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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 TP521SBC – Frequently Asked Questions
1) What size and type of screw is the Metallics TP521SBC?
It's a #6 x 5/8 inch sheet metal screw with a button head and a pin-in-hex (tamper-resistant) drive, made from 18-8 stainless steel. Sold 100 pieces to the box under part number TP521SBC.
2) Do I need a special bit to drive a pin-in-hex tamper-resistant screw?
Yes. The TP521SBC has a pin standing in the center of the hex socket, so a standard hex key or hex bit will not seat. You need a pin-in-hex (also called hex-pin or spanner-hex) driver bit sized to the #6 head. Order the bit with the screws if you don't already have one on the truck.
3) Is the Metallics TP521SBC screw suitable for outdoor or damp locations?
The 18-8 stainless steel body handles outdoor and damp-location use without rusting the way a plated carbon steel screw would. 18-8 is the common 300-series austenitic stainless used for general corrosion resistance; for salt spray or coastal exposure, a 316 stainless fastener is the better pick.
4) Will a #6 x 5/8 sheet metal screw hold in thin sheet steel like a device cover or enclosure?
Yes, that is what a sheet metal screw thread is for. The coarse, fully threaded body cuts and holds in sheet stock, and the 5/8 inch length leaves enough thread engagement behind thin gauge material without bottoming out in a shallow box. For thicker structural steel you want a self-drilling or machine screw into a tapped hole instead.
5) Why use a button head screw instead of a flat head on a cover plate?
A button head sits on top of the surface with a low, rounded profile, so it does not need a countersunk hole. Flat heads require a chamfered or countersunk seat to sit flush. On thin sheet metal covers and enclosures, where you cannot countersink, the button head on the TP521SBC is the one that works.
6) How many screws come in a box of Metallics TP521SBC?
100 pieces per box. For a property manager securing cover plates or enclosures across a building, that covers a lot of openings in one order, and keeping one tamper-resistant drive style across the site means one bit in the pouch instead of three.
How fast can I get the Metallics TP521SBC 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 TP521SBC come with a warranty?
Absolutely. The Metallics TP521SBC 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 TP521SBC?
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 TP521SBC 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.