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Screws 3/8-16 x 1-1/4 Btn 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 TP137SBC – Frequently Asked Questions
1) What thread size and length is the Metallics TP137SBC tamper-resistant screw?
The TP137SBC is a 3/8-16 x 1-1/4 inch machine screw, so it takes a 3/8-16 tapped hole or a matching 3/8-16 nut. The 1-1/4 inch length is measured on the shank under the button head, which is why total grip is thinner than the overall part once the head sits on the surface.
2) Can I drive a pin-in-hex tamper-resistant screw with a regular hex key?
No. The TP137SBC uses a button head hex socket with a pin in the center of the recess, so a standard Allen key bottoms out on the pin and will not seat. You need a pin-in-hex (hex-pin) driver bit or key sized for the recess. That is the whole point of the fastener: anyone without the matching bit cannot back it out, which is why it gets used on exterior enclosures, panel covers, and public-area equipment.
3) How many screws come in a pack of Metallics TP137SBC?
Sold 100 pieces to the box. For MRO stock or a repeat panel-cover job that is enough to cover a run of enclosures, but order the matching pin-in-hex driver separately. No nuts, washers, or driver bits are included with the fastener pack.
4) Is a button head the right choice for a tamper-resistant screw on an electrical cover?
A button head sits as a low, rounded dome on top of the material, so it does not need a countersink and leaves nothing flat for a plier or wrench to grab. Use it where the surface can take a proud head. If the cover has to finish flush, a button head is the wrong profile and you want a flat or countersunk tamper-resistant head instead. The TP137SBC is the button head version in 3/8-16 x 1-1/4.
5) What is the Metallics part number to reorder these 3/8-16 tamper-resistant screws?
Order Metallics TP137SBC. That number covers the 3/8-16 x 1-1/4 button head hex pin tamper-resistant machine screw in the 100 piece pack, and it is the number to quote when you are standardizing one driver bit across a facility so maintenance only has to carry one tool.
How fast can I get the Metallics TP137SBC 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 TP137SBC come with a warranty?
Absolutely. The Metallics TP137SBC 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 TP137SBC?
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installation tips, and troubleshooting. Contact Us
Why buy the Metallics TP137SBC from ZenSupply?
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and
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