Metallics TEKD44SSB 14 x 3-1/2...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$52.87
$3.39
Metallics TEKD44SSB 14 x 3-1/2 in. 3/8 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - 410 Stainless Steel - 1425qty

Metallics TEKD44SSB 14 x 3-1/2 in. 3/8 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - 410 Stainless Steel - Each

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Model: TEKD44SSB
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$52.87
$3.39
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14 x 3-1/2 in. 3/8 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - 410 Stainless Steel - 1425qty

  • 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

    • 3/8 Indented Hex Head with Hex Drive
    • #3 Drill Point
    • 410 Stainless Steel Coating
    • 14 Diameter, 3-1/2" Length
    • 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:
1425 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:
0.172 - 0.19 in.
Fastener Head Type:
Indented Hex
Fastener Head Width:
0.367 - 0.375 in.
Fastener Length:
3-1⁄2
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:
1425
Order Minimum Uom Imperial:
EA
Pack Type:
Box
Product Group:
Fasteners
Product Height:
10.75 in
Product Length:
11.5 in
Product Weight:
54.65 lbs
Product Width:
11.5 in
Screw Point Type:
Drill Point
Slot Depth:
0.083 - 0.101
Slot Width:
0.064 - 0.075
Sub Division:
Electrical-E H2
Thread Standard:
SAE J78 - 2013
Washer Od:
0.480 - 0.520 in.
Washer Thickness:
0.030 - 0.050 IN
Width Across Corners:
0.409
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 TEKD44SSB – Frequently Asked Questions

1) Is 410 stainless okay for outdoor or coastal work?
410 stainless is the martensitic grade used for self-drilling screws because it can be hardened enough to cut its own hole, Rockwell C38-46 here. It resists corrosion far better than plain carbon steel and suits general exterior and damp interior use, but it is not as corrosion resistant as 300 series stainless. In salt spray or shoreline exposure, a 300 series or coated bi-metal fastener is the safer call.
2) Does the washer on these screws seal, or do I need a separate bonded washer?
The washer is an integral part of the head, a formed hex washer with an outside diameter of 0.480 to 0.520 in. and 0.030 to 0.050 in. thick. It spreads clamp load over the panel, but it is a plain metal washer, not an EPDM bonded seal. For weathertight roofing or siding penetrations you need a screw with a bonded neoprene or EPDM washer, or a separate sealing washer.
3) What standards do Metallics TEKD44SSB screws meet for a submittal?
Head and body dimensions follow ASME B18.6.3-2010, and the thread conforms to SAE J78-2013, the self-drilling tapping screw standard. Metallics lists the screw as both ARRA and Buy American compliant, with country of origin recorded as multiple. One caveat worth knowing on submittals: SAE J78 does not cover specifications for #7 diameter drill screws.
4) What size driver do I need for these #14 indented hex head self-drilling screws?
Hex drive, 3/8 inch indented hex washer head. Head width runs 0.367 to 0.375 in. with 0.409 across the corners, so a 3/8 hex driver or socket seats properly. Head height is 0.172 to 0.19 in.
5) How much material can I fasten with a 3-1/2 inch long self-drilling screw?
At 3-1/2 inches of length with a #14 diameter, this screw has the reach for thick stack-ups, strut and hanger attachments, standoff mounting, or fastening through insulation or sheathing into steel behind it. Thread runs along the shank from the drill point, so the usable grip is the length less whatever the point consumes drilling through the base metal.
6) Will stainless self-drilling screws snap off before carbon steel ones when I drive them?
No. Metallics states minimum torques are the same for stainless and steel self-drill screws, and the 410 stainless here is heat treated to Rockwell C38-46, the hardness range needed to cut steel. Drive them at a controlled speed with steady pressure; backing off pressure mid-drill is what work-hardens the hole and burns a point.
How fast can I get the Metallics TEKD44SSB 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 TEKD44SSB come with a warranty?
Absolutely. The Metallics TEKD44SSB 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 TEKD44SSB?
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
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