Metallics JFMP101 1/4-20 x 1 i...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.39
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Metallics JFMP101 1/4-20 x 1 in. Flat Head Phillips Machine Screws - Steel Zinc - 100qty

Metallics JFMP101 1/4-20 x 1 in. Flat Head Phillips Machine Screws - Steel Zinc - Each

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Model: JFMP101
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$50.39
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1/4-20 x 1 in. Flat Head Phillips Machine Screws - Steel Zinc - 100qty

  • Features

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

  • 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:
Phillips
Driver Size:
#3
Fastener Head Height:
0.131 - 0.153 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.442 - 0.477 in.
Fastener Length:
1
Gaging Diameter:
0.424
Hardness:
Rockwell B70-B100
Language Code:
EN
Material Standard:
AISI 1006 - 1022
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Phillips Recess Depth:
0.16
Phillips Recess Diameter:
0.276
Phillips Recess Width:
0.036
Product Group:
Fasteners
Product Height:
3.6 in
Product Length:
3 in
Product Weight:
1.3 lbs
Product Width:
3 in
Protrusion Gaging Diameter:
0.029 - 0.050 Above
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 JFMP101 – Frequently Asked Questions

1) Will a 1/4-20 machine screw thread into a standard 1/4-20 tapped hole or nut?
Yes. The Metallics JFMP101 is cut to 20 threads per inch in UNC coarse thread per ANSI/ASME B1.1, so it mates with any standard 1/4-20 UNC tapped hole, nut, or strut channel nut. Gaging diameter is 0.424 inch.
2) Will the flat head sit flush in a countersunk hole, and how deep does it need to be?
The flat head on the JFMP101 is made to sit flush in an 82 degree countersink. Head width runs 0.442 to 0.477 inch and head height 0.131 to 0.153 inch, so the countersink needs to be at least that wide and deep for a true flush finish. Head geometry follows ASME B18.6.3-1998.
3) Are these zinc plated screws OK for outdoor or damp electrical work?
The JFMP101 is zinc plated carbon steel (AISI 1006 to 1022). Zinc plating handles indoor and dry locations, panel and device work, and occasional damp exposure, but it is not a stainless screw. For wet locations, washdown areas, coastal exposure, or anywhere corrosion is a design concern, specify a stainless 18-8 machine screw instead.
4) Machine screw or self-tapping screw for mounting into an electrical enclosure?
A machine screw like the JFMP101 needs an existing 1/4-20 tapped hole, a nut, or a channel nut behind it, because the thread is a straight 20 TPI UNC machine thread with a blunt end, not a point that cuts its own thread. If the hole is unthreaded sheet metal, use a self-tapping or thread-cutting screw instead, or tap the hole first.
5) How much grip length do I get with a 1 inch flat head screw?
Flat head screws are measured overall, from the top of the head to the point, so the full 1 inch length of the JFMP101 is usable grip once the head is seated flush. Subtract your material thickness plus countersink to work out how much thread lands in the tapped hole or nut.
6) Do these screws meet Buy American or ARRA requirements on a government job?
Metallics lists the JFMP101 as both ARRA compliant and Buy American compliant, with country of origin China. If your contract clause requires domestic melt and manufacture rather than compliance under the broader provisions, verify the clause language against those two designations before you submit.
7) Can I use a flat head Phillips machine screw where the spec calls out ASME B18.6.3?
Yes. Head and recess dimensions on the JFMP101 are built to ASME B18.6.3-1998, the inch machine screw standard, and the thread to ANSI/ASME B1.1. Protrusion gaging runs 0.029 to 0.050 above, so it gages within the standard's flush-seating tolerance.
8) How are these Metallics machine screws packaged and what is the minimum I can buy?
They ship in a jar of 100, which is the order minimum (100 count). Jar weight is 1.3 lbs. The jar format is handy for a van shelf or a shop bin where you are pulling a handful at a time rather than opening a bulk box.
How fast can I get the Metallics JFMP101 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 JFMP101 come with a warranty?
Absolutely. The Metallics JFMP101 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 JFMP101?
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 JFMP101 from ZenSupply?
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