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Bolts 7/8-9 x 2-1/2 Hx Tap Blt St-zn (Box 25)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Height:
- 37/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 1.269 - 1.312 in.
- Fastener Height:
- 0.531 - 0.604
- Fastener Length:
- 2/1/02
- Fastener Width:
- 1.447 - 1.516
- Hardness:
- Rockwell B69-B100
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Tap_Bolt_St-Zn_and_18-8_SS.pdf
- Order Minimum Imperial:
- 25
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Box
- Product Group:
- Fasteners
- Product Height:
- 6 in
- Product Length:
- 7.25 in
- Product Weight:
- 17.5 lbs
- Product Width:
- 6.25 in
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 60000 psi minimum
- Thread Per Inch:
- 9
- Thread Standard:
- IFI-199 (2014)
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Tap Bolt
- Type2:
- Hexagonal Tap Bolt
- Series:
- HTB, JHTB, and JSHTB
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Tap Bolt
- Product Material:
- Steel
Metallics HTB106 – Frequently Asked Questions
1) What thread size and length is the Metallics HTB106 hex tap bolt?
The HTB106 is a 7/8-9 x 2-1/2 inch hex tap bolt, so 7/8 inch diameter with 9 threads per inch (standard UNC coarse for that diameter) and 2-1/2 inches of length. Being a tap bolt it is threaded full length, which is what you want when you are threading into a tapped hole or a nut without a grip section.
2) Is this hex tap bolt strong enough for structural steel connections?
Tensile strength is 60,000 psi minimum with hardness Rockwell B69-B100, which is commercial-grade (Grade 2 class) steel. That is fine for general equipment mounting, strut, hangers, and electrical support work. For structural steel bolted connections your drawings will usually call for a higher-strength bolt, so check the spec on the detail before substituting this one.
3) Do these bolts qualify for a Buy American or ARRA funded project?
Metallics lists the HTB106 as both ARRA compliant and Buy American compliant, with country of origin China. If your contract runs under strict domestic-content Buy America rules rather than ARRA, verify which standard the specification cites before you commit the quantity.
4) Can these zinc plated steel bolts be used outdoors or in damp locations?
The HTB106 is zinc plated carbon steel. Zinc handles indoor and sheltered conditions and incidental moisture, but in direct weather, coastal air, or wet process areas it will eventually corrode. For those spots step up to a stainless or hot dip galvanized tap bolt of the same 7/8-9 x 2-1/2 size.
5) How many bolts come in a box of Metallics HTB106?
They ship 25 to a box, and 25 count is also the order minimum. Nuts and washers are not part of the pack, so order those separately in 7/8-9 to match.
6) What is the difference between a hex tap bolt and a standard hex cap screw?
A hex tap bolt is threaded the full length of the shank, while a hex cap screw has an unthreaded grip under the head. Full thread, as on the 2-1/2 inch HTB106, lets you vary the grip depth in a tapped hole or stack washers and shims without running out of thread. If your joint needs the shear plane in the solid shank, use a cap screw instead.
7) What thread standard do Metallics hex tap bolts conform to?
Threads are made to IFI-199 (2014). That matters if you are matching to tapped holes or nuts produced to a different standard; specifying the same standard across bolt and nut avoids assembly fit complaints on a large job.
8) Can I get this Metallics hex tap bolt in other lengths or diameters?
Yes. The HTB, JHTB and JSHTB series covers other sizes and pack quantities by request, so if 7/8-9 x 2-1/2 is longer or shorter than your grip requires, the same style is available in other dimensions.
9) How much does a box of 25 of these 7/8 inch tap bolts weigh?
A box runs 17.5 lbs. Useful if you are staging material by hand on an upper floor or figuring freight on a multi-box order.
How fast can I get the Metallics HTB106 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 HTB106 come with a warranty?
Absolutely. The Metallics HTB106 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 HTB106?
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selection,
installation tips, and troubleshooting. Contact Us
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