1/4-20 x 2 in. Flat Head Slotted Machine Screws - 18-8 Stainless - 100qty
Features
- Stainless steel machine screws are used in applications which require general atmospheric corrosion resistance, in food processing machinery and refrigeration equipment.
- Stainless is also superior to steel in withstanding some elevation in application operating temperature while maintaining its strength.
- Flat head with slotted Drive
- 1/4-20 Diameter, 2" Length
- 18-8 Stainless Material
Additional Notes
- Other sizes and quantities available by request | Hardness and tensile strength standards are offered as guides only for stainless machine screws. There is currently no national standard for these performance requirements for stainless machine screws.
Manufacturer Resources
Product Specs
- Minimum Purchase:
- 100 units
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ASME B18.6.3-1998
- Division:
- Electrical H1
- Drive Type:
- Slotted
- Fastener Head Height:
- 0.131 - 0.153 in.
- Fastener Head Type:
- Flat
- Fastener Head Width:
- 0.442 - 0.477 in.
- Fastener Length:
- 2
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Hardness:
- Rockwell B85-B95
- Language Code:
- EN
- Material Standard:
- SAE
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Flat_Head_Mach_Screw.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 4.57 in
- Product Length:
- 3 in
- Product Weight:
- 1.38 lbs
- Product Width:
- 3 in
- Slot Depth:
- 0.046 - 0.07
- Slot Width:
- 0.064 - 0.075
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 1900 lb minimum
- Thread Per Inch:
- 20
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- Department:
- Electrical
- Product Subgroup:
- Screws
- Product Type:
- Machine Screw
- Type2:
- Machine Screw
- Series:
- FM and FMP
- Product Details:
- Machine Screw
- Product Material:
- 18-8 Stainless
Metallics JFM104SS – Frequently Asked Questions
1) Will a 1/4-20 machine screw thread into a standard 1/4-20 tapped hole or nut?
Yes. The Metallics JFM104SS is a 1/4-20 UNC thread at 20 threads per inch, made to ANSI/ASME B1.1, so it mates with any standard 1/4-20 coarse tapped hole, nut, or strut channel nut.
2) Will these screws meet a Buy American or ARRA requirement on a federal job?
No. The JFM104SS is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your contract carries a domestic sourcing clause, this part will not satisfy it.
3) How much material thickness can a 2 inch long 1/4-20 flat head screw go through?
The 2 in. length is measured from the top of the flat head to the point, because flat heads are countersunk. Subtract the thickness of the tapped part or the nut stack from that 2 in. to work out your usable grip.
4) Is 18-8 stainless the right choice for damp or washdown areas, or should I use plated steel?
18-8 stainless is what you want where general atmospheric corrosion resistance matters, including food processing machinery and refrigeration equipment, and it holds strength better than steel at elevated operating temperatures. Plated steel is fine indoors and dry, but it will rust at the head in a washdown bay or outdoors.
5) Does a machine screw like this self-tap, or do I need to drill and tap first?
It does not self-tap. A machine screw has a blunt, uniform 1/4-20 UNC thread and needs a pre-tapped hole, a nut, or a threaded channel insert. For sheet metal with no existing threads you want a self-drilling or tapping screw instead.
6) Do these Metallics machine screws come loose or in a pack, and what is the minimum order?
JFM104SS ships as a jar, with an order minimum of 100 in jar units. Plan the count per jar into your job order rather than buying singles.
7) Are these machine screws suitable for mounting electrical boxes, panels, and HVAC equipment?
That is the intended use. The FM and FMP series is listed for the electrical, plumbing, heating and air conditioning trades, and a 1/4-20 x 2 in. flat head is a common size for panel, enclosure, and equipment mounting where the head has to sit flush.
How fast can I get the Metallics JFM104SS 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 JFM104SS come with a warranty?
Absolutely. The Metallics JFM104SS 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 JFM104SS?
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