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Screws 1/4-20 x 2-1/2 FH Span TR MS U (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP350SFC – Frequently Asked Questions
1) Does the TP350SFC need a special driver bit?
Yes. It uses a spanner (snake-eye) tamper-resistant head, which takes a two-pin spanner bit, not a Phillips or hex key. Order the matching spanner driver bit with the screws if you don't already carry one, otherwise the fasteners can't be installed.
2) Is a 1/4-20 machine screw right for fastening into sheet metal or wood, or do I need a tapped hole?
A machine screw like the TP350SFC has a straight machine thread, not a self-tapping or wood thread, so it needs a pre-tapped 1/4-20 hole or a nut on the back side. For unthreaded sheet metal, pair it with a 1/4-20 nut, weld nut, or threaded insert. It will not cut its own thread.
3) Why would I use a tamper-resistant screw instead of a standard flat head?
Tamper resistance is the point of the spanner head. In public corridors, restrooms, transit areas, school buildings, and anywhere electrical covers, grilles, or panels are exposed to the public, a spanner head stops removal with common tools. A standard Phillips or slotted flat head is the cheaper choice when the hardware isn't publicly accessible. The flat head on the TP350SFC sits flush in a countersunk hole, so it leaves nothing to grab or pry.
4) How many screws come in a pack of Metallics TP350SFC?
They ship 100 pieces per pack, so plan quantity in hundreds. For a repeated panel or cover detail, count your fasteners per opening and divide into 100 to see how many packs the job takes.
5) What is the Metallics part number and MPN for this tamper-resistant screw?
Metallics catalogs it as TP350SFC, which is both the model and the manufacturer part number. Quote that number when you need to reorder the same 1/4-20 x 2-1/2 spanner flat head machine screw.
How fast can I get the Metallics TP350SFC 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 TP350SFC come with a warranty?
Absolutely. The Metallics TP350SFC 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 TP350SFC?
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 TP350SFC 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.