Metallics JBSC1438 1/4-20 x 3/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.33
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Metallics JBSC1438 1/4-20 x 3/8 in. Socket Button Head Hex Cap Screws - Alloy Steel Black - 100qty

Metallics JBSC1438 1/4-20 x 3/8 in. Socket Button Head Hex Cap Screws - Alloy Steel Black - Each

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Model: JBSC1438
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.33
$0.33
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1/4-20 x 3/8 in. Socket Button Head Hex Cap Screws - Alloy Steel Black - 100qty

  • Additional Notes

    • Other sizes and quantities available by request | 8% minimum (applies to machined specimens of lengths at least 4D where D equals the nominal diameler of the screw) | 35% minimum (applies to machined specimens) | Screws must be of a length equal to or greater than 3 diameters to be subject to tensile testing | Class 3A threads over 1" diameter screws are Class 2A threads

  • Features

    • The are not recommended for critical, high-strength applications.
    • Screws are supplied plain.
    • 1/4-20 Diameter, 3/8" Length
    • Alloy Steel Black Material
    • Button Socket head with Hex Drive

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ASME B18.3-2012
Division:
Electrical H1
Drive Type:
Hex
Fastener Head Height:
0.122 - 0.132 in.
Fastener Head Type:
Socket
Fastener Head Width:
0.419 - 0.437 in.
Fastener Length:
8-Mar
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Hardness:
Rockwell C39-44
Hex Size:
May-32
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Socket_Head_Button_Screw.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.93 lbs
Product Width:
3 in
Slot Depth:
0.087
Sub Division:
Electrical-E H2
Tensile Strength:
4430 lb minimum
Thread Per Inch:
20
Thread Standard:
ANSI/ASME B1.1
Thread Type:
UN
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Cap Screw
Type2:
Cap Screw
Series:
BSC
Product Finish:
Black
Product Details:
Cap Screw
Product Material:
Alloy Steel Black

Metallics JBSC1438 – Frequently Asked Questions

1) Will a 1/4-20 x 3/8 in. button head cap screw sit flush in a counterbore?
No. Button head screws like the Metallics JBSC1438 are designed to sit proud of the surface, with a domed head 0.122 to 0.132 in. tall and 0.419 to 0.437 in. across. If you need the head below the surface, you want a flat socket head screw in a chamfered counterbore instead. The button head's wide low profile is for applications where you want minimal protrusion and a larger bearing surface against sheet metal or soft material, not a flush finish.
2) Do these Metallics black alloy steel screws have a corrosion-resistant coating for outdoor or damp locations?
No. The JBSC1438 screws are supplied plain in black alloy steel, which is a bare finish with no plating for corrosion protection. Keep them to dry interior work, inside enclosures, panels, and mechanical rooms. For wet locations, washdown areas, or anything exterior, specify a plated or stainless fastener instead.
3) Are Metallics JBSC1438 cap screws Buy American or ARRA compliant for a government job?
No on both counts. The JBSC1438 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your project carries a domestic sourcing requirement, this part will not clear it and you need a domestically produced fastener instead.
4) What size hex key do I need for the Metallics JBSC1438 button head cap screw?
The JBSC1438 takes a hex drive, and the socket depth is 0.087 in. Head width runs 0.419 to 0.437 in. with a head height of 0.122 to 0.132 in., so a standard 1/4-20 button head wrench engages fully without bottoming out. Keep a clean key in it, the shallow socket on button heads strips faster than a cap screw socket if the wrench is worn.
5) Is the JBSC1438 sold individually or do I have to buy a full jar?
These ship as a jar of 100, which is the order minimum. If you need another size or a different count, Metallics lists other sizes and quantities as available by request.
6) What thread standard do Metallics BSC socket button head cap screws meet?
Threads are UN form at 20 threads per inch on the 1/4 in. diameter, made to ANSI/ASME B1.1, and the screw dimensions follow ASME B18.3-2012. That means it mates with any standard 1/4-20 UNC tapped hole or nut, so it drops into existing 1/4-20 prep without rethreading.
7) What trades use these button head socket cap screws most?
Metallics lists the BSC series for the electrical, plumbing, heating and air conditioning industries. In practice that is panel and enclosure covers, equipment and bracket mounting, strut and channel accessories, and unit assembly work where you want a low rounded head that will not snag and will not need a counterbore cut for it.
How fast can I get the Metallics JBSC1438 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 JBSC1438 come with a warranty?
Absolutely. The Metallics JBSC1438 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 JBSC1438?
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
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