You may also like
Screws 5/16-18 x 3/8 Btn Hx Pin TR MS (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP127SBC – Frequently Asked Questions
1) What tool do I need to drive a button head hex pin tamper-resistant screw?
A pin-in-hex (hex pin) driver. The TP127SBC head has a hex socket with a solid pin in the center, so a standard hex key or Allen wrench will not seat, it bottoms out on the pin. You need a hollow-center pin-in-hex bit sized to the socket. That is the whole point of the design: once it's installed, anyone without the matching security bit can't back it out.
2) Is a machine screw like the TP127SBC the right choice, or do I need a self-tapping screw?
A machine screw cuts no thread of its own. The TP127SBC's 5/16-18 thread needs a mating tapped hole or a nut already in place, which is the normal case on electrical enclosures, covers, strut nuts, and fixture housings. If you are driving into unthreaded sheet metal or into a plain drilled hole with no nut behind it, a machine screw is the wrong part and you want a self-drilling or sheet metal screw instead.
3) What is the manufacturer part number to order the Metallics 5/16-18 x 3/8 pin hex tamper-resistant button head screw?
Order it as Metallics TP127SBC. That single part number covers the 5/16-18 x 3/8 button head, hex pin tamper-resistant machine screw in the 100 piece pack.
4) Why use a tamper-resistant screw on an electrical cover or enclosure instead of a standard one?
To keep the panel closed to anyone without the bit. The TP127SBC is a pin-in-hex security screw, so the cover can only be removed by someone carrying the matching driver, which is what facilities want on public-area junction boxes, panel covers, restroom fixtures, and transit or school installations. The low button head also sits close to the surface, so there is less of a head to grab with pliers.
5) How many Metallics TP127SBC screws come in a pack?
They're packaged 100 pieces per box, which is a working quantity for an MRO cart or a single enclosure/fixture job rather than a one-off repair. If you are standardizing tamper-resistant hardware across a facility, buy in multiples so every opening uses the same pin-in-hex bit.
How fast can I get the Metallics TP127SBC 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 TP127SBC come with a warranty?
Absolutely. The Metallics TP127SBC 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 TP127SBC?
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 TP127SBC from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.