Metallics JTEKD21SS 12 x 1-1/2...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JTEKD21SS 12 x 1-1/2 in. 5/16 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - 410 Stainless Steel - 100qty

Metallics JTEKD21SS 12 x 1-1/2 in. 5/16 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - 410 Stainless Steel - Each

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Model: JTEKD21SS
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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12 x 1-1/2 in. 5/16 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - 410 Stainless Steel - 100qty

  • Additional Notes

    • 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.

  • Features

    • 5/16 Indented Hex Head with Hex Drive
    • #3 Drill Point
    • 12 Diameter, 1-1/2" Length
    • 410 Stainless Steel Coating
    • Minimum torques are the same for stainless and steel self-drill screws. Drill time is 2.5 seconds for a 1 mm thick plate.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
C
Buy American Compliant:
C
Dimensional Standard:
ASME B18.6.3-2010
Division:
Electrical H1
Drill Point Size:
#3
Drive Type:
Hex
Fastener Head Height:
0.139 - 0.155 in.
Fastener Head Type:
Indented Hex
Fastener Head Width:
0.305 - 0.312 in.
Fastener Length:
1/1/02
Hardness:
Rockwell C38-46
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Head_Self-Drill_TS_Indent_Hex_Washer.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Panel Thickness:
0.110 - 0.210 IN
Product Group:
Fasteners
Product Height:
3.6 in
Product Length:
3 in
Product Weight:
1.34 lbs
Product Width:
3 in
Screw Point Type:
Drill Point
Slot Depth:
0.077 - 0.093
Slot Width:
0.056 - 0.067
Sub Division:
Electrical-E H2
Thread Per Inch:
14
Thread Standard:
SAE J78 - 2013
Thread Type:
UNC
Torsional Strength:
92 lb-in minimum
Washer Od:
0.398 - 0.432 in.
Washer Thickness:
0.022 - 0.039 IN
Width Across Corners:
0.34
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Type BSD Self-Drilling & Tapping Screw
Type2:
Type BSD Self-Drilling & Tapping Screw
Series:
JTEKD
Product Details:
Type BSD Self-Drilling & Tapping Screw
Product Material:
410 Stainless Steel

Metallics JTEKD21SS – Frequently Asked Questions

1) Are 410 stainless self-drilling screws strong enough to drill steel, or should I use carbon steel?
410 is a hardenable martensitic stainless, and these are heat treated to Rockwell C38-46, which is what lets the point cut steel. Minimum torsional strength is 92 lb-in, the same minimum applied to carbon steel self-drillers, so you aren't giving up drive strength to get corrosion resistance. Keep driver RPM reasonable; the point burns if you lean on it.
2) Is a 1-1/2 in. self-drilling screw too long for attaching strut or conduit straps to metal deck?
At 1-1/2 in. the JTEKD21SS is a long #12, meant for cases where you're going through a strap, standoff or layered assembly before reaching the steel. The drill point only consumes enough length to cut the 0.110 to 0.210 in. panel, so the balance is thread grip and standoff clearance. If you're fastening a thin strap flat to deck with nothing stacked under it, a shorter #12 in the same JTEKD series wastes less length and leaves no protruding tail behind the panel.
3) What size driver do I need for these #12 indented hex head self-drilling screws?
Use a 5/16 hex driver. The head measures 0.305 to 0.312 in. across the flats and 0.34 across the corners, so a 5/16 magnetic nutsetter seats it properly. Head height runs 0.139 to 0.155 in.
4) Is the washer built into the JTEKD21SS screw or does it come loose?
It's an integral washer under the indented hex head, not a separate part to handle. Outside diameter is 0.398 to 0.432 in. with a washer thickness of 0.022 to 0.039 in., which gives you a wider bearing surface against sheet metal or a strap without adding a loose piece to the install.
5) What thread does the Metallics JTEKD21SS run, and will it hold in tapped steel?
Threads are UNC at 14 threads per inch on a #12 diameter, made to SAE J78 - 2013 for self-drilling tapping screws, with head geometry to ASME B18.6.3-2010. The screw taps its own mating thread as it drills, so engagement in the 0.110 to 0.210 in. panel range comes from the formed thread, not a nut.
6) Do these screws qualify for a Buy American or ARRA funded job?
The JTEKD21SS is flagged compliant for both Buy American and ARRA. Country of origin is listed as multiple, so if your submittal needs a specific mill country on the paperwork, confirm it per lot.
7) How are these Metallics self-drilling screws packaged and what is the minimum order?
They ship in a jar, with a minimum order of 100 count. The jar weighs 1.34 lbs. Other sizes and quantities are available by request.
8) How fast do these drill, and can I use a standard cordless drill?
Drill time is 2.5 seconds through a 1 mm thick plate. A cordless impact driver or screwgun with a 5/16 nutsetter handles them; steady pressure and moderate speed keep the heat treated point from dulling.
How fast can I get the Metallics JTEKD21SS 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 JTEKD21SS come with a warranty?
Absolutely. The Metallics JTEKD21SS 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 JTEKD21SS?
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 JTEKD21SS from ZenSupply?
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