Metallics JFM4 8-32 x 1/4 in. ...
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Metallics JFM4 8-32 x 1/4 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JFM4 8-32 x 1/4 in. Flat Head Slotted Machine Screws - Steel Zinc - Each

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Model: JFM4
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8-32 x 1/4 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

  • Features

    • Steel Zinc Material
    • 8-32 Diameter, 1/4" Length
    • Flat head with slotted Drive
    • Zinc yellow screws are popular in electronics applications.

  • Additional Notes

    • Other sizes and quantities available by request | Hardness and tensile strength standards are offered as guides only for stainless machine screws. There is currently no national standard for these performance requirements for stainless machine screws.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
C
Buy American Compliant:
C
Dimensional Standard:
ASME B18.6.3-1998
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.084 - 0.1 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.285 - 0.312 in.
Fastener Length:
4-Jan
Hardness:
Rockwell B70-B100
Language Code:
EN
Material Standard:
AISI 1006 - 1022
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Flat_Head_Mach_Screw.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Screws
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.2 lbs
Product Width:
3 in
Slot Depth:
0.029 - 0.045
Slot Width:
0.045 - 0.054
Sub Division:
Electrical-E H2
Tensile Strength:
850 lb minimum
Thread Per Inch:
32
Thread Standard:
ANSI/ASME B1.1
Thread Type:
UNC
Department:
Fasteners
Product Subgroup:
Machine Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
FM and FMP
Product Finish:
Zinc
Product Details:
Machine Screw
Product Material:
Steel Zinc

Metallics JFM4 – Frequently Asked Questions

1) Will the Metallics JFM4 8-32 machine screw thread into a standard device box or switch plate ear?
Yes. The JFM4 is an 8-32 UNC thread with 32 threads per inch, cut to ANSI/ASME B1.1, which is the same thread used on device boxes, switch and receptacle mounting ears, and cover plates. At 1/4 inch long it is short, so it suits tapped holes and thin stackups rather than anything that needs to reach through a plaster ring or extension.
2) Is this screw strong enough for a structural or load-bearing connection?
No. The JFM4 is a low carbon steel machine screw from AISI 1006 to 1022 stock, hardness Rockwell B70 to B100, rated at 850 lb minimum tensile. That is fine for mounting devices, plates, covers, brackets and enclosure hardware, but it is not a graded structural fastener. For a load path on the drawing, specify a graded cap screw or bolt instead.
3) Do these machine screws meet Buy American or ARRA requirements on a public job?
Metallics lists the JFM4 as ARRA compliant and Buy American compliant, with country of origin China. Public-works specs read those two clauses differently depending on the funding source, so match the compliance language on your particular contract to those values before you submit.
4) Is a 1/4 inch long 8-32 screw long enough for my application?
At 1/4 inch of overall length with a flat head, the usable thread engagement is short, so it works where the screw lands in a tapped hole or a thin plate and nothing is stacked behind it. Add a washer, a gasket or a second plate and you will run out of thread. Metallics offers other lengths in the FM and FMP series if you need more reach.
5) How is the Metallics JFM4 packaged, and what is the minimum order?
The JFM4 comes in a jar of 100, and 100 count is the order minimum. Figure about 0.2 lbs for the jar. Handy for a truck stock bin or a shop drawer rather than a single-screw replacement.
6) Will zinc plated steel machine screws hold up outdoors or in a damp mechanical room?
These are steel with a zinc finish, which is a dry-interior plating. In wet, washdown, coastal or chemically aggressive locations the plating gives up and the steel rusts, which also makes the slot hard to back out later. For those openings move to a stainless machine screw in the same 8-32 x 1/4 size.
7) What dimensional standard do these flat head machine screws conform to?
Head and body geometry follow ASME B18.6.3-1998, the standard for inch-series machine screws, and the threads follow ANSI/ASME B1.1. If your submittal calls for B18.6.3 flat head slotted screws, the JFM4 answers it.
How fast can I get the Metallics JFM4 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 JFM4 come with a warranty?
Absolutely. The Metallics JFM4 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 JFM4?
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 JFM4 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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