Metallics JSTS50 8 x 1/4 in. P...
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Metallics JSTS50 8 x 1/4 in. Pan Head Slotted Tapping Screws - 18-8 Stainless - 100qty

Metallics JSTS50 8 x 1/4 in. Pan Head Slotted Tapping Screws - 18-8 Stainless - Each

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Model: JSTS50
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8 x 1/4 in. Pan Head Slotted Tapping Screws - 18-8 Stainless - 100qty

  • Features

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

  • 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 B18.6.3-2013
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.085 - 0.096 in.
Fastener Head Type:
Pan
Fastener Head Width:
0.256 - 0.27 in.
Fastener Length:
4-Jan
Field Application:
Electrical, Plumbing, Heating, Air Conditioning Industries
Language Code:
EN
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.25 lbs
Product Width:
3 in
Screw Point Type:
Gimlet Point
Slot Depth:
0.045 - 0.058
Slot Width:
0.045 - 0.054
Sub Division:
Electrical-E H2
Thread Per Inch:
15
Thread Standard:
ASME B18.6.4
Torsional Strength:
39 lb-in minimum
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Type A Tapping Screw
Type2:
Type A Tapping Screw
Series:
JSTS
Product Details:
Type A Tapping Screw
Product Material:
18-8 Stainless

Metallics JSTS50 – Frequently Asked Questions

1) Is it safe to use stainless tapping screws in aluminum enclosures or strut?
Watch for galvanic corrosion. Metallics states that fastening stainless steel parts to aluminum or steel can create a galvanic couple in some environments. Indoors and dry, the 18-8 stainless screws are usually fine; in wet, coastal, or washdown locations an isolating washer or a matched-metal screw is the better call.
2) Will a #8 pan head slotted screw sit flush enough under a cover plate?
No, a pan head stands proud. Head height on the JSTS50 runs 0.085 to 0.096 in. with a head width of 0.256 to 0.27 in., so it sits on top of the surface with a low rounded crown. If you need the fastener below the surface, specify a flat (countersunk) head instead.
3) How much torque can I put on these before the head strips?
Torsional strength on the JSTS50 tapping screw is rated 39 lb-in minimum. That is the twist the screw body will take before failure, and with a slotted drive your bit will cam out of the 0.045 to 0.054 in. wide slot well before then. Hand drivers or a clutch-set driver on a low setting are the right tools here.
4) Do these Metallics screws meet Buy American or ARRA requirements for a public job?
Metallics lists the JSTS50 as compliant for both ARRA and Buy American, with country of origin China. If your specification demands domestic melt and manufacture rather than the compliance flag, confirm that against the project documents before you submit.
5) What dimensional standard do these pan head tapping screws conform to?
Head geometry follows ASME B18.6.3-2013 and the thread follows ASME B18.6.4. That matters on a submittal where a fastener schedule calls out a standard, and it means head and thread dimensions are interchangeable with any other screw built to the same two specs. Metallics does note that #9 diameter dimensions fall outside ASME B18.6.4, but that does not apply to this #8.
6) How are these #8 stainless tapping screws packaged and what is the minimum I can order?
They ship in a jar, 100 count, and 100 is the order minimum. The jar weighs 0.25 lbs. It is a shelf-stock quantity for a van or a maintenance shop rather than a bulk box.
7) What trades actually use a #8 x 1/4 in. Type A tapping screw?
Metallics targets the JSTS50 at the electrical, plumbing, heating, and air conditioning trades. Typical use is attaching cover plates, nameplates, straps, and light brackets to sheet metal enclosures and ductwork where the material is thin and no nut can be reached behind it.
How fast can I get the Metallics JSTS50 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 JSTS50 come with a warranty?
Absolutely. The Metallics JSTS50 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 JSTS50?
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 JSTS50 from ZenSupply?
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