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Screws 1/4-28 x 3/4 PN Span TR MS USA (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP325SPC – Frequently Asked Questions
1) What thread size and length is the Metallics TP325SPC tamper-resistant screw?
It's a 1/4-28 x 3/4 inch machine screw. The 1/4-28 is a fine-thread (UNF) size, so it mates with 1/4-28 tapped holes or nuts only, not coarse 1/4-20. Overall threaded length is 3/4 inch, which is the usable grip for your material plus tapped depth.
2) What driver do I need for a spanner head screw like the TP325SPC?
A spanner (snake-eye) bit, not a Phillips or Torx. The pan head has two round holes drilled in the face, and the matching bit has two pins that drop into them. If your crew doesn't already carry spanner bits in 1/4 inch hex or insert form, order them with the screws, because nothing else will drive or remove these.
3) Will a 1/4-28 machine screw thread into sheet metal or drywall?
No. A machine screw has no self-tapping point, so it needs a pre-tapped 1/4-28 hole, a 1/4-28 nut, or a threaded insert. For bare sheet metal or wallboard you want a sheet metal screw or a tamper-resistant self-tapper instead, or add a 1/4-28 nut behind the panel.
4) Are these screws tamper resistant for public restroom and fixture installs?
Yes. The spanner drive is a tamper-resistant head, which is why these get specified for restroom partitions, panel covers, grilles, light fixture trims and other public-area hardware where you don't want a standard screwdriver backing the fastener out. Pan head gives a low, rounded profile against the panel surface.
5) What is the Metallics part number for the 1/4-28 x 3/4 pan spanner machine screw?
Metallics calls it TP325SPC. That single MPN covers the 1/4-28 x 3/4 inch pan head spanner tamper-resistant machine screw in the 100-piece pack, made in the USA. Use that number when matching an existing stocking item.
6) How many Metallics TP325SPC screws come in a pack?
100 pieces per pack. That's a box quantity, so for small MRO jobs you're buying more than one opening's worth, and for a fleet of partitions or fixture covers it covers the run with spares.
How fast can I get the Metallics TP325SPC 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 TP325SPC come with a warranty?
Absolutely. The Metallics TP325SPC 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 TP325SPC?
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