Metallics JFM77 5/16-18 x 1-1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JFM77 5/16-18 x 1-1/2 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JFM77 5/16-18 x 1-1/2 in. Flat Head Slotted Machine Screws - Steel Zinc - Each

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Model: JFM77
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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 1-1/2 in. Flat Head Slotted Machine Screws - Steel Zinc - 100qty

  • Features

    • Zinc yellow screws are popular in electronics applications.
    • Steel Zinc Material
    • Flat head with slotted Drive
    • 5/16-18 Diameter, 1-1/2" Length

  • 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:
0.165 - 0.191 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.556 - 0.597 in.
Fastener Length:
1/1/02
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:
4.57 in
Product Length:
3 in
Product Weight:
2.73 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 JFM77 – Frequently Asked Questions

1) Will a 5/16-18 machine screw thread into a standard 5/16 coarse tapped hole or nut?
Yes. The Metallics JFM77 is cut to 18 threads per inch in UNC (coarse) form to ANSI/ASME B1.1, so it mates with any standard 5/16-18 tapped hole, nut, or strut channel nut. It will not thread into a 5/16-24 fine-thread hole.
2) Does the Metallics JFM77 machine screw meet Buy American or ARRA requirements on a public project?
The JFM77 is flagged compliant for both ARRA and Buy American purposes. Country of origin is China, so if your contract carries a domestic melt-and-manufacture clause rather than a Buy American compliance flag, verify that distinction against your spec before submitting.
3) Are these zinc plated screws OK outdoors or in a damp location?
The JFM77 is carbon steel with a zinc plated finish, which handles dry indoor and protected locations well. Zinc plating is a sacrificial coating, not a marine finish, so for wet, coastal, or corrosive environments move to a 300 series stainless machine screw in the same 5/16-18 x 1-1/2 in. size.
4) Do I have to buy a full jar of these, or can I get a few?
They ship in a jar with a 100 count minimum, so the smallest order is one jar of 100 pieces. Total packed weight is 2.73 lbs.
5) What is the difference between a machine screw like this and a self tapping sheet metal screw?
The JFM77 is a machine screw: a uniform 5/16-18 UNC thread running the full length, meant to engage an existing tapped hole or a nut. It will not cut its own thread in sheet metal. If you are fastening into unthreaded sheet, use a self drilling or sheet metal screw; if you are bolting through a clearance hole, pair this screw with a 5/16-18 nut.
How fast can I get the Metallics JFM77 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 JFM77 come with a warranty?
Absolutely. The Metallics JFM77 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 JFM77?
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 JFM77 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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