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Screws 1/4-20 x 3/4 RH 1way TR MS USA (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP419SRC – Frequently Asked Questions
1) Can a one-way tamper resistant screw be removed once it is installed?
Not with a normal driver. The TP419SRC has a one-way tamper resistant head: the slot is ramped so a flat blade drives it in but cams out when you try to back it out. Removal takes a dedicated one-way screw extractor or drilling the head off. Use these where you want a cover, sign, grille or enclosure plate to stay put, not where you expect routine service access.
2) Is the Metallics TP419SRC a wood screw or a machine screw?
Machine screw. The thread is a straight 1/4-20 machine thread, so it needs a tapped hole, a nut, or a threaded insert behind the material. It will not cut its own thread into wood or unthreaded sheet metal.
3) What head style is the TP419SRC and will it sit flush?
It is a round head (RH), so the head sits proud of the surface rather than flush. If the drawing calls for a countersunk flat head finish, this is the wrong profile.
4) How many screws come in a pack of Metallics TP419SRC?
100 pieces per pack. That is a bulk count sized for a full job, such as securing a run of covers or signage, rather than a single fixture repair.
5) Are these one-way security screws made in the USA?
Yes, the Metallics TP419SRC one-way machine screw is USA made, which matters on public and institutional work carrying domestic sourcing requirements.
6) What is the manufacturer part number to order these one-way screws by?
Order by Metallics part number TP419SRC. That one number covers the 1/4-20 x 3/4 round head one-way machine screw in the 100 piece pack.
How fast can I get the Metallics TP419SRC 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 TP419SRC come with a warranty?
Absolutely. The Metallics TP419SRC 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 TP419SRC?
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 TP419SRC 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.