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Screws 8 x 5/8 FH Hx Pin TR SMS 18-8 (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP522SFC – Frequently Asked Questions
1) What driver do I need for the Metallics TP522SFC screw?
It takes a hex pin (pin-in-hex) security bit, not a Phillips or plain hex key. The pin in the center of the recess blocks a standard hex driver, so you need the matching pin-in-hex bit in the #8 size range before the screws get to the job.
2) Are these Metallics screws stainless steel, and will they hold up outdoors?
They are 18-8 stainless. That is the standard 300 series austenitic grade used for corrosion resistance in damp and outdoor-exposed work, which is why it gets specified for exterior enclosures, pool and locker room areas, and coastal-adjacent installs rather than plated carbon steel.
3) Will a sheet metal screw thread work in an electrical box, or do I need a machine screw?
The TP522SFC is a sheet metal screw thread, so it cuts and holds in sheet steel, thin panels and unthreaded holes. It will not thread into the tapped 6-32 or 8-32 holes in a standard outlet box or mud ring. For those you need a machine screw, not this part.
4) Why would a facility use tamper-resistant screws on outlet and switch plates?
Pin-in-hex heads stop anyone with a pocket screwdriver from opening a cover. That is the reason schools, transit areas, correctional facilities, detention rooms and public restrooms standardize on them for receptacle plates, junction box covers and device plates. The TP522SFC is the #8 x 5/8 flat head version of that screw in stainless.
5) Is a flat head screw the right choice for a cover plate, or should I use an oval or pan head?
Flat head sits flush when it is driven into a countersunk or chamfered hole, which is what most metal device plates and box covers are punched for. If the plate you are mounting has a raised or flat-bottom hole with no countersink, an oval or pan head seats better. The TP522SFC is the flat head option.
6) How many Metallics TP522SFC screws come in a box?
One hundred pieces per box, all #8 x 5/8 inch. Work out your count by device plate and order whole boxes; there is no smaller split pack on this part number.
How fast can I get the Metallics TP522SFC 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 TP522SFC come with a warranty?
Absolutely. The Metallics TP522SFC 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 TP522SFC?
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 TP522SFC 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.