Metallics #10 x 1 in. Flat Hea...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.17
$30.00
Metallics JTSF28 10 x 1 in. Flat Head Phillips Tapping Screws - Steel Zinc - 100qty

Metallics #10 x 1 in. Flat Head Phillips Type A Tapping Screws - Steel Zinc Finish, 100 Pack

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Model: JTSF28
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$50.17
$30.00
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Metallics #10 x 1 in. Flat Head Phillips Type A Tapping Screws - Steel Zinc Finish

Professional Grade Type A Tapping Screws for Electrical Applications

Metallics delivers professional-grade Type A tapping screws engineered for reliable fastening in electrical, plumbing, and HVAC applications. These #10 x 1 inch flat head Phillips screws feature steel zinc construction with gimlet point design for optimal thread-forming performance. Meeting ASME B18.6.4 dimensional standards and AISI 1016-1024 material specifications, these screws provide consistent quality for professional installations.

Professional Features & Benefits

  • #10 Diameter x 1 inch Length: Optimal size for standard electrical box mounting and component attachment applications
  • Steel Zinc Material with Rockwell C28-38 Hardness: Provides excellent corrosion resistance and durability for long-term performance
  • Flat Head Phillips Drive (#2 Driver): Ensures flush mounting and easy installation with standard Phillips screwdrivers
  • Type A Tapping Screw with Gimlet Point: Self-threading design creates secure connections in sheet metal and thin materials
  • ASME B18.6.4 Dimensional Standard: Guarantees consistent dimensions and professional-grade manufacturing quality
  • 48 lb-in Minimum Torsional Strength: Delivers reliable holding power for demanding electrical applications
  • 12 Threads Per Inch: Provides optimal thread engagement and secure fastening performance

Technical Specifications

  • Arra Compliant: N
  • Buy American Compliant: No
  • Country Of Origin: MUL
  • Department: Electrical
  • Dimensional Standard: ASME B18.6.4-1998
  • Division: Electrical H1
  • Drive Type: Phillips
  • Driver Size: #2
  • Fastener Head Height: 0.098 - 0.116 in.
  • Fastener Head Type: Flat
  • Fastener Head Width: 0.333 - 0.362 in.
  • Fastener Length: 1
  • Field Application: Electrical, Plumbing, Heating and Air Conditioning Industries
  • Gaging Diameter: 0.313
  • Hardness: Rockwell C28-38
  • Height: 2.15 in
  • Language Code: EN
  • Material: Steel Zinc
  • Material Standard: AISI 1016 - 1024
  • Neurspe: https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Flat_Phillips_Self_Tap.pdf
  • Order Minimum Imperial: 100
  • Order Minimum Uom Imperial: JR
  • Pack Type: Jar
  • Phillips Recess Depth: 0.124
  • Phillips Recess Diameter: 0.198
  • Phillips Recess Width: 0.032
  • Product Details: Type A Tapping Screw
  • Product Family: Electrical Supplies
  • Product Finish: Zinc
  • Product Group: Fasteners
  • Product Height: 54.61 MM
  • Product Length: 3 in
  • Product Subgroup: Screws
  • Product Type: Type A Tapping Screw
  • Product Weight: 277 g
  • Product Width: 76.2 MM
  • Protrusion Gaging Diameter: 0.025 - 0.042 Above
  • Screw Point Type: Gimlet Point
  • Series: JTSF
  • Sub Division: Electrical-E H2
  • Thread Per Inch: 12
  • Thread Standard: ASME B18.6.4
  • Torsional Strength: 48 lb-in minimum
  • Type2: Type A Tapping Screw
  • Weight: 0.61 lbs
  • Width: 3 in

Professional Applications

  • Electrical panel and junction box mounting
  • HVAC equipment installation and service
  • Plumbing fixture attachment
  • Sheet metal fabrication and assembly
  • Commercial and industrial maintenance
  • Electrical component mounting
  • Professional contractor applications

Why Choose Metallics Quality?

Metallics Type A tapping screws deliver consistent performance with ASME B18.6.4 dimensional compliance and AISI material standards. The steel zinc construction with Rockwell C28-38 hardness ensures reliable fastening strength and corrosion resistance for professional electrical, plumbing, and HVAC applications.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Country Of Origin:
MUL
Dimensional Standard:
ASME B18.6.4-1998
Division:
Electrical H1
Drive Type:
Phillips
Driver Size:
#2
Fastener Head Height:
0.098 - 0.116 in.
Fastener Head Type:
Flat
Fastener Head Width:
0.333 - 0.362 in.
Fastener Length:
1
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Gaging Diameter:
0.313
Hardness:
Rockwell C28-38
Language Code:
EN
Material Standard:
AISI 1016 - 1024
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Flat_Phillips_Self_Tap.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Jar
Phillips Recess Depth:
0.124
Phillips Recess Diameter:
0.198
Phillips Recess Width:
0.032
Product Family:
Electrical Supplies
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.61 lbs
Product Width:
3 in
Protrusion Gaging Diameter:
0.025 - 0.042 Above
Screw Point Type:
Gimlet Point
Sub Division:
Electrical-E H2
Thread Per Inch:
12
Thread Standard:
ASME B18.6.4
Torsional Strength:
48 lb-in minimum
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Type A Tapping Screw
Type2:
Type A Tapping Screw
Series:
JTSF
Product Finish:
Zinc
Product Details:
Type A Tapping Screw
Product Material:
Steel Zinc

Metallics JTSF28 – Frequently Asked Questions

1) Do Metallics JTSF28 Type A tapping screws need a pilot hole, or do they self-thread?
Type A tapping screws form their own threads, and the JTSF28 uses a gimlet point to start in sheet metal and thin stock. You still drill a clearance hole in the material being fastened, and a pilot hole sized to the screw's minor diameter in the base metal so the screw forms threads rather than stripping. Gaging diameter on this screw is 0.313 in.
2) Will a #10 x 1 in. flat head Phillips tapping screw sit flush in a countersunk hole?
Yes, that is what the flat head is for. Head width runs 0.333 to 0.362 in. and head height 0.098 to 0.116 in., so the hole needs an 82 degree countersink of at least that diameter for the head to finish flush with the surface. On unrecessed sheet metal the head will stand proud.
3) Do Metallics JTSF28 tapping screws meet Buy American or ARRA requirements on a federal job?
No. The JTSF28 is listed as not Buy American compliant and not ARRA compliant, with multiple countries of origin. If your specification carries a domestic sourcing clause, this fastener will not satisfy it.
4) What driver bit do I need for Metallics JTSF28 screws?
A #2 Phillips bit. The recess measures 0.198 in. diameter and 0.124 in. deep, which is a standard P2 fit. Using a #1 will cam out and chew the recess; a #3 will not seat.
5) How much torque can a #10 Type A tapping screw take before it snaps?
48 lb-in minimum torsional strength on the JTSF28, with the screw heat treated to Rockwell C28-38. Set an impact driver or clutch below that figure. Driving a #10 tapping screw with an uncontrolled impact is the usual reason heads twist off.
6) Are these Metallics screws OK outdoors or in a damp mechanical room?
The JTSF28 is carbon steel with a zinc finish, made to AISI 1016-1024 material spec. Zinc plate handles indoor humidity, mechanical rooms and covered locations fine. For direct weather exposure, coastal air or anywhere with standing moisture, go to a stainless or hot dip galvanized tapping screw instead; plain zinc will bloom white rust and eventually fail there.
7) Is a Type A tapping screw the right choice, or should I use a self-drilling Tek screw?
Type A is a thread-forming screw with a gimlet point. It needs a hole already there, and it grips best in thin sheet metal and similar thin stock. A self-drilling screw carries a drill point and makes its own hole, which is what you want for heavier gauge steel or when you cannot pre-drill. Pick the JTSF28 Type A when the holes are already punched, such as knockouts and factory prep on boxes and equipment.
8) Will a 1 inch screw be too long for mounting a device to an electrical box?
Fastener length is 1 in. under the head on a flat head screw, so the full inch buries in the assembly. In thin sheet metal that leaves most of the shank protruding past the back of the metal, which is fine in open framing but can foul conductors or a flush wall cavity. Where clearance behind the box is tight, step down to a shorter #10 Type A screw.
9) How many Metallics JTSF28 screws come in a jar, and is there a minimum order?
They ship 100 to a jar, and the jar is the minimum order unit. For a crew stocking a truck or an MRO crib, order in whole jars.
10) What dimensional standard do these #10 tapping screws conform to?
ASME B18.6.4-1998 for dimensions, with the threads to ASME B18.6.4 as well, at 12 threads per inch on the #10 size. That means head, recess and thread geometry match any other B18.6.4 #10 Type A screw, so they interchange with what is already in the panel.
11) Can I use these tapping screws on HVAC ductwork and plumbing brackets, or are they electrical only?
Metallics lists the JTSF28 for electrical, plumbing, and heating and air conditioning work. Same screw across all three trades: duct connections, hanger and bracket attachment, and sheet metal assembly are all within its intended use.
How fast can I get the Metallics JTSF28 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 JTSF28 come with a warranty?
Absolutely. The Metallics JTSF28 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 JTSF28?
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 JTSF28 from ZenSupply?
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