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Screw 10 x 1 PH FH SD #3 St-Zn (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics JTEKDF7 – Frequently Asked Questions
1) Do I need to pre-drill a pilot hole for these #10 self-drilling screws?
No. The SD #3 point drills its own hole as it drives, so no pilot hole and no separate drill step. That is the whole reason to use a self-drilling point on sheet metal, struts, and light steel framing instead of a standard tapping screw.
2) What is the correct part number to order for the 10 x 1 inch Phillips flat head self-drilling screw from Metallics?
Order Metallics JTEKDF7. That is the manufacturer part number for the #10 x 1 inch Phillips flat head self-drilling screw, #3 point, zinc plated steel, 100 per jar. There are no size or finish options to pick on it, so the single part number covers it.
3) Will a flat head screw sit flush, or will it stand proud of the surface?
Flat head (FH) is a countersunk head, so it seats flush when the hole is countersunk or when it is driven into material soft enough to let the head pull in. On bare sheet metal with no countersink, expect the conical head to sit slightly above the surface. If you need a fully flush face on steel, countersink the hole after the point breaks through.
4) Is the zinc plating on these screws okay for outdoor or damp locations?
Zinc plated steel (St-Zn) is a general purpose indoor and dry location finish. It resists handling corrosion and incidental moisture, but it is not a marine or sustained wet location coating. For exterior, wet, or corrosive environments, specify a stainless or coated exterior grade fastener instead.
5) How many screws come in a jar of Metallics JTEKDF7, and can I order a single screw?
They ship 100 screws per jar, and the jar is the selling unit, so you buy in multiples of 100 rather than piece by piece. The jar packaging is useful on a van or a cart because it keeps the #3 points from getting mixed in with other sizes.
6) What kind of electrical work are these self-drilling screws used for?
These are general electrical fastening screws: mounting straps, clips, boxes, plates, and brackets to sheet metal, strut, and light gauge steel where the self-drilling point lets you fasten in one pass without a drill. The #10 x 1 inch length suits thin substrates with a short grip, not deep structural anchoring.
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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 JTEKDF7 come with a warranty?
Absolutely. The Metallics JTEKDF7 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 JTEKDF7?
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