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Screws 8 x 1/2 FH Star 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 TP604SFC – Frequently Asked Questions
1) What size and thread type is the Metallics TP604SFC tamper resistant screw?
It's a #8 x 1/2 inch sheet metal screw (SMS), so it runs a coarse, fully threaded self-tapping thread meant for thin sheet metal, enclosures, and panel work rather than wood framing. Flat head, so it sits flush in a countersunk or punched hole. Sold 100 pieces to a box.
2) What driver do I need for a star pin-in tamper resistant screw like the TP604SFC?
A pin-in-star (pin-in-Torx) bit. The screw head has a six-lobe star recess with a solid pin standing in the center, so a standard Torx bit bottoms out on the pin and won't seat. You need the matching pin-in-Torx security bit in the size that fits a #8 head. That pin is the whole point of the TR designation: it keeps a common Torx or driver set from backing the fastener out.
3) Are these screws stainless, and will they hold up outdoors or in a damp mechanical room?
They're 18-8 stainless steel, the austenitic 300 series grade used for general corrosion resistance. That makes them suitable for exterior enclosures, wash-down areas, and damp plant or mechanical spaces where plated carbon steel would rust. For direct salt spray or coastal exposure, a 316 fastener is the heavier-duty choice.
4) Will a flat head tamper resistant screw sit flush on a cover plate or enclosure door?
Yes, provided the hole is countersunk or dimpled. The TP604SFC is a flat head (FH), which seats into an 82 degree countersink and finishes flush with the surface. On a flat, un-countersunk sheet metal hole the head will stand slightly proud, so for those applications a pan or truss head tamper screw is the better pick.
5) Is a 1/2 inch screw long enough for the material I'm fastening into?
At 1/2 inch of length under the head, it's sized for thin stock: sheet metal panels, junction box covers, trim plates, and light gauge brackets where total material thickness is well under 1/2 inch so the thread still has engagement. Stacking into thicker assemblies or through a gasket plus panel will leave too little thread biting, and you'd want a longer screw in the same style.
6) Which Metallics part number do I order for #8 x 1/2 star pin tamper resistant stainless screws?
Order Metallics TP604SFC. That part number covers the #8 x 1/2 inch flat head pin-in-star tamper resistant sheet metal screw in 18-8 stainless, packed 100 to the box, so one part number is all a facilities or electrical crew needs on the requisition for standardizing security fasteners across panels and cover plates.
How fast can I get the Metallics TP604SFC 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 TP604SFC come with a warranty?
Absolutely. The Metallics TP604SFC 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 TP604SFC?
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installation tips, and troubleshooting. Contact Us
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