units
Arra Compliant:
C
Buy American Compliant:
C
Division:
Electrical H1
Drill Point Size:
#3
Drive Type:
Hex
Fastener Head Height:
0.125 - 0.13 in.
Fastener Head Type:
Hex "High Hat" Washer
Fastener Head Width:
0.305 - 0.312 in.
Fastener Length:
1/1/02
Hardness:
Rockwell C32-40
Language Code:
EN
Material Standard:
AISI 1016 - 1024
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-High_Hat_Washer_Hd_Self_Drill_TS.pdf
Order Minimum Imperial:
10000
Order Minimum Uom Imperial:
TH
Pack Type:
Box
Panel Thickness:
0.110 - 0.175 IN
Product Group:
Fasteners
Product Height:
10.75 in
Product Length:
11.5 in
Product Weight:
105 lbs
Product Width:
11.5 in
Screw Point Type:
Drill Point
Sub Division:
Electrical-E H2
Thread Per Inch:
16
Thread Standard:
SAE J78 - 2013
Torsional Strength:
61 lb-in minimum
Washer Od:
0.364 - 0.414 in.
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Type BSD Self-Drilling & Tapping Screw
Type2:
Type BSD Self-Drilling & Tapping Screw
Series:
JTEKDHH
Product Finish:
Zinc
Product Details:
Type BSD Self-Drilling & Tapping Screw
Product Material:
Steel Zinc

Metallics TEKDHH19B – Frequently Asked Questions

1) Does the TEKDHH19B need a separate washer, or is one built into the head?
No separate washer needed. The head is a hex "high hat" washer type, meaning the bearing flange is formed as part of the head, with an outside diameter of 0.364 to 0.414 inch. That integral flange spreads the clamp load over sheet metal so you are not chasing loose washers on a ladder.
2) Can I buy a small box of the Metallics TEKDHH19B, or is there a minimum?
These ship in box pack with an order minimum of 10,000 pieces. It is a bulk contractor and distributor quantity, not a jobsite handful. If you need a few hundred for one panel, this is the wrong pack size.
3) Will these self-drilling screws snap off when driven with an impact driver?
Minimum torsional strength is 61 lb-in on the #10 size, with case hardness of Rockwell C32-40 on AISI 1016-1024 steel. That is the SAE J78 drill screw spec range. Snapping usually comes from over-driving after the point bottoms out, so back off trigger pressure once the washer head seats.
4) What thread pitch is the #10 x 1-1/2 in. TEK screw, and does it meet SAE J78?
16 threads per inch, built to SAE J78 - 2013, the drill screw standard. That is the coarse #10-16 Type BSD thread used for sheet metal and light structural steel, not a machine screw thread, so it taps its own hole as it drills.
5) Are these zinc screws OK for outdoor or damp locations?
The finish is zinc plating over carbon steel. That handles indoor and protected environments, strut and conduit hangers, equipment panels, interior framing. For sustained exterior exposure, coastal air, or treated lumber contact, a zinc-plated carbon steel screw will corrode, and you want stainless or a coated exterior drill screw instead.
6) Do these TEK screws qualify for Buy American or ARRA-funded projects?
The TEKDHH19B is flagged compliant for both Buy American and ARRA. That matters on federal, municipal, school, and transit work where the spec calls out domestic sourcing language on fasteners.
7) What is the difference between a high hat washer head TEK screw and a standard hex washer head?
Both drive with a hex socket, but the high hat has a taller crown, 0.125 to 0.130 inch head height above the 0.364 to 0.414 inch washer flange. The extra height gives the nutsetter deeper engagement so the driver does not cam off the head under impact, which is the usual failure when driving long #10 screws into 1/8 inch steel. A flatter hex washer head sits lower if clearance above the panel is tight.
8) How much does the bulk quantity of these 1-1/2 inch TEK screws weigh?
Shipping weight on the full quantity is listed at 105 lbs. Worth knowing before you plan a hand delivery to an upper floor or load it into a van with other material.
How fast can I get the Metallics TEKDHH19B 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 TEKDHH19B come with a warranty?
Absolutely. The Metallics TEKDHH19B 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 TEKDHH19B?
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 TEKDHH19B from ZenSupply?
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