Metallics JFM65 5/16-18 x 1 in...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JFM65 5/16-18 x 1 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JFM65 5/16-18 x 1 in. Flat Head Slotted Machine Screws - Steel Zinc - Each

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Model: JFM65
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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5/16-18 x 1 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

    • Flat head with slotted Drive
    • Zinc yellow screws are popular in electronics applications.
    • Steel Zinc Material
    • 5/16-18 Diameter, 1" Length

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:
0.165 - 0.191 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.556 - 0.597 in.
Fastener Length:
1
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:
3.6 in
Product Length:
3 in
Product Weight:
2.26 lbs
Product Width:
3 in
Slot Depth:
0.058 - 0.088
Slot Width:
0.072 - 0.084
Sub Division:
Electrical-E H2
Tensile Strength:
3150 lb minimum
Thread Per Inch:
18
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 JFM65 – Frequently Asked Questions

1) Will a 5/16-18 flat head machine screw sit flush in a countersunk hole?
Yes, that is what the flat head is for. The Metallics JFM65 has a flat head measuring 0.556 to 0.597 in. across with a head height of 0.165 to 0.191 in., so it seats fully into an 82 degree countersink and finishes level with the surface. If your plate or enclosure is not countersunk, the head will stand proud and you want a round or pan head instead.
2) What thread does the Metallics JFM65 machine screw take, and will it run into a 5/16-18 tapped hole?
It is a 5/16-18 UNC thread, 18 threads per inch, made to ANSI/ASME B1.1. That means it threads straight into any standard 5/16-18 tapped hole or standard 5/16-18 hex nut. It will not fit a 5/16-24 fine thread hole.
3) Is a zinc plated steel machine screw okay for outdoor or damp locations?
The JFM65 is zinc plated carbon steel, which is a mild indoor corrosion coating. It is fine for panels, enclosures, and device mounting in dry interior locations. For wet, exterior, coastal, or washdown work, go to a stainless 18-8 machine screw in the same 5/16-18 x 1 in. size instead.
4) Will these machine screws qualify on a Buy American or ARRA funded job?
No. The JFM65 is marked not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If you are working a federally funded project with domestic sourcing requirements, you need a domestically produced fastener instead.
5) How many screws come in a jar, and is there an order minimum?
They ship in a jar with an order minimum of 100, so a jar is the buying unit rather than a single screw. Fine for a shop or truck stock item where you are pulling a few at a time across many jobs.
6) Does the Metallics JFM65 meet a recognized dimensional spec so it interchanges with other brands?
It is made to ASME B18.6.3-1998 for head and slot dimensions and ANSI/ASME B1.1 for the thread. Head width, head height, slot width of 0.072 to 0.084 in. and slot depth of 0.058 to 0.088 in. all fall inside those standard ranges, so it drops in anywhere another standard 5/16-18 x 1 in. slotted flat head was used.
7) Do nuts or washers come with the Metallics JFM65 screws?
No, the jar is screws only. If you are through-bolting rather than threading into a tapped hole, order 5/16-18 hex nuts and flat washers separately. The flat head does not want a washer under it in a countersink, so any washer goes on the nut side.
8) What trades actually use a 5/16-18 x 1 in. slotted flat head machine screw?
Metallics lists this one for electrical, plumbing, and HVAC work. Typical uses are mounting straps and brackets to tapped strut or channel, fixing device and cover plates, and securing components inside panels and enclosures where the head has to finish flush. The 5/16-18 is on the heavier end of machine screw sizes, so it is bracket and support work rather than small device screws.
How fast can I get the Metallics JFM65 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 JFM65 come with a warranty?
Absolutely. The Metallics JFM65 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 JFM65?
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 JFM65 from ZenSupply?
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