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Screws 1/4-20 x 4 FH Span TR MS USA 1 (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP353SFC – Frequently Asked Questions
1) What size and thread are the Metallics TP353SFC screws?
They are 1/4-20 x 4 inch machine screws, so a 1/4 inch diameter shank with 20 threads per inch and a 4 inch length. Being a machine screw thread, it mates with a tapped hole or a 1/4-20 nut, not with wood or sheet metal on its own.
2) What driver do I need for the Metallics TP353SFC tamper-resistant screw?
It uses a spanner drive, also called a snake-eye: two round holes in the head that take a matching two-pin spanner bit. A flat blade will not turn it, and that is the point. Order the bits with the screws if your techs do not already carry them, otherwise the fasteners cannot be installed or removed on site.
3) Will the TP353SFC sit flush in a countersunk hole?
Yes, it is a flat head screw, so it seats flush in an 82 degree countersunk hole. If your plate or cover is punched with a straight clearance hole rather than a countersink, the head will stand proud; you would want a pan or truss head instead.
4) Are these the right screws for securing cover plates where I don't want them removed?
That is exactly the use case. A 1/4-20 spanner-drive machine screw in a 4 inch length is specified where a panel, enclosure cover, or fixture mount has to be fastened into a tapped hole or nut and kept out of reach of casual tampering. Standard slotted or Phillips hardware in the same thread will interchange mechanically, so you can retrofit an existing 1/4-20 opening with these without re-tapping, as long as you have 4 inches of grip plus thread engagement available.
5) How many Metallics TP353SFC screws come in a box?
They are packed 100 pieces to the box. For a security or MRO order, that is the buying unit, so plan quantities in multiples of 100 rather than per piece.
6) What is the Metallics part number for the 1/4-20 x 4 flat head spanner screw?
The manufacturer part number is TP353SFC from Metallics. Use that number when matching a reorder, since the finish and drive style are not distinguishable from the head once installed.
How fast can I get the Metallics TP353SFC 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 TP353SFC come with a warranty?
Absolutely. The Metallics TP353SFC 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 TP353SFC?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics TP353SFC from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
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every order.
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