Metallics JFM100 1/4-20 x 3/4 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Metallics JFM100 1/4-20 x 3/4 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JFM100 1/4-20 x 3/4 in. Flat Head Slotted Machine Screws - Steel Zinc - Each

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Model: JFM100
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$50.21
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1/4-20 x 3/4 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

  • 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.

  • Features

    • Zinc yellow screws are popular in electronics applications.
    • Steel Zinc Material
    • 1/4-20 Diameter, 3/4" Length
    • Flat head with slotted Drive

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ASME B18.6.3-1998
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.131 - 0.153 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.442 - 0.477 in.
Fastener Length:
4-Mar
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
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:
JR
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
1.06 lbs
Product Width:
3 in
Slot Depth:
0.046 - 0.07
Slot Width:
0.064 - 0.075
Sub Division:
Electrical-E H2
Tensile Strength:
1900 lb minimum
Thread Per Inch:
20
Thread Standard:
ANSI/ASME B1.1
Thread Type:
UNC
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
FM and FMP
Product Finish:
Zinc
Product Details:
Machine Screw
Product Material:
Steel Zinc

Metallics JFM100 – Frequently Asked Questions

1) Will a 1/4-20 machine screw thread into a standard 1/4-20 tapped box or strut nut?
Yes. The Metallics JFM100 is a 1/4-20 UNC screw, 20 threads per inch, cut to ANSI/ASME B1.1. That is the same coarse thread used on 1/4-20 tapped enclosure bosses, channel nuts and spring nuts, so it runs into any 1/4-20 UNC tapped hole or nut.
2) Are these Metallics machine screws Buy American or ARRA compliant for a government job?
No on both counts. The JFM100 1/4-20 flat head slotted machine screw is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. If your spec carries a domestic sourcing requirement, this is not the fastener to submit.
3) How much load will a 1/4-20 zinc plated steel machine screw take?
Rated at 1900 lb minimum tensile, with the steel running Rockwell B70 to B100 and made from AISI 1006 to 1022 low carbon steel. That is a general purpose fastener for enclosures, plates, covers and device mounting, not a structural or high strength bolt, so don't substitute it where a graded hex bolt is called out.
4) Is zinc plated steel okay for outdoor or damp locations?
These are steel with a zinc finish, which is a plated coating for dry indoor service, panels, junction boxes, device mounting and the like. Zinc plating gives limited corrosion protection and will eventually rust in wet, washdown or coastal exposure. For those openings go to a stainless machine screw in the same 1/4-20 x 3/4 in. size.
5) Is a slotted flat head machine screw the right pick for electrical panel work, or should I use a different drive?
Slotted is still the common field drive for electrical, plumbing and HVAC work because one flat blade on a multi-tool or a lineman's screwdriver covers everything, and the JFM100 is built for exactly those trades. The tradeoff is that slots cam out under power drivers. If you're running screws with a drill or impact, pick a Phillips or combination head machine screw in the same 1/4-20 x 3/4 in. size instead.
6) How are these 1/4-20 x 3/4 in. machine screws packaged and what is the minimum order?
They come in a jar of 100 pieces, and 100 is the order minimum, so the smallest buy is one jar. Jar weight is 1.06 lbs. Handy for a van or a shop drawer rather than loose counts off a bin.
How fast can I get the Metallics JFM100 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 JFM100 come with a warranty?
Absolutely. The Metallics JFM100 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 JFM100?
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 JFM100 from ZenSupply?
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