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Screws 8-32 x 3/4 RH One Way TR SMS U (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP99SRC – Frequently Asked Questions
1) Can a one-way screw like the Metallics TP99SRC be removed after it's installed?
Not with a normal screwdriver, and that's the point. The TP99SRC is a one-way tamper resistant screw: the head drives in clockwise but the slot geometry gives a standard driver nothing to bite on in reverse. Once it's seated, removal generally means a specialty extractor or drilling the head out. Use it where you don't want the plate, cover, or grille coming off again, and use a conventional screw anywhere you expect to service the assembly.
2) Will the TP99SRC one-way screw sit flush, or does the head stand above the surface?
The head stands proud. TP99SRC is a round head screw, so it seats on top of the material rather than pulling down into a countersink. For a flush face on a cover plate or a panel you need a flat or oval head in a countersunk hole instead. Round head is the right pick when the hole is a plain drilled or punched hole with no chamfer.
3) What are one-way tamper resistant screws typically used for in electrical work?
Anywhere a cover should stay put: junction box and enclosure covers, device and wall plates in public corridors, restrooms and transit areas, grilles, signage, and fixture trims in schools, healthcare, and multi-family common areas. The Metallics TP99SRC in 8-32 x 3/4 is a standard device-plate thread, so it drops into existing 8-32 prep when you want to convert a plate from serviceable to secured.
4) What driver do I need for the Metallics TP99SRC one-way screw?
A standard flat blade screwdriver drives it. The one-way head uses a slot with ramped sides, so a common flat tip turns it in clockwise and then slips when you try to back it out. No proprietary bit to buy, which is part of why these get specified for field work.
5) How many screws come in a box of Metallics TP99SRC?
100 pieces per box. For MRO and electrical stock that covers a run of enclosure covers, device plates, or vandal-prone fixtures without reordering per job, and it keeps one part number on the shelf for every opening you want secured the same way.
How fast can I get the Metallics TP99SRC 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 TP99SRC come with a warranty?
Absolutely. The Metallics TP99SRC 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 TP99SRC?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics TP99SRC from ZenSupply?
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and
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