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Screws 5/16-18 x 1-1/4 FH Hx Pin TR M (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP136SFC – Frequently Asked Questions
1) Is the TP136SFC a tamper resistant screw, and what driver does it take?
Yes. It is a hex pin drive tamper proof screw, meaning the hex socket has a center pin, so a standard hex key will not engage it. You need a pin-in-hex (pin hex) bit sized for 5/16-18 hardware to install or remove it. Keep a driver on the truck, because nothing in a normal bit set will back these out.
2) Why would I use a pin hex screw instead of a standard hex socket screw on electrical enclosures?
The point is public access. A flat head pin hex screw like the TP136SFC is used where a cover, panel, or fixture is reachable by people who should not be opening it: transit shelters, exterior enclosures, school and institutional spaces, parking structures. The center pin blocks a standard hex key, so a passerby with a common tool set cannot remove the cover. If the enclosure is inside a locked electrical room, a plain socket or Phillips screw is cheaper and faster to service.
3) Will a flat head screw sit flush, or do I need a countersunk hole?
Flat head means the head is conical and seats flush with the surface, so the hole has to be countersunk to match. On a panel that is only drilled straight through, the head will stand proud and may not clamp evenly. If you need a screw that sits on top of an undrilled flat surface, specify a pan or button head instead of this flat head version.
4) How many screws come in a pack of Metallics TP136SFC?
Sold 100 pieces to the pack. That is a box quantity rather than a job-count, so for a single enclosure cover you will have spares, and for a multi-site retrofit across a property you can standardize everything on one driver and one pack.
5) What is the part number to order these tamper proof screws?
Order Metallics part number TP136SFC. That one number covers the 5/16-18 x 1-1/4 flat head hex pin tamper resistant screw in the 100 piece pack, so there are no further options to specify.
How fast can I get the Metallics TP136SFC 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 TP136SFC come with a warranty?
Absolutely. The Metallics TP136SFC 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 TP136SFC?
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 TP136SFC 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.