Metallics JBSC51612 5/16-18 x ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.70
$0.70
Metallics JBSC51612 5/16-18 x 1/2 in. Socket Button Head Hex Cap Screws - Alloy Steel Black - 100qty

Metallics JBSC51612 5/16-18 x 1/2 in. Socket Button Head Hex Cap Screws - Alloy Steel Black - Each

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Model: JBSC51612
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.70
$0.70
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5/16-18 x 1/2 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

    • Screws are supplied plain.
    • The are not recommended for critical, high-strength applications.
    • Alloy Steel Black Material
    • 5/16-18 Diameter, 1/2" Length
    • 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:
0.152 - 0.166 in.
Fastener Head Type:
Socket
Fastener Head Width:
0.527 - 0.547 in.
Fastener Length:
2-Jan
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Hardness:
Rockwell C39-44
Hex Size:
16-Mar
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:
1.4 lbs
Product Width:
3 in
Slot Depth:
0.105
Sub Division:
Electrical-E H2
Tensile Strength:
7300 lb minimum
Thread Per Inch:
18
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 JBSC51612 – Frequently Asked Questions

1) What thread does the Metallics JBSC51612 button head cap screw use, and will it thread into a standard 5/16-18 tapped hole?
It's a 5/16-18 UN thread cut to ANSI/ASME B1.1, 18 threads per inch, so it threads into any standard 5/16-18 tapped hole or nut. Length is 1/2 inch, which means short grip: figure on about 1/2 inch of total material plus thread engagement, not a thick stack-up.
2) Is this 5/16-18 socket button head screw strong enough for a structural or high-strength connection?
No. The Metallics JBSC51612 is alloy steel hardened to Rockwell C39-44 with a 7300 lb minimum tensile, which handles general equipment and mounting work, but it is not recommended for critical, high-strength applications. For structural or safety-critical joints, specify a fastener rated for that duty instead of a button head.
3) Will a 5/16-18 socket button head screw to ASME B18.3 drop into an existing button head application?
Yes, if the hole and tap match. The JBSC51612 is dimensioned to ASME B18.3-2012, the standard that governs socket cap screw head and socket geometry, so head diameter, head height and hex socket match any other B18.3 5/16-18 button head screw of the same length. Swapping one in does not change your drive tool or clearance hole.
4) Are Metallics JBSC51612 cap screws Buy American or ARRA compliant for a government job?
No. These screws are not Buy American compliant and are not ARRA compliant; country of origin is listed as multiple. If your spec carries a domestic sourcing requirement, this part will not satisfy it.
5) What size hex key drives a 5/16-18 socket button head cap screw?
The JBSC51612 takes a hex (Allen) key, driven from an internal socket in the button head. The socket depth is 0.105 inch, so use a key in good condition and seat it fully; a worn key in a shallow button-head socket is the usual cause of a stripped recess.
6) Does the black finish on these alloy steel cap screws protect against corrosion outdoors?
Treat the black alloy steel as an indoor, dry-location fastener. The screws are supplied plain, so the finish is cosmetic rather than a plated corrosion barrier. For wet exteriors or damp mechanical rooms, go to a zinc-plated or stainless cap screw.
7) How are these Metallics button head cap screws packaged, and what is the minimum order?
They ship in a jar of 100 pieces, and the jar is the minimum order quantity. Stated weight is 1.4 lbs. That makes it a van-stock or shop-bin item rather than a count-out-five purchase.
8) What trades actually use these black socket button head cap screws?
Metallics lists them for the electrical, plumbing, heating and air conditioning industries, which is where they earn their keep: mounting panels, brackets, enclosure covers, strut accessories and equipment housings where you want a low rounded head and a hex drive rather than a slotted or hex bolt head.
9) Can I get this socket button head screw in another length or diameter?
Other sizes and quantities in the Metallics BSC socket button head line are available by request. The stocked configuration here is 5/16-18 x 1/2 inch in black alloy steel, 100 per jar.
How fast can I get the Metallics JBSC51612 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 JBSC51612 come with a warranty?
Absolutely. The Metallics JBSC51612 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 JBSC51612?
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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