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Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP521SFC – Frequently Asked Questions
1) What size and type of screw is the Metallics TP521SFC?
The TP521SFC is a #6 x 5/8 inch sheet metal screw with a flat head and a hex pin tamper-resistant drive, made from 18-8 stainless steel. It comes 100 pieces to a pack.
2) Do I need a special driver to install the TP521SFC tamper-resistant screws?
Yes. The drive is a hex with a center pin, so a standard hex key or Allen bit will not engage it. You need a pin-in-hex (hex pin) tamper-resistant bit sized to the #6 screw. That is the point of the fastener: once it is in, nobody removes it with common tools.
3) Will a #6 x 5/8 sheet metal screw hold in an electrical enclosure or device cover?
A #6 x 5/8 inch sheet metal screw is sized for thin-gauge steel and sheet stock, which is what enclosure covers, box extensions, and panel trims are made from. The 5/8 inch length gives enough thread engagement through sheet metal without bottoming out on anything behind it. It is a self-threading SMS thread, not a machine screw thread, so it does not mate with a tapped 6-32 hole.
4) Are these Metallics screws stainless steel and okay for damp or outdoor use?
They are 18-8 stainless steel, which is the common austenitic grade used where corrosion resistance matters, so damp interior, washdown, and general exterior locations are within reason for the material. For salt spray or coastal exposure, a 316 stainless fastener is the better choice.
5) Does the flat head on the TP521SFC sit flush with the surface?
Flat head means a countersunk profile, so it seats flush in a countersunk or dimpled hole. On flat sheet with a plain drilled hole the head will stand slightly proud. If you need a head that bears on top of the material, a pan or truss head is the right pick instead.
6) Can I use the TP521SFC where tenants or the public can reach the hardware?
That is the use case. The hex pin head resists removal with everyday tools, which is why these go into public restrooms, common-area covers, security plates, and exposed enclosure panels in multi-family and institutional buildings. Keep a matching pin-in-hex bit with the building keys, because maintenance will need one to get back in.
7) How many screws come in a pack of Metallics TP521SFC?
One hundred pieces per pack. Worth knowing before you spec it for a multi-panel or multi-fixture job, since you buy in 100-count increments rather than loose.
How fast can I get the Metallics TP521SFC 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 TP521SFC come with a warranty?
Absolutely. The Metallics TP521SFC 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 TP521SFC?
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 TP521SFC 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.