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Screws 1/4-20 x 1 RH 1way TR MS USA 1 (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP420SRC – Frequently Asked Questions
1) Are the Metallics TP420SRC screws one-way tamper-proof, and can they be removed once installed?
They are one-way tamper-resistant machine screws. The head drives in with a standard flat blade screwdriver, then the ramped slot cams the blade out on reverse rotation, so the screw cannot be backed out with ordinary tools. Use them where you want a cover, sign, grille, or enclosure panel to stay put. If you need to service behind the fastener later, pick a conventional slotted or Phillips machine screw instead, because removing a one-way head usually means drilling it out or gripping the head with locking pliers.
2) How many screws come in a pack of Metallics TP420SRC?
100 pieces per pack. That quantity suits a facility or MRO buyer standardizing tamper-resistant fasteners across multiple covers or panels rather than buying a handful for one repair.
3) What head style are these 1/4-20 one-way screws, and will the head sit flush?
Round head. The head sits proud on top of the material rather than sinking into it, so no countersinking of the hole is needed, and there is a broad bearing surface against the panel. If your application calls for a flush surface, a round head one-way screw is the wrong choice and you want a flat head countersunk version.
4) Are the Metallics TP420SRC tamper-resistant screws made in the USA?
Yes, the TP420SRC 1/4-20 x 1 inch one-way round head machine screws are USA made, which matters on public and institutional jobs that carry domestic sourcing requirements.
How fast can I get the Metallics TP420SRC 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 TP420SRC come with a warranty?
Absolutely. The Metallics TP420SRC 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 TP420SRC?
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 TP420SRC 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.