Metallics JDS159SS 8 x 2 in. 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JDS159SS 8 x 2 in. 1/4 Indented Hex Head Slotted Sharp Point Tapping Screws - 18-8 Stainless - 100qty

Metallics JDS159SS 8 x 2 in. 1/4 Indented Hex Head Slotted Sharp Point Tapping Screws - 18-8 Stainless - Each

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Model: JDS159SS
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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8 x 2 in. 1/4 Indented Hex Head Slotted Sharp Point Tapping Screws - 18-8 Stainless - 100qty

  • Features

    • Hex 1/4 Head with slotted Drive
    • 8 Diameter, 2" Length
    • 18-8 Stainless Material
    • Fastening stainless steel parts to aluminum or steel can cause a type of corrosion known as a galvanic couple in some environments.

  • Additional Notes

    • Other sizes and quantities available by request | Dimensions for #9 diameter are independent of ASME B18.6.4

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
Drive Type:
Hex/Slotted
Fastener Head Height:
0.096 - 0.11 in.
Fastener Head Type:
Indented Hex
Fastener Head Width:
0.244 - 0.25 in.
Fastener Length:
2
Hardness:
RockweII C28-38
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Indent_Hex_Head_Slot_TS.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
3.6 in
Product Length:
3 in
Product Weight:
0.98 lbs
Product Width:
3 in
Screw Point Type:
Gimlet Point
Slot Depth:
0.052 - 0.066
Slot Width:
0.045 - 0.054
Sub Division:
Electrical-E H2
Thread Per Inch:
15
Thread Standard:
ASME B18.6.4
Washer Od:
0.322 - 0.348 in.
Washer Thickness:
0.019 - 0.031 IN
Width Across Corners:
0.272
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Type A Tapping Screw
Type2:
Type A Tapping Screw
Series:
JDS
Product Details:
Type A Tapping Screw
Product Material:
18-8 Stainless

Metallics JDS159SS – Frequently Asked Questions

1) Do these stainless tapping screws need a pilot hole in sheet metal?
The JDS159SS is a Type A tapping screw with a gimlet (sharp) point, so it starts in thin sheet metal and forms its own thread as it goes. Thread count is 15 per inch, which is the coarse spacing Type A uses for sheet metal and non-ferrous work. In heavier gauge or where you need accurate location, drill a pilot - the sharp point is not a self-drilling tip.
2) Will 18-8 stainless screws cause a problem if I fasten into aluminum or steel?
It can. Driving stainless into aluminum or steel creates a dissimilar-metal (galvanic) couple, and in wet, salty, or outdoor exposure that accelerates corrosion of the softer base metal. Indoors and dry it is generally a non-issue. If the connection is exposed, isolate it or use a fastener matched to the base metal.
3) Can I drive these #8 x 2 in. Metallics tapping screws with a hex driver, or do I need a screwdriver?
Either one. The head is an indented hex with a slot cut in it, so a 1/4 inch nut driver or a flat blade both work. Head width measures 0.244 to 0.25 in. across the flats and 0.272 across the corners, and the slot runs 0.045 to 0.054 wide by 0.052 to 0.066 deep. In an electrical box or panel where you cannot get a driver square on the head, the slot is the fallback.
4) Are these screws corrosion resistant enough for outdoor or damp electrical work?
They are solid 18-8 stainless, not a plated carbon steel screw, so there is no coating to wear through or scratch off during driving. That makes them a reasonable choice for exterior strut, enclosures, and damp locations. The caution is the base metal: stainless against aluminum or steel can set up a galvanic couple in wet environments.
5) What standards do the Metallics JDS tapping screws conform to?
Head and slot dimensions follow ASME B18.6.3-2010, and the thread form follows ASME B18.6.4. Hardness is Rockwell C28-38. One exception worth knowing on the JDS family: dimensions for the #9 diameter are independent of ASME B18.6.4. The screw is also flagged ARRA compliant and Buy American compliant, which matters on federally funded work.
6) Is a 2 inch screw length too long for mounting to sheet metal or thin panel?
At 2 inches of length, the #8 JDS159SS is meant for cases where the screw has to reach through spacers, wood blocking, or stacked material. On bare thin sheet you will have most of the shank sticking out the back, which is a snag hazard inside an enclosure. For single-thickness sheet metal step down to a shorter length in the same JDS indented hex slotted series.
7) How much does the hex head stand off the surface once it's driven?
Head height on the #8 JDS screw runs 0.096 to 0.11 in., and the indented hex includes an integral washer face with a 0.322 to 0.348 in. outside diameter and 0.019 to 0.031 in. thickness. That washer face spreads the load on sheet metal and slotted channel instead of pulling through, and it means you do not need to add a separate washer.
8) Can I get this Metallics indented hex tapping screw in another diameter or a smaller quantity?
Other sizes and quantities in this indented hex head slotted sharp point line are available by request. The JDS159SS itself is fixed at #8 diameter, 2 inch length, 1/4 inch hex head, 18-8 stainless.
How fast can I get the Metallics JDS159SS 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 JDS159SS come with a warranty?
Absolutely. The Metallics JDS159SS 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 JDS159SS?
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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