Metallics JFM133 1/4-20 x 5 in...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JFM133 1/4-20 x 5 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JFM133 1/4-20 x 5 in. Flat Head Slotted Machine Screws - Steel Zinc - Each

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Model: JFM133
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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1/4-20 x 5 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
    • Flat head with slotted Drive
    • 1/4-20 Diameter, 5" Length

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:
0.131 - 0.153 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.442 - 0.477 in.
Fastener Length:
5
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:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
5.21 lbs
Product Width:
4.5 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 JFM133 – Frequently Asked Questions

1) Will a 1/4-20 machine screw thread into my existing 1/4-20 tapped box or strut nut?
Yes. The Metallics JFM133 is cut to 20 threads per inch in UNC form to ANSI/ASME B1.1, so it mates with any standard 1/4-20 UNC tapped hole or nut, including the 1/4-20 threads common on strut channel nuts and enclosure hardware.
2) Is zinc plated steel okay for outdoor or damp locations?
Keep the JFM133 to dry interior work. It is zinc plated carbon steel (AISI 1006 to 1022 material), which handles indoor electrical and electronics assembly but will corrode in wet, washdown, or exterior exposure. For those openings use a stainless machine screw of the same 1/4-20 x 5 in. size instead.
3) Do these screws meet Buy American or ARRA requirements for a government job?
The JFM133 record carries ARRA Compliant and Buy American Compliant flags, with country of origin China. On a federally funded project confirm which standard your spec is written to, since those two designations are applied differently from job to job.
4) Will these flat head slotted screws meet a spec calling for ASME B18.6.3 machine screws?
Yes. Dimensions conform to ASME B18.6.3-1998 and threads to ANSI/ASME B1.1, which is the pair of standards most electrical and MRO specs cite for inch machine screws. That makes the head geometry and thread form interchangeable with any other B18.6.3 1/4-20 flat head screw on your drawing.
5) Does a 5 inch machine screw give me enough reach to go through a thick wall buildup into a device box?
Fastener length is 5 in. measured from the flat head bearing surface, since flat head screw length includes the head. That gives you about 5 in. of usable grip through drywall buildup, firring, or stacked plates before you run out of thread.
6) How much load will a 1/4-20 x 5 in. machine screw take in tension?
Minimum tensile strength is 1900 lb per screw, with hardness in the Rockwell B70 to B100 range. That is a standard low carbon machine screw, not a Grade 5 or Grade 8 bolt, so treat it as a fastening screw rather than a structural one.
7) How are these Metallics machine screws packaged, and what is the minimum I can buy?
They ship in a jar of 100 count, and 100 is the order minimum. Total packed weight is 5.21 lbs, so plan on one jar per order increment rather than loose pieces.
8) Should I use a machine screw or a self tapping screw for mounting into an enclosure?
A machine screw like the JFM133 needs a pre-tapped 1/4-20 hole or a matching nut, which is what you want in a factory tapped enclosure, strut nut, or threaded insert because it can be removed and reinstalled repeatedly. If the hole is unthreaded sheet metal, a machine screw will not hold and you want a self tapping or thread forming screw instead.
How fast can I get the Metallics JFM133 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 JFM133 come with a warranty?
Absolutely. The Metallics JFM133 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 JFM133?
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 JFM133 from ZenSupply?
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