Metallics JMHTB812 Bolts M8 x ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.86
$1.93
Metallics JMHTB812 Bolts M8 x 12 C8.8 Hx Tap Blt St-zn (Jar 100)

Metallics JMHTB812 Bolts M8 x 12 C8.8 Hx Tap Blt St-zn (Jar 100)

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Model: JMHTB812
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.86
$1.93
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Bolts M8 x 12 C8.8 Hx Tap Blt St-zn (Jar 100)

  • Additional Notes

    • Other sizes and quantities available by request

  • Features

    • Used to mount motor to machinery. Also popular in automotive and truck repair
    • A Hex headed extrnally threaded fastener with washer-face beneath the head, a metric thread pitch, made from medium carbon steel and heat-treated. The threads on the shank extended all of the way to directly beneath the head.

Manufacturer Resources

Product Specs

Arra Compliant:
N
Buy American Compliant:
No
Division:
Electrical H1
Fastener Head Type:
Hex
Fastener Head Width:
12.73 - 13 in.
Fastener Height:
5.15 - 5.45
Fastener Length:
12mm
Fastener Width:
14.38
Field Application:
Electrical, Plumbing, Heating, Air Conditioning Industries
Grade:
8.8
Hardness:
Rockwell C22-32
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Hd_Metric_Tap_Bolt_St-Zn.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Outside Diameter:
7.78 - 8 IN
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
1016 g
Product Width:
76.2 MM
Sub Division:
Electrical-E H2
Tensile Strength:
11600 psi minimum
Thread Direction:
Right Hand
Thread Pitch:
1.25
Thread Type:
UNC
Yield Strength:
92800 psi minimum
Department:
Electrical
Product Subgroup:
Bolts
Product Type:
Hexagonal Bolt
Type2:
Hexagonal Bolt
Series:
MHTB and JMHTB
Product Finish:
Zinc
Product Details:
Hexagonal Bolt
Product Material:
Steel

Metallics JMHTB812 – Frequently Asked Questions

1) Is the M8 x 12 Metallics tap bolt threaded all the way to the head?
Yes. The JMHTB812 is a tap bolt, so the thread runs the full length of the 12mm shank right up to underneath the hex head, and the head has a washer face beneath it. With a bolt this short that matters: there is no unthreaded grip, so it can bottom into a tapped hole or take a nut anywhere along its length.
2) What thread does the M8 Metallics hex tap bolt take, and will a standard M8 nut fit it?
It is an M8 with a 1.25 mm thread pitch, right hand, which is the standard coarse metric pitch for M8. Any standard coarse M8 nut or M8 x 1.25 tapped hole will accept it. Fine pitch M8 x 1.0 threads will not.
3) Are Metallics JMHTB812 tap bolts Buy American or ARRA compliant for a government job?
No. The JMHTB812 is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your project carries a domestic sourcing requirement, this is not the fastener to specify.
4) How strong is a Class 8.8 hex tap bolt compared with a plain unhardened bolt?
The JMHTB812 is a Class 8.8 bolt in medium carbon steel, heat treated, with a yield strength of 92,800 psi minimum and a hardness of Rockwell C22-32. That is a structural-duty fastener rather than a plain low-carbon bolt, which is why it gets used for motor mounting and vehicle repair where the joint is loaded and vibrating.
5) How many M8 x 12 tap bolts come in a jar, and can I buy fewer?
They ship in a jar of 100, and 100 in a jar is the order minimum, so that is the smallest quantity. Metallics does offer other sizes and quantities in the MHTB and JMHTB tap bolt series by request.
6) Is a zinc plated steel tap bolt good enough for outdoor or damp mechanical room use?
The finish is zinc over steel, which handles indoor and sheltered mechanical room conditions well and resists handling corrosion. It is not stainless, so for direct weather exposure, wet roof curbs, or washdown areas you want a stainless or hot dip galvanized fastener instead.
7) What are M8 x 12 hex tap bolts typically used for on a mechanical job?
The common use is bolting motors to machinery, and they are also widely used in automotive and truck repair. Metallics lists them for electrical, plumbing, heating and air conditioning work, so they cover equipment mounting, pump and blower feet, and panel or bracket fastening where the hole is tapped metric.
8) How much does a jar of 100 M8 x 12 tap bolts weigh?
A full jar comes in at 1016 g, a little over two pounds, which is useful if you are packing a service van or batching hardware for multiple install kits.
How fast can I get the Metallics JMHTB812 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 JMHTB812 come with a warranty?
Absolutely. The Metallics JMHTB812 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 JMHTB812?
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 JMHTB812 from ZenSupply?
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