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Screws 3/8-16 x 1-1/4 FH Hx Pin TR MS (100 pcs)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics TP142SFC – Frequently Asked Questions
1) What thread size and length is the Metallics TP142SFC screw?
The TP142SFC is a 3/8-16 x 1-1/4 inch machine screw. That is a 3/8 inch diameter with 16 threads per inch, coarse UNC, so it mates with a tapped 3/8-16 hole or a 3/8-16 nut. The 1-1/4 inch length is measured on a flat head screw, so it includes the head, leaving you about 1-1/4 inches of total grip plus engagement depth to work with.
2) What tool do I need to drive a Metallics TP142SFC tamper resistant screw?
You need a hex pin (tamper resistant hex) driver, not a plain Allen key. The TP142SFC has a hex socket with a solid pin in the center, so a standard hex wrench bottoms out on the pin and will not seat. The matching bit is a pin-in-hex security bit, and the bit size has to match the socket in the head. Keep a driver with the crew or the fasteners cannot be removed on service calls.
3) Will a flat head 3/8-16 screw sit flush, and what hole prep does it need?
Flat head means it is countersunk, so it finishes flush with the surface when the hole is chamfered to match the head angle. Drilling a straight clearance hole with no countersink will leave the head proud and it will not clamp properly. For a tapped joint, tap the receiving part 3/8-16 and clearance the top part for 3/8 inch, then countersink that top part.
4) Can I use a standard 3/8-16 bolt instead of the TP142SFC security screw?
Mechanically, yes, any 3/8-16 fastener of the same length will thread in. What you give up is the tamper resistance. The TP142SFC uses a pin-in-hex head specifically so the joint cannot be opened with the hex keys in a common tool pouch. If the fastener is holding a cover, guard, or enclosure in a public or tenant-accessible area, swapping in a standard hex or socket head defeats the reason the security screw was specified.
5) How many Metallics TP142SFC screws come in a pack?
They are packed 100 pieces to a box under part number TP142SFC. That quantity suits securing a run of enclosure covers, grating, or panel hardware where every fastener needs the same security head, and it keeps spares on the truck for the inevitable dropped screw.
How fast can I get the Metallics TP142SFC 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 TP142SFC come with a warranty?
Absolutely. The Metallics TP142SFC 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 TP142SFC?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics TP142SFC from ZenSupply?
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and
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every order.
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