10 x 3/4 in. 5/16 Indented Hex Head Self-Drilling & Tapping Screws with Washer - #3 Drill Point - Steel Zinc - 10000qty
Features
- #3 Drill Point
- Steel Zinc Material
- 5/16 Indented Hex Head with Hex Drive
- Minimum torques are the same for stainless and steel self-drill screws. Drill time is 2.5 seconds for a 1 mm thick plate.
- 10 Diameter, 3/4" Length
Additional Notes
- Other sizes and quantities available by request. | SAE J78 does not include Specifications for #7 diameter drill screws. | This table is only a guide and does not constitute a warranty of any type.
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 10000 units
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.6.3-2010
- Division:
- Electrical H1
- Drill Point Size:
- #3
- Drive Type:
- Hex
- Fastener Head Height:
- 0.105 - 0.12 in.
- Fastener Head Type:
- Indented Hex
- Fastener Head Width:
- 0.305 - 0.312 in.
- Fastener Length:
- 4-Mar
- Hardness:
- Rockwell C32-40
- Language Code:
- EN
- Material Standard:
- AISI 1016 - 1024
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Head_Self-Drill_TS_Indent_Hex_Washer.pdf
- Order Minimum Imperial:
- 10000
- Order Minimum Uom Imperial:
- TH
- Pack Type:
- Box
- Panel Thickness:
- 0.110 - 0.175 IN
- Product Group:
- Fasteners
- Product Height:
- 6.13 in
- Product Length:
- 9 in
- Product Weight:
- 59.3 lbs
- Product Width:
- 9 in
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Screw Point Type:
- Drill Point
- Slot Depth:
- 0.057 - 0.072
- Slot Width:
- 0.05 - 0.06
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 16
- Thread Standard:
- SAE J78 - 2013
- Torsional Strength:
- 61 lb-in minimum
- Washer Od:
- 0.384 - 0.414 in.
- Washer Thickness:
- 0.019 - 0.031 IN
- Width Across Corners:
- 0.34
- Department:
- Electrical
- Product Subgroup:
- Screws
- Product Type:
- Type BSD Self-Drilling & Tapping Screw
- Type2:
- Type BSD Self-Drilling & Tapping Screw
- Series:
- JTEKD
- Product Finish:
- Zinc
- Product Details:
- Type BSD Self-Drilling & Tapping Screw
- Product Material:
- Steel Zinc
Metallics TEKD1210M – Frequently Asked Questions
1) Can I use these screws on a Buy American or ARRA funded job?
Yes. The TEKD1210M is flagged both ARRA compliant and Buy American compliant, which is what a government, school, or healthcare procurement file usually needs on fasteners. Country of origin is listed as multiple.
2) How is the TEKD1210M packaged and what is the minimum order?
These ship boxed with an order minimum of 10,000 pieces, so it is a bulk-buy line aimed at contractors and MRO stockrooms rather than a small count carton. The full box weighs 59.3 lbs.
3) What size driver do I need for a 5/16 indented hex head self-drilling screw?
A 5/16 hex driver or socket. The head measures 0.305 to 0.312 in. across the flats with a head height of 0.105 to 0.12 in., and width across corners is 0.34 in., so a standard 5/16 magnetic nut setter in an impact or screwgun seats it fine. Drive type is hex only, no slot needed.
4) Does the TEKD1210M screw have a sealing washer or just a steel washer?
It is a bonded-free steel washer head, not a sealing washer. The washer OD runs 0.384 to 0.414 in. with a thickness of 0.019 to 0.031 in., which spreads the clamp load over sheet metal and strut. There is no rubber or EPDM element, so for weather-exposed roof or siding penetrations you want a separate neoprene-backed washer.
5) Will a #10 x 3/4 zinc self-drilling screw hold up in an outdoor or damp electrical install?
Material is steel with a zinc finish, which handles interior and protected exterior service. For standing moisture, coastal exposure, or chemical environments, zinc-plated carbon steel will eventually corrode and a stainless self-drilling screw is the better call.
6) What standards do these Metallics self-drilling tapping screws meet?
Threads are to SAE J78-2013 and head dimensions to ASME B18.6.3-2010. Steel is AISI 1016-1024 case hardened to Rockwell C32-40, with a minimum torsional strength of 61 lb-in. That combination is what a spec writer is looking for when a drawing calls out a Type BSD self-drilling and tapping screw.
7) How much thread engagement do I get from a 3/4 inch self-drilling screw with 16 threads per inch?
Thread pitch is 16 TPI on a 3/4 in. overall length, so after the drill point and the washer head you still have usable engagement in sheet up to the rated 0.175 in. For thicker stacks or where you are fastening a bracket plus a panel, step up to a longer screw so the point fully clears the back of the material and the threads can tap.
8) Do I need to pre-drill a pilot hole before driving these screws?
No. The point drills, taps, and fastens in one pass within the 0.110 to 0.175 in. panel range. Per the manufacturer data, drill time runs about 2.5 seconds on a 1 mm plate, and torque requirements are the same as for stainless self-drill screws.
How fast can I get the Metallics TEKD1210M delivered?
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Does the Metallics TEKD1210M come with a warranty?
Absolutely. The Metallics TEKD1210M is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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