Metallics JMSHC258 M2.5 x 8mm ...
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$50.37
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Metallics JMSHC258 M2.5 x 8mm Metric Cap Head Hex Cap Screws - Steel Black - Each

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Model: JMSHC258

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

$50.37
$0.37
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M2.5 x 8mm Metric Cap Head Hex Cap Screws - Steel Black - 100qty

  • Additional Notes

    • METRIC | Other sizes and quantities available by request

  • Features

    • Metric Class 12.9 socket cap screws are usually supplied with a plain, black finish
    • Socket head with Hex Drive
    • M2.5 Diameter, 8mm" Length
    • Steel Black Material
    • Supplies greater tensile strength than equivalent sizes of Grade-5 or Grade-8 hex head cap screws while requiring less surface area or counterbore since the fastener is intenally wrenched.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ISO 4742
Division:
Electrical H1
Drive Type:
Hex
Fastener Head Height:
2.36 - 2.5 in.
Fastener Head Type:
Socket
Fastener Head Width:
4.32 - 4.68 in.
Fastener Length:
8mm
Grade:
12.9
Hardness:
Rockwell C39-44
Language Code:
EN
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Fasteners
Slot Depth:
1.1
Socket Size Across Corners:
2.3
Socket Size Across Flats:
2.020 - 2.045
Sub Division:
Electrical-E H2
Tensile Strength:
1220 N/mm2 minimum
Thread Pitch:
0.45
Wall Thickness:
0.85
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Cap Screw
Type2:
Cap Screw
Series:
MSHC
Product Finish:
Black
Product Details:
Cap Screw
Product Material:
Steel Black

Metallics JMSHC258 – Frequently Asked Questions

1) What thread pitch does the M2.5 Metallics cap screw have, and will it match a standard M2.5 tapped hole?
Pitch is 0.45mm, which is the standard coarse M2.5 thread. It will mate with any standard M2.5 x 0.45 tapped hole or nut. Thread length overall is 8mm, so check your engagement depth against the thickness of the parts you are joining.
2) Is a Class 12.9 socket cap screw stronger than a Grade 8 hex bolt?
Yes. Metric Class 12.9 carries a minimum tensile strength of 1220 N/mm2 and a hardness of Rockwell C39-44, which is above equivalent sizes of Grade 5 or Grade 8 hex head cap screws. Because it is internally wrenched, you also get that strength in less surface area or a smaller counterbore than a hex head of the same diameter needs.
3) Do these screws qualify for a Buy American or ARRA-funded project?
No. The JMSHC258 is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. For federally funded work carrying domestic-sourcing requirements, you need a domestically produced fastener instead.
4) Is this a socket head cap screw or a hex head bolt? The name says both.
It is a socket head cap screw with a hex drive, part number JMSHC258. The head is a cylindrical socket head that you drive with an Allen key down into the recess, not an external hex you put a wrench on. That is what lets it sit in a counterbore flush with the surrounding surface.
5) Is the black finish on these M2.5 cap screws a corrosion coating or will they rust outdoors?
The finish is plain black on black steel, which is how Class 12.9 socket cap screws are normally supplied. That is a mill finish, not a plated or weather-resistant coating, so these belong in dry interior work, enclosures, panels, and machinery. For wet or exterior locations, choose a plated or stainless fastener instead.
6) How do these Metallics M2.5 cap screws come packaged, and is there a minimum order?
They ship in a jar, with an order minimum of 100 count. So the buying unit is a 100-piece jar rather than loose pieces, which suits panel builders and MRO stock rooms carrying small metric fasteners on the shelf.
7) What standard do these metric socket cap screws conform to?
Dimensionally they are built to ISO 4742. If a drawing or assembly spec calls out an ISO metric socket head cap screw in M2.5, the head and socket geometry on the JMSHC258 is to that standard.
8) Can I get this M2.5 socket cap screw in a longer length or a bigger quantity?
Yes. The JMSHC258 is the M2.5 x 8mm in the Metallics MSHC series, and other sizes and quantities are available by request, so if you need a longer screw for deeper stack-up or a larger pack for a production run, ask for it against the same series.
How fast can I get the Metallics JMSHC258 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 JMSHC258 come with a warranty?
Absolutely. The Metallics JMSHC258 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 JMSHC258?
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 JMSHC258 from ZenSupply?
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